Dracunculus jaguape, Bel & Natalini & Notarnicola & Monje & Bel & Vallejos & Gavier & Kowalewski, 2023

Bel, María, Natalini, en, Notarnicola, Juliana, Monje, Lucas Daniel, Bel, Adriana, Vallejos, en, Gavier, Francisco Sanchez & Kowalewski, Martín Miguel, 2023, A new dracunculus species (Nematoda: Dracunculoidea) in neotropical otters (Lontra longicaudis) from Argentina: morphological and molecular characterization, International Journal for Parasitology: Parasites and Wildlife 22, pp. 234-242 : 236

3.1.1. Dracunculus jaguape n sp

General description: Body whitish, filiform, without any anterior constriction; anterior end rounded. Cuticle smooth. Peribuccal ring indistinct. Dorsal and ventral papillae projected anteriorly ( Fig. 3 b, d, e ). Male with needlelike spicules, gubernaculum present. Oesophagus consisting of a short, narrow anterior muscular portion, and a very long glandular portion (Table 2); the glandular oesophagus consists of a prominent swelling, anterior to nerve ring ( Fig. 3 a, c ). Deirids posterior to nerve ring. Excretory pore not observed.

Figures

Fig. 3. Dracunculus jaguape n. sp. (a) Anterior extremity of a male showing the oesophagus swelling, deirid and nerve ring. (b) Cephalic extremity, lateral view showing the cephalic papillae. (c) Anterior extremity of a gravid female. (d) Cephalic extremity, lateral view. (e) Detail of dorsal papillae, (f) Larvae with long and tapered tail, removed from the uterus. a: anus, d: deirid, ep: excretory pore, nr: nerv ring, s: glandular oesophagus swelling, o-i: oesophagus-intestine junction, p: papillae.