Pesquisas helmintológicas realisadas no Estado do Pará; VIII - Camallanus amazonicus n. sp. parasito de Podocnemis expansa (Schw.)

Nematode parasites of the turtle Pelusios sinuatus (pelomedusidae: Pleurodira) from southern Africa

“…has been assigned to the genus Camallanus because there is a large median ridge in the buccal valves of all specimens examined and the ridges are not clearly divided into dorsal and ventral groups. However, the large median ridge tends to be slightly separated at its base from the other ridges and in this the species is comparable to Serpinema and, in particular, the species S. amazonicus (Ribeiro, 1941) from Podocnemis expansa of Brazil. In S. amazon# cus the ridges in the buccal valves are longest on the dorsal and ventral sides but there is a series of four to five median ridges, at least one of which approaches the size of the long peripheral ones (Ribeiro, 1941).…”

New species of Serpinema (Nematoda: Camallanidae) from the scorpion mud turtle Kinosternon scorpioides (Testudines: Kinosternidae) from eastern Amazon, Brazil

“… Species Serpinema pelliculatus n. sp . Serpinema amazonicus Serpinema cayannensis Serpinema intermedius Reference This study Ribeiro (1941) Harnoster et al (2019) Hsu and Hoeppli (1931) Type host Kinosternon scorpioides Podocnemis expansa Rhinoclemmys punctularia Mauremys reevesi Type locality Brazil Brazil French Guiana China Number of ridges in valves 9–11 17–20 8–11 10 Pairs of male caudal papillae 15 9 13 14 Total length (mm) ♂ 6.07–8.20 ♂ 11.95 ♂ 9.7–12.2 ♂ 5.65–7.90 ♀ 8.05–9.91 ♀ 15.08–17.92 ♀ 13.7–18.5 ♀ 11.05–12.10 Width at mid-body ♂ 173–240 ♂ 400 ♂ 332–477 ♂ 200–230 ♀ 227–333 ♀ 530–680 ♀ 487–688 ♀ 165–175 Buccal capsule ♂ 60–91 × 95–109 ♂ 170 × 180 ♂ 129–150 × 170–203 ♂ 130–150 a ♀ 84–100 × 97–119 ♀ 204–208 × 226–239 ♀ 121–179 × 213–245 ♀ 110...…”

Camallanus emydidius n. sp. (Nematoda: Camallanidae) in Trachemys dorbigni (Duméril & Bibron, 1835) (Testudines: Emydidae) from Southern Brazil

“…It is possible that S. amazonicus , S. monospiculatus , S. magathi and Serpinema trispinosus (Leidy, 1852) belong to Camallanus due to the morphology of the buccal capsule as shown by Ribeiro, 1940 , Freitas et al., 1971 , Baker, 1979 and Moravec and Vargas-Vázquez (1998) . In the description made by these authors, it was observed that there is no complete separation between the dorsal and ventral groups of longitudinal ridges in the buccal valves, there being a median group with variation in size (length) of the ridges ( Ribeiro, 1940 , Freitas et al., 1971 , Baker, 1979 , Moravec and Vargas-Vázquez, 1998 ), as observed in specimens of C. emydidius n. sp. On the other hand, we observe in the description of Serpinema microcephalus (Dujardin, 1845) by Baker (1979) a clear separation between the dorsal and ventral group of ridges according to the characterization of Serpinema proposed by Yeh (1960) .…”

“… Species Host Distribution References Serpinema kachugae (Baylis & Daubney, 1922) Kinosternon scorpioides (Kinosternidae) Venezuela Díaz-Ungría (1978) Serpinema magathi ( Sprehn, 1932 ) Kinosternon integrum (Kinosternidae) Bolivia Sprehn (1932) Brazil Freitas et al. (1971) Serpinema amazonicus ( Ribeiro, 1940 ) Podocnemis expansa (Podocnemididae) Brazil Ribeiro (1940) Serpinema monospiculatus Freitas & Dobbin Jr., 1962 Mesoclemmys turbeculata (Chelidae) Mesoclemmys nasuta (Chelidae) Phrynops geoffroanus (Chelidae) Brazil Freitas et al. (1971) Phrynops geoffroanus (Chelidae) Brazil Silva (2014) Camallanus sp.…”