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Acta Parasitologica, Vol.46, No. 4, 2001, 276-279
Suriano Delia Mabel (1)(2)*, Labriola Juliana Beatriz (1) - Redescription of Cathetocephalus australis Schmidt et Beveridge, 1990 (Cestoda, Cathetocephalidae) parasite of Carcharinus brachyurus (Gunther) (Pisces, Carcharhiniformes) from the southwestern Atlantic Ocean.

(1) Laboratorio de Helmintología, Departamento de Ciencias Marinas, Facultad de Ciencias Exactas y Naturales (UNMdP), Dean Funes 3350, 7600 Mar del Plata; (2) Consejo Nacional de Investigaciones Cientificas y Tecnicas-CONICET; Argentina
*Corresponding author: E-mail: dsuriano@sinectis.com.ar
ABSTRACT

Cathetocephalus australis, parasite of Carcharhinus brachyurus from the southwestern Atlantic Ocean is redescribed. The specific quantitative characters of studied specimens (body size, scolex length, proglottid size, number of testes) are within the range given in Schmidt and Beveridge's description of Cathetocephalus australis from the southern Pacific Ocean. The studied cestode is considered a representative of C. australis, belonging to a southwestern Atlantic Ocean population. This is the first record of genus Cathetocephalus in this region. The eggs of the species are described for the first time and the geographical distribution range of the species is provided.


KEY WORDS: Cathetocephalus, Cathetocephalidae, Cestoda, Carcharhiniformes, fish, southwestern Atlantic Ocean
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