Clytia hemisphaerica Linnaeus 1767

Clytia hemisphaerica (Linnaeus, 1767) Fig. 101 A–D See Peña Cantero & García Carrascosa (2002) for a complete synonymy. Material examined. HCUS-S 108 p and HCUS-S 108m (Hydrozoa Collection, University of Salento—fauna of the Salento Peninsula)—polyp and medusa stages. Description (based on our o...

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Main Authors: Gravili, Cinzia, Vito, Doris De, Camillo, Cristina Gioia Di, Martell, Luis, Piraino, Stefano, Boero, Ferdinando
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Published: Zenodo 2015
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Online Access:https://dx.doi.org/10.5281/zenodo.6107192
https://zenodo.org/record/6107192
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Summary:Clytia hemisphaerica (Linnaeus, 1767) Fig. 101 A–D See Peña Cantero & García Carrascosa (2002) for a complete synonymy. Material examined. HCUS-S 108 p and HCUS-S 108m (Hydrozoa Collection, University of Salento—fauna of the Salento Peninsula)—polyp and medusa stages. Description (based on our own observations; Cornelius 1995; Schuchert 2001 a): Hydroid. Hydrorhiza as a creeping stolon system; colonies usually stolonal but occasionally erect; hydrothecal pedicels borne at close intervals, straight, with one to several rings at top and bottom and in some specimens also centrally, sometimes forking, secondary pedicels having characteristic upward curved basal region; hydranths 3–4 times as long as broad when fully extended; with usually 24–30 amphicoronate tentacles; hydrothecae campanulate, diaphragm thin, rim with ca 8–14 broad rounded-triangular cusps. Gonothecae tubular, with wide opening, walls smooth in some specimens but typically with trasverse folds arising from hydrorhiza on short, slender pedicels. Cnidome. b-mastigophores, 2 types (polyp), isorhizas (medusa). Habitat type. Clytia hemisphaerica is a eurybathic species that, in the Mediterranean, has been found from the tidal level to about 140 m depth (Broch 1933; Boero & Fresi 1986; Roca 1986); records from the Baltic (Cornelius 1995) indicate tolerance to brackish water. Substrate. Algae, phanerogams, hydrozoans, other invertebrates, floating objects. Seasonality. January–December (Boero & Fresi 1986; Puce et al . 2009; De Vito 2006; this study) in the Mediterranean Sea. Reproductive period. January (Stechow 1923; Boero & Fresi 1986; Puce et al . 2009), February (Stechow 1923; Picard 1951 a; Gili 1986; Boero & Fresi 1986; De Vito 2006; Puce et al . 2009; this study), March (Stechow 1923; Rossi 1961; Roca 1986; Boero & Fresi 1986; De Vito 2006; Puce et al . 2009; this study), April (Stechow 1919; Picard 1955; Roca 1986; De Vito 2006; Puce et al . 2009; this study), May (Stechow 1919; Gili 1986; Roca 1986; Piraino & Morri 1989; De Vito 2006; Puce et al . 2009; this study), June (Stechow 1919; Roca 1986; Morri & Bianchi 1999; De Vito 2006; this study), July (Peña Cantero & García Carrascosa 2002; De Vito 2006; this study), August (Boero & Fresi 1986; Peña Cantero & García Carrascosa 2002; De Vito 2006; Puce et al . 2009; this study), September (Boero & Fresi 1986; De Vito 2006; Puce et al . 2009; this study), October (Boero & Fresi 1986; Puce et al . 2009), November (Rossi 1961; Boero & Fresi 1986; Piraino & Morri 1989; Puce et al . 2009), and December (Boero & Fresi 1986; Puce et al . 2009) in several localities of the Mediterranean Sea. Medusa. Adult. Umbrella nearly hemispherical or flatter, up to 20 mm wide, mesoglea fairly thin; manubrium small, quadrate, with small base; 4 simple lips; usually 4 straight radial canals (sometimes more, up to 12); gonads oval or linear, 1 / 2–3 / 4 of length of radial canals without median furrow, nearer to margin than to manubrium; velum narrow; typically 32 (16–58) marginal tentacular bulbs, globular, prominent, each with one tentacle, also with few partially developed marginal bulbs; 1–3 usually 2 statocysts between successive tentacles. Colours: coloration varied, marginal tentacle bases and stomach yellowish, yellow brown, reddish brown, greenish or purple; gonads yellowish. Developmental stages. The size range for medusae and the numbers of tentacles, including developing bulbs, vary depending on the seasonal variation; in the spring and early summer the medusae grow to a larger size than at other times of the year (for more details see Russell 1938). Distribution. Polyp nearly cosmopolitan in temperate waters of all oceans (Fraser 1944; Naumov 1969; Marinopoulos 1979; Cornelius 1995; Medel & López-González 1996; Schuchert 2001 a; Peña Cantero & García Carrascosa 2002; Bouillon et al. 2004; Gravili et al . 2008 a; Soto Ãngel & Peña Cantero 2013). Records in Salento. Common at: Torre dell’Inserraglio, Torre S. Emiliano, La Rotonda, Porto Badisco, Marina di Corsano, Palude del Capitano, Torre Vado (Presicce 1991); Otranto (De Vito 2006; Gravili 2006; Gravili et al . 2008 a; Ventura 2011; Piraino et al . 2013; this study); Torre Lapillo, S.ta Caterina (Andreano 2007); La Strea (Porto Cesareo) (Andreano 2007; Ventura 2011); Il Chiapparo (C. Gravili unpublished observations). Remarks. The whole life cycle was examined in the present study. Clytia hemisphaerica can be difficult to identify in the absence of gonothecae, when it is often confused with C. gracilis (for more details see Cornelius 1995). Reports about medusae with multiple radial canals might be referred to Clytia gracilis (see above). Many supposed variations of this species might be referrable to other, distinct species. References. Lo Bianco (1909), Mayer (1910) as Phialidium hemisphaericum Hadzi (1911) as Clythia johnstoni Neppi & Stiasny (1911, 1913) as Thaumantias hemisphaericum Broch (1912, 1933 as Campanularia (Phialidium) johnstoni f. typica and f. crassa ), Neppi (1912, 1918, 1919, 1920), Pell (1918, 1938), Stechow (1919, 1923), Kramp (1924, 1961), Vatova (1928), Billard (1931, 1936), Ranson (1933), Leloup (1934), Babnik (1948), Picard & Roch (1949), Rossi (1950, 1961, 1971), Picard (Picard 1951 a, 1952, 1958 a), Russell (1953), Trégouboff & Rose (1957), Tortonese (1958), Riedl (1959, 1970, 1991), Rossi (1961), Goy (1973), Schmidt (1973), Chimenz Gusso & Rivosecchi Taramelli (1976), Montanari & Morri (1977), Relini et al. (1977), Repetto et al. (1977), Morri (1979 c, 1980 b, 1981 a, b, 1985), Relini et al. (1979), Boero (1981 a, b, c), García Carrascosa (1981), Fresi et al. (1982), Morri & Bianchi (1982, 1983), Boero et al. (1985), Bavestrello (1985), Boero et al. (1985), Boero & Fresi (1986), Gili (1986), Llobet et al. (1986, 1991), Benović & Bender (1987), García-Rubies (1987, 1992), Llobet i Nidal (1987), Östman et al. (1987), Roca (1987), Goy et al. (1988, 1990, 1991), Ramil (1988), Piraino & Morri (1989, 1990), Morri et al. (1991), Roca et al. (1991), Morri et al. (1992), Bianchi et al. (1993 a, b), Altuna (1994), Benović & Lučić (1996), Migotto (1996), Mills et al. (1996), Medel & López-González (1996), Morri & Bianchi (1999), Piraino et al . (1999), Medel & Vervoort (2000), Peña Cantero & García Carrascosa (2002), Bouillon et al. (2004), Benović et al . (2000, 2005), Milos & Malej (2005) as P. hemisphaericum De Vito (2006), Gravili (2006), Batistić et al . (2007), Galea (2007), Gravili et al . (2008 a), Morri et al . (2009), Puce et al. (2009), Touzri et al. (2010), Giovannetti et al. (2010), Bianchi et al. (2011), Ventura (2011), Piraino et al . (2013). : Published as part of Gravili, Cinzia, Vito, Doris De, Camillo, Cristina Gioia Di, Martell, Luis, Piraino, Stefano & Boero, Ferdinando, 2015, The non-Siphonophoran Hydrozoa (Cnidaria) of Salento, Italy with notes on their life-cycles: an illustrated guide, pp. 1-187 in Zootaxa 3908 (1) on pages 142-143, DOI: 10.11646/zootaxa.3908.1.1, http://zenodo.org/record/242729 : {"references": ["Pena Cantero, A. L. & Garcia Carrascosa, A. M. (2002) The benthic hydroid fauna of the Chafarinas Islands (Alboran Sea, western Mediterranean). Zoologische Verhandelingen Leiden, 337, 1 - 180.", "Cornelius, P. F. S. (1995) NorthWest European Thecate Hydroids and their Medusae. Synopses of the British Fauna, New Series, pt. 1 & 2, 1 - 347 & 1 - 386.", "Schuchert, P. (2001 a) Hydroids of Greenland and Iceland (Cnidaria, Hydrozoa). Meddelelser om Gronland, Bioscience, 53, 1 - 184.", "Broch, H. (1933) Zur kenntnis der Adriatischen fauna Von Split. Skrifter Norske Videnskaps-Akademi i Oslo. Matematisknaturvidenskapelig klasse, 4, 1 - 115.", "Boero, F. & Fresi, E. (1986) Zonation and evolution of a Rocky bottom hydroid community. Marine Ecology, 7 (2), 123 - 150. http: // dx. doi. org / 10.1111 / j. 1439 - 0485.1986. tb 00152. x", "Roca, I. (1986) Estudio de los Cnidarios Bentonicos de las aguas costeras de Mallorca. Tesis, Universitat de les illes Balears, Facultat de Ciencies, Palma de Mallorca, 32 pp.", "Stechow, E. (1923) Zur Kenntnis der Hydroidenfauna des Mittelmeeres, Amerikas und anderer Gebiete. II. Teil. Zoologischer Jahrbucher, Abteilung fur Systematik, 47 (1), 29 - 270.", "Picard, J. (1951 a) Les hydraires des formations coralligenes des cotes francaises de la Mediterranee. Vie Milieu, 2 (2), 255 - 261.", "Rossi, L. (1961) Idroidi viventi sulle scogliere del promontorio di Portofino (Golfo di Genova). Annali del Museo Civico di Storia Naturale di Genova, 72, 68 - 85.", "Stechow, E. (1919) Zur Kenntnis der Hydroidenfauna des Mittelmeeres, Amerikas und anderer Gebiete, nebst Angaben uber einige Kirchenpauersche Typen von Plumulariden. Zoologische Jahrbucher, Abeilung fur Systematik, 42 (1), 1 - 172.", "Picard, J. (1955) Nouvelles recherches sur les hydromeduses des Herbiers mediterraneens de Posidonies. Recueil des Travaux de la Station Marine D'Endoume, 15 (Bulleton 9), 59 - 71.", "Piraino, S. & Morri, C. (1989) Zonazione di idroidi epifiti in una laguna costiera della Sicilia nord-occidentale. In: Atti del XIX. Congresso della Societa Italiana di Biologia Marina (Napoli, 24 - 28 Settembre 1987). Oebalia, New Series, 15, pp. 307 - 310.", "Russell, F. S. (1938) The Plymouth offshore medusae fauna. Journal of the Marine Biological Association of the United Kingdom, New Series, 22 (2), 411 - 440. http: // dx. doi. org / 10.1017 / s 0025315400012339", "Fraser, C. McLean (1944) Hydroids of the Atlantic coast of North America. The University of Toronto Press, Toronto, 45 l pp.", "Naumov, D. V. (1969) Hydroids and Hydromedusae of the USSR. Jerusalem: Israel Program for Scientific Translation, i - vi, 631 pp., 30 pls.", "Marinopoulos, J. (1979) Distribution des Eudendrium dans la region Marseillaise. Etude preliminaire. Rapports et Proces Verbaux des Reunions, Commission Internationale pour l'Exploration Scientifique de la Mer Mediterranee, 25 - 26 (4), 117 - 118.", "Medel, M. D. & Lopez-Gonzalez, P. J. (1996) Updated catalogue of the Hydrozoans from the Iberian Peninsula and Balearic Islands with remarks on zoogeography and affinities. Scientia Marina, 60 (1), 183 - 209.", "Gravili, C., Boero, F. & Licandro, P. (2008 a) Hydrozoa. Biologia Marina Mediterranea, 15 (Supplement), 71 - 91.", "Soto Angel, J. J. & Pena Cantero, A. L. (2013) Shallow-water benthic hydroids from the Maltese Islands (Central Mediterranean). Marine Ecology, 34 (s 1), 177 - 196. http: // dx. doi. org / 10.1111 / maec. 12035", "Presicce, M. M. (1991) Gli idroidi (Cnidaria: Hydrozoa) del litorale salentino. Degree Thesis, Marine Biology, Universita degli Studi di Lecce, 143 pp.", "Ventura, P. (2011) Comparison between hydroid fauna of Porto Cesareo (Ionian Sea) and Otranto (Adriatic Sea). Master thesis submitted for the partial fulfillment of the title of Master of Science in Marine Biodiversity and Conservation within the ERASMUS MUNDUS Master Programme EMBC. [unknown pagination]", "Piraino, S., De Vito, D., Brodbeck, E., Di Camillo, G. C., Fanelli, G. & Boero, F. (2013) Destructive standard squares or lowimpact visually driven collection? A comparison of methods for quantitative samplings of benthic hydrozoans. Italian Journal of Zoology, 80 (3), 424 - 436. http: // dx. doi. org / 10.1080 / 11250003.2013.787461", "Andreano, F. (2007) Identificazione degli idroidi (Cnidaria: Hydrozoa) nella fascia batimetrica dei 0 - 5 m. Degree Thesis, Marine Biology, University of Salento, 152 pp.", "Lo Bianco, S. (1909) Notize biologiche riguardanti specialmente il periodo di maturita sessuale degli animali del Golfo di Napoli. Mittheilungen aus der Zoologischen Station zu Neapel, 19 (4), 513 - 763.", "Mayer, A. G. (1910) Medusae of the world. Hydromedusae. Vol. I & II. Washington, Carnegie Institution, 735 pp.", "Hadzi, J. (1911) Razmjestaj i selidba knidocita u hidromeduza i u hidroida uopce. Rad Jugoslavenske Akaddemije Znanosti i Umjetnosti. Matematicko-Prirodoslovnim Razredom, 188, 141 - 247.", "Neppi, V. & Stiasny, G. (1911) Die Hydromedusen des Golfes von Triest. Zoologischer Anzeiger, 38 (16 - 17), 395 - 399.", "Neppi, V. & Stiasny, G. (1913) Die Hydromedusen des Golfes von Triest. Arbeiten aus der Zoologischen Instituten der Universiiat Wien und der Zoologischen Station in Triest, 20 (1), 23 - 92.", "Broch, H. (1912) Hydroidenuntersuchungen. Vergleichende Studien an Adriatischen hydroiden. Kongelige Norske Videnskabers Selskabs Skrifter, 1, 1 - 65.", "Neppi, V. (1912) Adriatische Hydromedusen. Sitzungsberichte der Akademie der Wissenschaften in Wien, Mathematischnaturwissenschaft Klasse, 121 (8), 707 - 734.", "Neppi, V. (1918) Sulla rigenerazione nelle idromeduse. Pubblicazioni della Stazione Zoologica di Napoli, 2 (2), 191 - 207.", "Neppi, V. (1919) Notizia riguardante alcune idromeduse anomale. Bollettino della Societa Naturalistica di Napoli, 31, 118 - 125.", "Neppi, V. (1920) Aggiunta alla nota sopra alcune idromeduse anomale del golfo di Napoli. Bollettino della Societa Naturalistica di Napoli, 32, 89 - 91.", "Pell, M. (1918) Hydromedusae of Hungarian Adriatic (' Najade') Expeditions 1913, 1914. Kuloonlenyomat az Allatani Kozlemenyek, Budapest, 17, 22 - 32, 92 - 93.", "Pell, M. (1938) The hydromedusae of the Adriatic, collected by the \" Najade \". Mathematikai es Termeszet-tudomanyi Ertesito, 57 (2), 919 - 930.", "Kramp, P. L. (1924) Medusae. In: Report on the Danish Oceanographical Expeditions, 1908 - 1910, 2 (Biology H 1), pp. 1 - 67.", "Kramp, P. L. (1961) Synopsis of the medusae of the world. Journal of the Marine Biological Association of the United Kingdom, 40, 1 - 469. http: // dx. doi. org / 10.1017 / s 0025315400007347", "Vatova, A. (1928) Compendio della Flora et Fauna del Mare Adriatico presso Rovigno con la distribuzione geografica delle specie bentoniche. Memorie del Regio Comitato Talassografico Italiano, 143, 1 - 614.", "Billard, A. (1931) Hydroides des cotes de Syrie (Mission Gruvel). In: Gruvel, A. (Ed.), Les etats de Syrie. Richesse marines et fluviales. Exploitation actuelle. Avenir. Bibliotheque de la Faune des Colonies Francaises, 3, pp. 389 - 395.", "Billard, A. (1936) Les fonds de peche pres d'Alexandrie. VI. Hydroidea. Notes and Memoires Ministere du Commerce et de l'Industrie, Egypte, 13, 1 - 11.", "Ranson, G. (1933) Revision de la collection des meduses du Museum National d'Histoire naturelle (suite I). Bulletin du Museum National d'Histoire Naturelle de Paris, Serie 2, 5 (3), 223 - 229.", "Leloup, E. (1934) Note sur les hydropolypes de la rade de Villefranche-sur-Mer (France). Bulletin du Musee Royal d'Histoire naturelle de Belgique, 10 (31), 1 - 18.", "Babnik, P. (1948) Hidromeduze iz srednjega in junega Jadrana v letih 1939 in 1940. Hydromedusae from the middle and South Adriatic 1939 and 1940. Acta Adriatica, 3 (9), 275 - 340.", "Picard, J. & Le Roch, S. (1949) Les cnidaires epiphytes des zosteres de la Mediterranee (note preliminaire). La Feuille des Naturalistes, 4 (9 - 10), 93 - 94.", "Rossi, L. (1950) Celenterati del Golfo di Rapallo (Riviera Ligure). Bollettino del Museo di Zoologia dell'Universita di Torino, 2 (4), 193 - 235.", "Rossi, L. (1971) Guida a Cnidari e Ctenofori d'Italia. Quaderni della Civica Stazione Idrobiologica di Milano, 2, 1 - 101.", "Picard, J. (1952) Les Hydrozoaires des herbiers de Zosteracees des cotes francaises de la Mediterranee. Vie Milieu, 2 (Supplement), 217 - 233.", "Picard, J. (1958 a) Origines et affinites de la faune d'hydropolypes (Gymnoblastes et Calyptoblastes) et d'hydromeduses (Anthomeduses et Leptomeduses) de la Mediterranee. Rapports et proces verbaux des Reunions de la Commission Internationale pour l'Exploration Scientifique de la Mer Mediterranee Monaco, 14, 187 - 199.", "Russell, F. S. (1953) The medusae of the British Isles, Anthomedusae, Leptomedusae, Limnomedusae, Trachymedusae and Narcomedusae. London, Cambridge University Press, 530 pp. http: // dx. doi. org / 10.1126 / science. 119.3095.562", "Tregouboff, G. & Rose, M. (1957) Manuel de Planctonologie Mediterraneenne. Tome I & II. C. N. R. S., Paris, 587 pp. & 31 pls. [pls. 62 - 93].", "Tortonese, E. (1958) Bionomia marina della regione costiera fra Punta della Chiappe e Portofino (Riviera Ligure di Levante). Archivio di Oceanografia e Limnologia, 11 (2), 167 - 210.", "Riedl, R. (1959) Die Hydroiden des Golfes von Neapel und ihr Anteil an der Fauna unterseeischen Hohlen. In: Ergebnisse der osterreichischen Tyrrhenia-Expedition 1952, Teil xvi. Pubblicazioni della Stazione Zoologica di Napoli, 30 (supplement), pp. 591 - 755.", "Riedl, R. (1970) Fauna und Flora der Adria. 2 nd Edition. Verlag Paul Parey, Hamburg & Berlin, 640 pp.", "Riedl, R. (1991) Fauna e flora del Mediterraneo. Muzio (Ed.), Padova, 777 pp.", "Goy, J. (1973) Les Hydromeduses de la mer Ligure. Bulletin du Museum National d'Histoire naturelle, Paris, Serie 3 (Zoologie), 83 (62), 965 - 1008.", "Schmidt, H. E. (1973) Biogeographical problems of the Red Sea area exemplified by hydroids. In: Zeitschel, B. & Gerlach, S. A. (Eds.), The Biology of the Indian Ocean. Ecological studies, Analysis and Synthesis, 3, pp. 283 - 287. http: // dx. doi. org / 10.1007 / 978 - 3 - 642 - 65468 - 8 _ 22", "Montanari, M. & Morri, C. (1977) Fouling di alcune piattiforme off-shore dei mari italiani: V. Gli Idroidi. Atti IX. Congresso della Societa Italiana di Biologia Marina, pp. 293 - 302.", "Relini Orsi, L., Zotti, A. & Relini, G. (1977) Epifauna sessile di Posidonia oceanica in una prateria profonda del Mar Ligure. Atti del IX Congresso della Societa Italiana di Biologia Marina, Lacco Ameno d'Ischia, Napoli, 19 - 22 Maggio 1977, pp. 399 - 413.", "Repetto, L., Montanari, M. & Martini, F. (1977) Popolamenti di substrati artificiali posti su un fondo a coralligeno ed in una prateria di Posidonia. V: Idroidi. Atti del IX Congresso della Societa Italiana di Biologia Marina, Lacco Ameno d'Ischia, Napoli, 19 - 22 Maggio 1977, 415 - 425.", "Morri, C. (1979 c) Remarques sur les hydraires vivants dans les salissures biologiques de quelques centrales thermo-electriques cotieres italiennes. In: XI. Congresso della Societa Italiana di Biologia Marina. Atti della Societa Toscana di Scienze Naturali, Memorie, 86 (Supplement), pp. 305 - 307.", "Morri, C. (1980 b) Osservazioni sugli idroidi raccolti nelle condotte della centrale termoelettrica di Torvaldaglia (Civitavecchia). Natura, 71 (1 - 2), 3 - 14.", "Morri, C. (1981 a) Les Hydraires de quelques milieux lagunaires italien (Italie continentale et Sardaigne). Rapports et Proces Verbaux des Reunions, Commission Internationale pour l'Exploration Scientifique de la Mer Mediterranee, 27 (4), 193 - 194.", "Morri, C. (1981 b) Idrozoi lagunari. Guide per il riconoscimento delle specie animali delle acque lagunari e costiere italiane. Consiglio Nazionale delle Ricerche, Roma, AQ / 1 / 94, 6, 1 - 105. http: // dx. doi. org / 10.1002 / iroh. 19810660144", "Boero, F. (1981 a) Systematics and ecology of the hydroid population of two Posidonia oceanica meadows. Pubblicazioni della Stazione zoologica di Napoli, 2 (3), 181 - 197. http: // dx. doi. org / 10.1111 / j. 1439 - 0485.1981. tb 00093. x", "Boero, F. (1981 b) Bathimetric distribution of the epifauna of a Posidonia meadow of the Isle of Ischia (Naples): Hydroids. Rapports et Proces-Verbaux des Reunions Commision Internationale pour l'Exploration Scientifique de la Mer Mediterranee, Monaco, 27 (2), 197 - 198.", "Boero, F. (1981 c) Osservazioni ecologiche sugli idroidi de la fascia a mitili della Riviera Ligure di Levante. Cahiers de Biologie marine, 22 (1), 107 - 117.", "Garcia-Carrascosa, A. M. (1981) Hidrozoos tecados (Hydrozoa Calyptoblastea) del litoral mediterraneo espanol: faunistica, ecologia, bionomia bentonica y biogeografia. Tesis Doctoral Universidad Valencia, 464 pp.", "Fresi, E., Chimenz, C. & Marchio, G. (1982) Zonazione di Briozoi ed Idroidi epifiti in una prateria di Posidonia oceanica (L.) Delile. Naturalista siciliano, S. IV, VI (Supplement), 3, 499 - 508.", "Morri, C. & Bianchi, C. N. (1982) Contributo alla conoscenza degli idrozoi lagunari italiani: distribuzione di idropolipi lungo un gradiente ambientale nella laguna di Chioggia (Nord Adriatico). In: Atti XIV. Congresso della Societa Italiana di Biologia Marina. Bollettino dei Musei e degli Istituti Biologici dell'Universita di Genova, 50 (supplement), pp. 270 - 274.", "Bavestrello, G. (1985) Idroidi simbionti di paguri e gastropodi nella riviera Ligure di Levante. In: Atti del XVI. Congresso nazionale della Societa italiana di Biologia marina (Lecce, 25 - 30 Settembre 1984). Oebalia, New Series, 11 (1), pp. 349 - 362.", "Llobet, I., Gili, J. M. & Barange, M. (1986) Estudio de una poblacion de hidropolipos epibiontes de Halimeda tuna. Study of a population of epibiont hydropolyps on Halimeda tuna. Miscelanea Zoologica Barcelona, 10, 33 - 43.", "Llobet, I., Gili, J. M. & Hughes, R. G. (1991) Horizontal, vertical and seasonal distributions of epiphytic Hydrozoa on the alga Halimeda tuna in the northwestern Mediterranean Sea. Marine Biology Berlin, 110 (1), 151 - 159. http: // dx. doi. org / 10.1007 / bf 01313102", "Garcia-Rubies, A. (1987) Distribution of epiphytic hydroids on Posidonia sea grass. In: Bouillon, J., Boero, F., Cicogna, F. & Cornelius, P. F. S. (Eds.), Modern trends in the Systematics, Ecology and Evolution of Hydroids and Hydromedusae. Clarendon Press, Oxford, pp. 143 - 155. http: // dx. doi. org / 10.1017 / s 0025315400052255", "Garcia-Rubies, A. (1992) Habitat differentiation among epiphytic hydroids of the seagrass Posidonia oceanica from the Medes Islands (NE Catalonia, Spain). In: Bouillon, J., Boero, F., Cicogna, F., Gili, J. M. & Hughes, R. G. (Eds.), Aspects of hydrozoan biology. Scientia Marina, 56 (2 - 3), pp. 263 - 267.", "Goy, J., Lakkis, S. & Zeidane, R. (1988) Les Meduses de la Mediterranee orientale. Rapports et Proces-Verbaux des Reunions Commision Internationale pour l'Exploration Scientifique de la Mer Mediterranee, Monaco, 31 (2), 299.", "Goy, J., Lakkis, S. & Zeidane, R. (1990) Les Meduses de la Mediterranee orientale. In: Godeaux, J. (Ed.), A propos des migrations lessepsiennes. Bulletin de l'Institut Oceanographique de Monaco, No. Spec. 7, pp. 79 - 88.", "Goy, J., Lakkis, S. & Zeidane, R. (1991) Les meduses (Cnidaria) des eaux Libanaises. The medusae Cnidaria of Lebanese waters. Annales de l'Institut Oceanographique de Monaco, 67 (2), 99 - 128.", "Ramil Blanco, F. J. (1988) Hidrozoos de Galicia. Memoria que, para optar al Grado de Doctor en Biologia, presenta D. Francisco Ramil Blanco. Facultad de Biologia, Universidad de Santiago. Santiago de Compostela, 525 pp.", "Piraino, S. & Morri, C. (1990) Zonation and ecology of epiphytic hydroids in a Mediterranean coastal lagoon: the \" Stagnone of Marsala \" (Northwest Sicily). Pubblicazioni della Stazione Zoologica di Napoli, I. Marine Ecology, 11 (1), 43 - 60. http: // dx. doi. org / 10.1111 / j. 1439 - 0485.1990. tb 00227. x", "Morri, C., Bavestrello, G. & Bianchi, C. N. (1991) Faunal and ecological notes on some benthic cnidarian species from the Tuscan Archipelago and eastern Ligurian Sea (western Mediterranean). Bollettino dei Musei e degli Istituti Biologici dell'Universita di Genova, 54 - 55, 27 - 47.", "Roca, I., Moreno, I. & Barcelo, R. (1991) Distribucion espacial y temporal de los hidroideos de Posidonia oceanica (L.) Delile en una predera del Illot del Sec (Bahia de Palma, Baleares). Boletin del Instituto espanol de Oceanografia, 7 (1), 67 - 74.", "Morri, C., Cagnoli, E. & Bianchi, C. N. (1992) Distribuzione delle comunita marine bentiche tra La Spezia e Livorno. Atti IX. Congresso dell'Associazione Italiana di Oceanologia e Limnologia, 9, 363 - 377.", "Bianchi, C. N., Ceppodomo, I., Galli, C., Sgorbini, S., Dell'amico, F. & Morri, C. (1993 a) Benthos dei Mari Toscani. I: Livorno- Isola d'Elba (Crociera Enea 1985). In: Ferretti, O., Immordillo, F. & Damiani, V. (Eds.), Archipelago Toscano. Studio oceanografico, sedimentologico, geochimico e biologico. ENEA, Roma, Serie Studi Ambientali, pp. 263 - 290.", "Bianchi, C. N., Ceppodomo, I., Niccolai, I., Aliani, S., De Ranieri, S., Abbiati, M., Dell'amico F. & Morri, C. (1993 b) Benthos dei Mari Toscani. II: Isola d'Elba-Montecristo (Crociera Enea 1986). In: Ferretti, O., Immordillo, F. & Damiani, V. (Eds.), Archipelago Toscano. Studio oceanografico, sedimentologico, geochimico e biologico. ENEA, Roma, Serie Studi Ambientali, pp. 291 - 315.", "Benovic, A. & Lucic, D. (1996) Comparison of hydromedusae findings in the northern and southern Adriatic Sea. In: Piraino, S., Boero, F., Bouillon, J., Cornelius, P. F. S. & Gili, J. M. (Eds.), Advances in Hydrozoan Biology. Scientia Marina, 60 (1), pp. 129 - 135.", "Migotto, A. E. (1996) Benthic shallow-water hydroids (Cnidaria, Hydrozoa) of the coast of Sao Sebastiao, Brazil, including a checklist of Brazilian hydroids. Zoologische Verhandelingen Leiden, 306, 1 - 125.", "Mills, C. E., Pugh, P. R., Harbison, G. R. & Haddock, S. H. D. (1996) Medusae, siphonophores and ctenophores of the Alboran Sea, south western Mediterranean. In: Piraino, S., Boero, F., Bouillon, J., Cornelius, P. F. S. & Gili, J. M. (Eds.), Advances in Hydrozoan Biology. Scientia Marina, 60 (1), pp. 145 - 163.", "Piraino, S., Brandini, E., Denitto, F., Esposito, L. & Avian, M. (1999) La diversita degli Cnidari nella riserva marina di Ustica. Biologia Marina Mediterranea, 6 (1), 272 - 274.", "Medel, M. D. & Vervoort, W. (2000) Atlantic Haleciidae and Campanulariidae (Hydrozoa, Cnidaria) collected during the CANCAP and Mauritania-II expeditions of the National Museum of Natural History, Leiden, The Netherlands. Zoologische Verhandelingen Leiden, 330, 1 - 68.", "Benovic, A., Lucic, D., Onofri, V., Peharda, M., Caric, M., Jasprica, N. & Bobanovic-Colic, S. (2000) Ecological characteristics of the Mljet Island seawater lakes (South Adriatic Sea) with special reference to their resident populations of medusae. In: Mills, C. E., Boero, F., Migotto, A. & Gili, J. M. (Eds.), Trends in Hydrozoan Biology - IV. Scientia Marina, 64 (Supplement 1), 197 - 206. http: // dx. doi. org / 10.3989 / scimar. 2000.64 s 1197", "Benovic, A., Lucic, D., Onofri, V., Batistic, M. & Njire, J. (2005) Bathymetric distribution of medusae in the open waters of the middle and south Adriatic Sea during spring 2002. Journal of Plankton Research, 27 (1), 79 - 89. http: // dx. doi. org / 10.1093 / plankt / fbh 153", "Milos, C. & Malej, A. (2005) Gelatinous zooplankton assemblages in temperate coastal waters - seasonal variations (Gulf of Trieste, Adriatic Sea). Annales Series Historia Naturalis (Koper), 15 (1), 11 - 20.", "Batistic, M., Jasprica, N., Caric, M. & Lucic, D. (2007) Annual cycle of the gelatinous invertebrate zooplankton of the eastern South Adriatic coast (NE Mediterranean). Journal of Plankton Research, 29, 671 - 686. http: // dx. doi. org / 10.1093 / plankt / fbm 048", "Galea, H. R. (2007) Hydrozoa, La Ciotat and nearby areas, Mediterranean coast of France. Check List, 3 (3), 193