Dispharynx nasuta (Rudolphi, 1819)

Syrota, Ya. Yu., Kharchenko, V. O., Lyaskivskiy, V. N., Kobylinsky, V. V. & Vasylkivska, I. B., 2015, Finding Of Two Species From The Tribe Synhimantea (Nematoda, Acuariidae) In The Kyiv Zoological Park, Vestnik Zoologii 49 (6), pp. 483-488 : 487

Dispharynx nasuta (third-stage larvae)

H o s t: Oniscidea spp. (Isopoda)

L o c a l i t y: Kyiv, Ukraine

S i t e o f i n f e c t i o n: body cavity

Morphology (n = 10). Body length 3.2–3.6 (3.4) mm, maximum body width 89–129 (113) µm. Two pseudolabia on slightly rounded anterior end of body. Four short cordons beginning posterior to pseudolabia. Shape of buccal capsule similar to that in adult nematodes ( fig 1 , 3). Buccal capsule 50–69 (56) µm long. Distance from anterior end of body to nerve ring 89–129 (113) µm, to excretory pore 158–297 (216) µm. Esophagus divided in two parts: muscular and glandular. Muscular part 267–317 (292) µm long, glandular part 1.0–1.2 (1.1) mm. Tail 129–158 (143) µm long ( fig. 1 , 4).

Microscopic studies were done using the equipment of the Centre of collective use of scientific equipment “Animalia” (Institute of Zoology, NAS of Ukraine). We are sincerely grateful to the Kyiv Zoological Park for materials provided for the study.

Figures

Fig. 1. De. sagitattus and Di. nasuta: 1 — anterior end of De. sagitattus; 2 — anterior end of Di. nasuta; 3 — anterior end of the larva Di. nasuta; 4 — posterior end of the larva Di. nasuta; pl — pseudolabia, bc — buccal capsule, cp — cervical papilla, nr — nerve ring, c — cordons, em — muscular esophagus, eg — glandural esophagus; a — anal pore. Scale bar 100 µm.