Aplectana membranosa (Schneider, 1866) Miranda, 1924

Aguiar, Aline, Morais, Drausio Honorio, Firmino Silva, Lidiane A., Anjos, Luciano Alves Dos, Foster, Ottilie Carolina & Silva, Reinaldo José Da, 2021, Biodiversity of anuran endoparasites from a transitional area between the Atlantic Forest and Cerrado biomes in Brazil: new records and remarks, Zootaxa 4948 (1), pp. 1-41 : 9

Aplectana membranosa (Schneider, 1866) Miranda, 1924

Hosts (prevalence; range): B. raniceps (1/79; 1), S. fuscovarius (1/51; 3), T. typhonius (2/16; 2–1301), L. chaquensis (21/143; 1–311), L. fuscus (11/50; 9–426), L. latrans (9/20; 6–514), Leptodactylus mystacinus (Burmeister) (8/8; 37–447), L. podicipinus (16/225; 1–72), and P. centralis (2/35; 2–6).

Site of infection: stomach, small and large intestines.

Stage: adult.

Type host and type locality: Leptodactylus latrans (= Leptodactylus ocellatus ), Manguinho, Rio de Janeiro State, Brazil.

Comments: this nematode was redescribed by Miranda (1924) and later by Travassos (1925) in L. latrans from Brazil. Both studies presented morphological characters such as the position of a large excretory pore in the level of the junction between esophagus and bulb, mouth with three lips presenting two papillae each one, vulva after from the median level of body, long and slender spicules with a forked distal extremity, and males presenting conic tail with variable number of papillae. Papillae composition presented by Miranda (1924) was five precloacal, two adcloacal and four pairs postcloacal which one was duplicate near to cloaca. Travassos (1925) found three pairs and a single papilla precloacal, two lateral series of precloacal papillae, two adcloacal, and four pairs postcloacal. We found these characters in the most of specimens, except the number of labial and caudal papillae which varied among the specimens; for observation of these caudal papillae, a better preservation of specimens is required as well as the use of a Scanning Electron Microscope. Even though several leptodactylids species have been reported as hosts of this cosmocercid (Campi„o et al. 2014; Lins et al. 2017; Silva et al. 2019), this study reveals five leptodactylids ( L. chaquensis , L. fuscus , L. mystacinus , L. podicipinus , and P. centralis ) as new records and three hylids species ( B. raniceps , S. fuscovarius , and T. typhonius ) which was not reported as host of A. membranosa .