Trypanorhyncha from sharks of southern brazilian coast: Eutetrarhynchus vooremi sp. n. and two other species parasites of Mustelus (Pisces, Triakidae)

Abstract

In the present paper, Eutetrahynchus vooremi sp. n., a cestode of the order Trypanorhyncha is proposed. The new species was recovered from sharks under the genus Mustelus (Pisces, Triakidae) and was compared to E. ruficollis, E. lineatus, E. leucomelanus, E. litocephalus and E. macrotrachelus. The main character, among others, considered to differ the species refers to the eggs filament, size of proglottids, tentacular hooks and lenght of pars postbulbosa. Two other known species are studied: Callitetrarhynchus gracilis (Rudolphi, 1819) from M. canis (Mitchill, 1815) and Nybelinia (N.) lingualis (Cuvier, 1817) from M. schmitti Springer, 1939 representing new host records

Trypanorhynch Cestodes of Commercial Fishes from Northeast Brazilian Coastal Waters

“…Five of the trypanorhynchs detected during this study are common for both localities , Palm et al 1994. Considering the records of N. lingualis, N. rougetcampanae, Poecilancistrum caryophyllum and Tentacularia coryphaenae of the South Brazilian coast, 9 trypanorhynchs have been described from both, the Brazilian and the West African coast (Dollfus 1935, BaudinLaurencin 1971, Rego 1977, Pereira et al 1982, São Clemente & Gomes 1989b, 1992, Palm et al 1994.…”

Eutetrarhynchid trypanorhynchs (Cestoda) from elasmobranchs off Argentina, including the description of Dollfusiella taminii sp. n. and Parachristianella damiani sp. n., and amended description of Dollfusiella vooremi (São Clemente et Gomes, 1989)

“…There are some differences in the terminology used to define hook morphology in the original description and the present study, such as, for example, the subtriangular hooks with enlarged base on the external surface mentioned by São Clemente and Gomes (1989a). We assume that these hooks are uncinate based on figures 2 and 3 in São Clemente and Gomes (1989a).…”

“…We assume that these hooks are uncinate based on figures 2 and 3 in São Clemente and Gomes (1989a). Also, the uncinate hooks of the basal swelling are not mentioned in the original description, but can be observed in their figures 2 and 3 (São Clemente and Gomes 1989a).…”

“…Plata and from Sympterygia bonapartii Müller et Henle off Bahía Blanca in Argentina (São Clemente and Gomes 1989a, Tanzola et al 1998, Alarcos et al 2006. Also a plerocercus of an unidentified species of Dollfusiella was reported from the teleost Micropogonias furnieri (Desmarest) in Brazil (Pereira and Boeger 2005).…”

“…Although the eutetrarhynchids are well represented in a diverse array of hosts worldwide, only a few records exist from the southwestern Atlantic, all belonging to species of Dollfusiella. Dollfusiella vooremi (São Clemente et Gomes, 1989) 1989a, Tanzola et al 1998, Alarcos et al 2006. Also a plerocercus of an unidentified species of Dollfusiella was reported from the teleost Micropogonias furnieri (Desmarest) in Brazil (Pereira and Boeger 2005).…”