Nematophila venezuelensis ( Cordero & Vogelsang, 1940 ) Cordero & Vogelsang, 1940

Lenis, Carolina & Vélez, Imelda, 2011, Digeneans in Trachemys callirrostris callirostris and Podocnemis lewyana (Testudinata) from the Magdalena River, Colombia: description of Pseudonematophila n. gen. and amendment of Nematophila Travassos, 1934 (Cladorchiidae: Schizamphistominae), Zootaxa 3095, pp. 49-62 : 56

Nematophila venezuelensis ( Cordero & Vogelsang, 1940) n. comb.

( Fig. 5 ).

(syn. Allassostoma venezuelensis Cordero & Vogelsang, 1940 ) Host: Podocnemis lewyana

Site of infection: Stomach

Localities: San Nicolás (9° 8'17.20"N; 74°38'59.42" O); Ricaurte (9°7'7.63"N; 74°11'40.83" O).

Accesion numbers: CCH.116 (113; 130; 131)

Redescription: Based on 12 individuals. Body large, oval, maximum width at level of posterior testis, 9.42– 22.11 (15.60 ± 5.07) long by 4.82–8.56 (6.46 ± 1.46) wide. Pharynx 0.92–1.83 (1.31 ± 0.36) long by 0.74–1.24 (0.95 ± 0.18) wide; intramural pharyngeal sacs. Esophagus large, 1.65–2.81 (2.14 ± 0.55) long by 0.42–0.92 (0.63 ± 0.17) wide; esophageal bulb 0.76–1.33 (1.17 ± 0.21) long by 0.52–0.62 (0.57 ± 0.04) wide. Testes branched, tandem, in mature individuals may be overlap areas with little space between them and overlap caeca laterally, anterior testis equatorial 0.66–3.96 (2.26 ± 1.17) long by 1.24–3.98 (3.07 ± 0.97) wide; posterior testis postequatorial 1.63–3.63 (2.37 ± 1.04) long by 1.39–3.84 (2.93 ± 1.22) wide. Cirrus–sac circular, small, immediately postbifurcal, 0.80–0.90 (0.85 ± 0.07) long by 0.70–0.84 (0.77 ± 0.10) wide. Vitelline follicles in two lateral extracaecal fields from level of oesphageal bulb to level of acetabulum. Ovary round to oval, small to medium, smooth contour, intercaecal to level of caecal ends, 0.16–0.40 (0.32 ± 0.09) long by 0.23–0.31 (0.25 ± 0.03) wide. Uterus intercaecal, dorsal to testes. Eggs numerous, 109.8–149 (131.15 ± 10) long by 78.43–94.12 (83.66 ± 6.59) wide. Acetabulum round, small compared to the body, terminal, 1.29–2.01 (1.66 ± 0.30) long by 1.41–2.11 (1.76 ± 0.28) wide.

Figures

FIGURE 5. Nematophila venezuelensis n. comb. a. Mature specimen collected from P. l e w y a n a, Colombia; pharyngeal sacs intramural and testes in tandem. Scale 2 mm. b-c. Details of genitalia, sagital section, scale 0.8 mm.