Systematics of Onchocleidus Mueller, 1936 (Monogenea: Ancyrocephalidae): generic revision

Author:

Wheeler Terry A.,Beverley-Burton Mary

Abstract

The genus Onchocleidus Mueller, 1936 (Monogenea: Ancyrocephalidae) is revised. Diagnostic characters for the genus include a dextral vaginal opening, a spiral filament encircling the penis, and dorsal hamuli with reduced deep roots. Haplocleidus Mueller, 1937 and Pterocleidus Mueller, 1937 are declared junior synonyms of Onchocleidus. Onchocleidus, as presently recognized, contains 24 valid species: O. ferox (Mueller, 1934) Mueller, 1936 (type species); O. acer Mueller, 1936; Onchocleidus affinis (Mueller, 1937) n.comb.; O. attenuatus (Mizelle, 1941) Beverley-Burton, 1984; Onchocleidus chaenobryttus (Mizelle and Seamster, 1939) n.comb.; O. chautauquaensis (Mueller, 1938) Murith and Beverley-Burton, 1984; O. chrysops (Mizelle and Klucka, 1953) Beverley-Burton, 1984; O. cyanellus Mizelle, 1938; O. dispar Mueller, 1936; O. distinctus Mizelle, 1936; Onchocleidus doloresae (Hargis, 1952) n.comb.; Onchocleidus flieri (Putz and Hoffman, 1966) n.comb.; Onchocleidus furcatus (Mueller, 1937) n.comb.; Onchocleidus grandis (Mizelle and Seamster, 1939) n.comb.; O. interruptus Mizelle, 1936; Onchocleidus macropterus (Harrises, 1962) n.comb.; O. mimus Mueller, 1936; Onchocleidus miniatus (Mizelle and Jaskoski, 1942) n.comb.; Onchocleidus nactus (Mayes and Johnson, 1975) n.comb.; Onchocleidus parvicirrus (Mizelle and Jaskoski, 1942) n.comb.; O. principalis Mizelle, 1936; O. similis Mueller, 1936; Onchocleidus tuberculatus (Allison and Rogers, 1970) Cloutman, 1988; and Onchocleidus variabilis (Mizelle and Cronin, 1943) n.comb. Six species (O. acuminatus Mizelle, 1936; Pterocleidus biramosus Mueller, 1937; O. helicis Mueller, 1936; O. perdix Mueller, 1937; O. spiralis Mueller, 1937; and Urocleidus wadei Seamster, 1948) are considered species inquirendae. A key to the species of Onchocleidus is included.

Publisher

Canadian Science Publishing

Subject

Animal Science and Zoology,Ecology, Evolution, Behavior and Systematics

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