Cervonemella kaimanaensis, Dewi & Purwaningsih, 2020

Dewi, Kartika & Purwaningsih, Endang, 2020, Three new species of Cloacininae (Nematoda: Strongyloidea) parasitic in Dorcopsis muelleri (Schlegel, 1866) from Papua and Salawati Island, Indonesia, Zootaxa 4747 (3), pp. 535-546 : 541

Cervonemella kaimanaensis sp. nov.

Type host: Dorcopsis muelleri (Lesson) (Mammalia: Macropodidae ).

Type locality: District Kaimana , West Papua, Indonesia (1°6S, 130°51 E) .

Site of infection: Stomach.

Type specimens: Holotype male, allotype female (MZBNa 829); paratypes, males and females (MZBNa 830).

Date of collection: November 2014.

Etymology: This species is named after the district in which the host was found.

General— Small nematodes with transverse cuticular annulations, 10.6–10.8 apart. Cervical cuticle slightly inflated to beyond level of excretory pore. Cephalic collar present. Cephalic extremity with 2 lateral amphids and 4 prominent submedian papillae. Mouth opening surrounded by 8 leaf crown elements. Submedian cephalic papillae prominent, 4.6 long, projecting anteriorly then laterally from peri-oral cuticle; proximal segment 3.5 long, longer than ovoid distal segment, 1.1 long. Esophagus slender, elongate, and simple, posterior end forming elevated bulb and surrounded by intestinal diverticula. Deirids at the anterior of nerve ring, filiform, 85 long.

Male (n=10)—Total body length 6.60 (5.25–7.75) mm, maximum width in mid body 296 (230–350). Buccal capsule 18 (13–20) deep, 17 (11–18) wide. Esophagus length 729 (640–870) long. Deirids, nerve ring, and excretory pore from cephalic end 118 (85–145), 284 (213–350), and 372 (330–420) respectively. Bursa wider than long. Dorsal ray broad at origin, narrowing posteriorly; external branchlets arising at ½ length; immediately before major bifurcation; as long as internals, though more robust, not reaching margin of bursa. Externodorsal ray arising close to lateral rays, not reaching margin of bursa. Posterolateral and ventrolateral rays fused, reaching margin of bursa Anterolateral ray divergent, not reaching margin of bursa. Ventrolateral and ventroventral rays fused, reaching margin of bursa, longer than other rays. Spicule simple with blunt, slightly curved tips with prominently ribbed alae terminating anterior to tip, length 2.40 (2.10–2.86) mm. Gubernaculum heavily sclerotised, ovoid in shape 21 (20–23) long x 34 (30–38) wide.

Female (n=34)—Total body length 7.37 (6.27–8.74) mm, maximum width in mid body 349 (220–410). Buccal capsule 17 (13–20) deep x 18 (15–20) wide. Esophagus 759 (650–900) long. Deirids, nerve ring, and excretory pore from cephalic end 126 (98–140), 275 (205–348), and 383 (325–480), respectively. Tail short, simple, conical 243 (220–282) long. Vulva 344 (320–390) from posterior end. Vagina vera length 1.16 (1.10–1.22) mm, vagina uterina 220, sphincter 292, infundibulum 152.