Trypanorhynch cestodes (Eutetrarhynchidae) from batoids along the coast of Argentina, including the description of new species in Dollfusiella Campbell et Beveridge, 1994 and Mecistobothrium Heinz et Dailey, 1974.

摘要: During a recent parasitological survey of elasmobranchs along the coast Argentina, two new species eutetrarhynchid cestodes genera Dollfusiella Campbell et Beveridge, 1994 and Mecistobothrium Heinz Dailey, 1974 were collected from batoids. acuta sp. n. was found in four arhynchobatid skates, i.e. Sympterygia Garman (type host), bonapartii Muller Henle, Atlantoraja castelnaui (Miranda Ribeiro) platana (Gunther), oblongum eagle ray Myliobatis goodei Garman. has tentacular armature consisting basal rows uncinate hooks, distinct swelling with uncinate, falcate bill heteroacanthous metabasal heteromorphous hooks (bothrial antibothrial hooks), 1(1') not separated, testes columns an internal seminal vesicle. The M. is characterised by typical (uncinate to spiniform), separated constant size tentacle. It also possesses elongate scolex, numerous arranged 5-6 irregular columns, discovery represents first record southwestern Atlantic Ocean. An amended description cortezensis (Friggens Duszynski, 2005) provided clarify details scolex armature. Members are specific single host or particular family, while species. Although globally some plerocerci eutetrarhynchids have been teleosts, extensive examination teleosts off Argentina suggests that transmission pathways these exclusively based on invertebrates as intermediate paratenic hosts.