Paramononchus
Paramononchus Mulvey, 1978 (ref. ID; 5938 original paper)
Family Mononchidae (ref. ID; 5938)
ref. ID; 5938
Definition
Buccal cavity longer than wide, walls thick. Dorsal tooth situated in anterior third of buccal cavity, opposed by a short denticulate rib with two small subventral teeth at the posterior (base) of this rib. Buccal cavity with a transverse rib at the level of the dorsal tooth apex. Esophagintestinal junction nontuberculate. Female didelphic, ovaries reflexed. Tail long, uniformly cylindroid tapering to a blunt indeted terminus. Caudal glands present. Male unknown. (ref. ID; 5938)
Differential diagnosis
Paramononchus n. gen. is closest to Mononchus Bastian, 1865 but differs significantly from this genus in the structure of the buccal cavity and tail terminus. (ref. ID; 5938)
Type species
Paramononchus arcticus Mulvey, 1978 (ref. ID; 5938)
- Paramononchus arcticus Mulvey, 1978 (ref. ID; 5938 original paper)
Descriptions
Female: Buccal cavity about twice as long as wide, walls fairly thick. Dorsal tooth large, apex 80-83% from base of cavity. Tooth opposed by a short denticulated rib with two small subventral teeth at its base. A transverse rib extends from the ventral wall of the buccal cavity and at the level of the dorsal tooth apex. Esophagointestinal junction nontuberculate. Female didelphic, amphidelphic without spermatheca and sphincter muscle between uterus and oviduct. Ovaries reflex to nearly level of vulva. Vulva plates small, papillate absent. Tail long, uniformly cylindroid tapering to a blunt terminus. Tail tip indented. Caudal glands three. Population consisted of 30 females. (ref. ID; 5938)
Male: Unknown. (ref. ID; 5938)
Examined materials
Holotype: L=3.5 mm, a=44, b=4.4, c=10.3, V=54, buccal cavity 44x20 µm, tail length 340 µm, collection No.6811, CNCN, type slide No.238 deposited in the CNCN Ottawa, Ontario, Canada. (ref. ID; 5938)
Paratypes: Ten females, deposited in the CNCN Ottawa, Canada. Collection Nos.6811, 6812, 6813, and 6853. (ref. ID; 5938)
Measurements
Female: L=3.7(3.5-4.0) mm, a=42(40-44), b=4.3(3.9-4.7), c=10.4(9.0-11.3), V=50-54, buccal cavity 44-48x19-21 µm, tail length 350(300-400) µm, eggs 105-110x60-80 µm (n=9). (ref. ID; 5938)