Anoplodactylus batangensis Helfer 1938

• Main Authors: Lucena, Rudá Amorim, Araújo, Joafrâncio Pereira De, Christoffersen, Martin Lindsey
• Format: Text
• Language: unknown
• Published: Zenodo 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Pycnogonida; Pantopoda; Phoxichilidiidae; Anoplodactylus; Anoplodactylus batangensis; Pacific; Tonga; Seta; Barra; Hilton; Christoffersen; Juv; North Atlantic
• Online Access: https://dx.doi.org/10.5281/zenodo.3508883; https://zenodo.org/record/3508883

Anoplodactylus batangensis (Helfer, 1938) (Figs 1–5) Pycnosoma batangense Helfer, 1938: 174. Anoplodactylus intermedius Hilton, 1942: 44. Anoplodactylus stylirostris Hedgpeth, 1948: 232. Anoplodactylus tenuirostris Lebour, 1948: 929. Examined material: Paraíba: (UFPB.PYC–008), 5 ♂, 3 ♀, Barra de Mamanguape, 11 Aug 2010, coll. PBP; (UFPB.PYC–028), 1 ♂, 2 ♀, Baía da Traição, 0 9 Aug 2010, coll. PBP; (UFPB.PYC–034), 1 ♂, 1 juv., Tambaba, 30 Aug 2011, coll. PBP; (UFPB.PYC–043), 1 ♂, Jacumã, 29 Jan 2010, coll. PBP; (UFPB.PYC–053), 1 ♂, Pitimbu, 16 Sep 2005, coll. C.H. Targino. Pernambuco: (UFPB.PYC–097), 1 ♀, Praia dos Carneiros, 22 Jun 2013, coll. PBP; (UFPB.PYC– 119), 4 ♀, Recife de Itamaracá, 15 Dec 2012, coll. PBP. Description of male (UFPB.PYC–008): Trunk without segmentation between 3 rd and 4 th segments. Proboscis styliform, distal region upturned. Lateral processes separated by half of their diameter; with dorsal median tubercle, and one seta on each side of the tubercle. Ocular tubercle shorter than abdomen, basis larger than top; top trilobed; eyes well marked. Abdomen with four subapical setae (figs 1 and 2). Cheliphores slender, reaching tip of proboscis. Scape single-jointed, with four setae, one of them large, on the median distal margin; other setae lateral to scape, two being ventral and one dorsal. Chelae with short, curved, and smooth fingers; movable finger with two setae on outer margin (fig 3). Oviger 6 -articled (fig 4). 1 st article as large as long, without seta. 2 nd article half size of 3 rd, but two times larger than 3 rd. 3 rd article longest, with a constriction near the basis. 4 th as long as 5 th and 6 th together. 5 th and 6 th with several recurved setae. 5 th with two long setae near distal margin. 6 th article shortest and cone-shaped. Robust legs (fig 5). Coxa 1 of same length as coxa 3, but with four small tubercles with apical setae. Coxa 2 of same length as coxae 1 and 3 together; with a short tubercle in dorso-median region; short spur on legs 3 and 4. Femur is the longest and most robust article; it has a tubercle with an apical seta in terminal region. Cement gland duct in dorso-median position on femur, formed by a tube almost three times as long as its diameter, distally narrow and with transversal rings (detail of fig 5). Tibia 1 to 1,5 times longer than tibia 2; this is provided with a long seta on the distal margin, and three small tubercles, each one with an apical seta. Tibia 2 shorter than propodus, with two small tubercles with apical seta. Tarsus triangle-like, with a seta on dorsal surface, and two ventrally. Propodus with a strong heel, forming an obtuse angle with sole, distally with a robust spine turned upwards, and four smaller spines turned towards the sole; sole with five smaller spines and few setae (detail of fig 5). Main claw curved, 2 / 3 of the propodus length, without auxiliaries. Measurements (Male—mm): length of trunk, 0.72; width of trunk (measured over first lateral process), 0.53; length of abdomen: 0.17; length of proboscis: 0.38; length of scape of cheliphore: 0.18; length of chela: 0.14; length of articles of 3 rd leg—coxa 1, 0.11; coxa 2, 0.23; coxa 3, 0.15; femur, 0.39; tibia 1, 0.33; tibia 2, 0.23; tarsus, 0.1; propodus, 0.31; main claw, 0.21. Depth: 0– 40m. Distribution: Pantropical. Brazil (Bahia, Pernambuco, Paraíba); Venezuela to USA (Florida); Australia; Tonga; New Caledonia; Sulu Sea; Philippines; Panama (Pacific). Comments: The species has a unique proboscis in the genus (Stock, 1994; Arango, 2003). It is elongate and curved upwards, without ornamentation in the female (Child, 1996; Bamber, 2000). According to Müller & Krapp (2009) this species is close to Anoplodactylus marshallensis Child, 1982 and Anoplodactylus squalidus Clark, 1973, differing from both by the less robust proboscis, from the first species by the presence of a cutting lamella in the distal region of the sole of the propodus, and from the second species by the shorter tube of the cement gland, which has transversal rings (Müller & Krapp, 2009). This is the first record of the species for Brazil. There is material in the Smithsonian Museum (USNM 125453) from Pernambuco identified as A. batangensis by Allan Child in 1968, but we did not have access to this material. Individuals of A. batangensis are found in coral reefs and are probably not restricted to the States of Paraíba and Pernambuco. : Published as part of Lucena, Rudá Amorim, Araújo, Joafrâncio Pereira De & Christoffersen, Martin Lindsey, 2015, A new species of Anoplodactylus (Pycnogonida: Phoxichilidiidae) from Brazil, with a case of gynandromorphism in Anoplodactylus eroticus Stock, 1968, pp. 428-444 in Zootaxa 4000 (4) on pages 430-432, DOI: 10.11646/zootaxa.4000.4.2, http://zenodo.org/record/234661 : {"references": ["Hedgpeth, J. W. (1948) The Pycnogonida of the western North Atlantic and the Caribbean. Proceedings of the United States National Museum, 97 (3216), 157 - 342. http: // dx. doi. org / 10.5479 / si. 00963801.97 - 3216.157", "Stock, J. H. (1994) Indo-west pacific Pycnogonida collected by some major oceanographic expeditions. Beaufortia, 44, 17 - 77.", "Arango, C. P. (2003) Sea spiders (Pycnogonida, Arthropoda) from the Great Barrier Reef, Australia: new species, new records and ecological annotations. Journal of Natural History, 37, 2723 - 2772. http: // dx. doi. org / 10.1080 / 00222930210158771", "Child, C. A. (1996) Pycnogonida of the western Pacific islands, XIII. Collections from Indonesia, Melanesia, and Micronesia. Proceedings of the Biological Society of Washington, 109 (3), 540 - 559.", "Bamber, R. N. (2000) Pycnogonida: Pycnogonids from French cruises to New Caledonia, Fiji, Tahiti and the Marquesas. New records and new species. Resultats des Campagnes MUSORSTOM, vol. 21. Memoires du Museum National d'Histoire Naturalle, 184, 611 - 625.", "Muller, H. G. & Krapp, F. (2009) The pycnogonid fauna (Pycnogonida, Arthropoda) of the Tayrona National Park and adjoining areas on the Caribbean coast of Colombia. Zootaxa, 2319, 1 - 138."]}