Cyclocoelum Brandes 1892

• Main Authors: Dronen, Norman O., Blend, Charles K.
• Format: Text
• Language: unknown
• Published: Zenodo 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Platyhelminthes; Trematoda; Plagiorchiida; Cyclocoelidae; Cyclocoelum; Indian; Sinha; Common Sandpiper
• Online Access: https://dx.doi.org/10.5281/zenodo.6108925; https://zenodo.org/record/6108925

Key to the species of Cyclocoelum Brandes, 1892 1 a. Rudimentary oral sucker absent.......................................................................... 2 1 b. Rudimentary oral sucker present........................................................................ 4 2 a. Uterus largely intercecal, posterior loops not reaching posterior margin of posterior testis.............................................................................. C . mutabile (Zeder, 1800) (Syn. C. microstomum Creplin, 1829) 2 b. Uterine loops extensively overlapping the ceca laterally reaching nearly to body wall; posterior loops reaching posterior mar- gin of posterior testis................................................................................. 3 3 a. Pharynx relatively wide, more than 1,000 µm; intertesticular space long, more than 2,500 µm, about 14 % of body length.................................................................................. C . robustum Stossich, 1902 3 b. Pharynx relatively narrow, 80–130 µm; intertesticular space relatively short, 1,500 µm or less, about 8 % of body length................................................................................. C . microcotyleum Noble, 1933 4 a. Uterine loops commonly overlapping ceca laterally.................................... C . macrorchis Harrah, 1922 4 b. Uterus largely intercecal............................................................................... 5 5 a. Eggs relatively large, greater than 130 µm long........................................ C . obscurum (Leidy, 1887) 5 b. Eggs relatively small, less than 130 µm long............................................................... 6 6 a. Eggs exceptionally small, 90–93 µm x 47 –49 µm...................................... C . bikanerensis Gupta, 1964 6 b. Eggs more moderately sized, 102 µm x 51 µm or larger...................................................... 7 7 a. Cirrus sac relatively long, 1,200 µm or more, 8 % or more of body length........... C . pseudomicrostomum Harrah, 1922 7 b. Cirrus sac relatively short, 700 µm or less, 5 % or less of body length........................................... 8 8 a. Intertesticular space relatively short, 450–880 µm long, about 2–8 % of body length................................................................................. C . leidyi Harrah, 1922 (Syn. Cyclocoelum cuneatum Harrah, 1922) 8 b. Intertesticular space relatively long, 3,000–5,800 µm, about 13–16 % of body length.................................................................................. C . mehrotrai Sinha & Sahay, 1975 (Syn. C . mathuri Jain, 1984) : Published as part of Dronen, Norman O. & Blend, Charles K., 2015, Updated keys to the genera in the subfamilies of Cyclocoelidae Stossich, 1902, including a reconsideration of species assignments, species keys and the proposal of a new genus in Szidatitreminae Dronen, 2007, pp. 1-100 in Zootaxa 4053 (1) on page 18, DOI: 10.11646/zootaxa.4053.1.1, http://zenodo.org/record/237117 : {"references": ["Brandes, G. P. H. (1892) Revision der Monostomiden. Centralblatt fur Bacteriologie und Parasitenkunde, 12, 504 - 511.", "Zeder, J. G. H. (1800) Erster Nachtrag zur Naturgeschichte der Eingeweidewumer mit zufassen und Anmerkungen. Herausgegeben von Johann Georg Heinrich Zeder. Siegfried Liver-genuinly Crusius, Leipzig, Germany, 320 pp.", "Creplin, F. C. (1829) Novae observationes de Entozois. Apud Ferdinandum Dummlerum, Berolini, 134 pp.", "Stossich, M. (1902) Monostomum mutabile Zeder e le sue forme affini. Bollettino della Societ'a Adriatica di Scienz Naturali in Trieste, 21, 1 - 40.", "Noble, A. E. (1933) Two new trematodes from the American coot. Transactions of the American Microscopical Society, 52, 353 - 360. http: // dx. doi. org / 10.2307 / 3222419", "Harrah, E. C. (1922) North American monostomes primarily from freshwater hosts. Illinois Biological Monographs, 7, 162 - 165.", "Leidy, J. (1887) Notice of some parasitic worms. Proceedings of the Academy of Sciences of Philadelphia, 39, 20 - 24.", "Gupta, N. K. (1964) Fauna of Rajasthan, India Part 8 - Trematoda. Zoological Survey of India, Calcutta, 62, 171 - 190.", "Sinha, A & Sahay, U. (1975) On a new species of the genus Cyclocoelum Brandes, 1892 (Cyclocoelidae, Cyclocoelinae) from the body cavity of a water bird, Glottis nebularia. Indian Journal of Helminthology, 27, 5 - 10.", "Jain, S. P. (1984) Cyclocoelum mathuri n. sp. (Trematoda: Cyclocoelidae) from the common sandpiper, an avian host of India. Bulletin of Pure and Applied Sciences, 3 a, 18 - 21."]}