Petrovinema skrjabini (Ershov, 1930) Ershov, 1943

Figures

Synonyms: Trichonema skrjabini Ershov, 1930; Cylicostephanus skrjabini (Ershov, 1930) Lichtenfels, 1975.

General: Tip of submedian papillae bullet-shaped, 2-3 times as long as thick. ELC consists 28 elements ILC -80. Tips of elements of ILC pointed. Medial insertion of septum intracoronare situated anteriorly to junction of ELC and ILC. Buccal cavity cylindrical, as deep as wide.

Male: Body length 14.2-14.3 mm. Esophagus length 672-756. BC width 132-216, depth 141-150, distance from anterior deirids to head end 694, from excretory pore— 616, from NR — 482-515, spicules lengh 1.4-1.43 (1.207-1.250) mm. Gubernaculum length 267-270. Dorsal ray length 560-644. Dermal collar well developed around genital cone. Appendages of genital cone— pair nipple-shaped formations. Protrusions of dermal collar wide and round, porly developed

Female: Body length 15.4-18.7 (14.2 (Ershov, 1930)) mm, length of esophagus 700-790, width of BC 135-162, depth 144-165, distance from anterior deirids to head end 700-778, from excretory pore — 666-762, from NR —498-538, vagina length 291-392, distance from vulva to tail tip 347-459, from anus to tail tip — 179-280. eggs size 117-130x52-56.

Hosts: Equus caballus, E. asinus.

Locality: cecum, colon.

Distribution: Asia.