Caira, J.N. (1992). Verification of multiple species of Pedibothrium in the Atlantic nurse shark with comments on the Australasian members of the genus. Journal of Parasitology. 78 (2): 289-308.

199139

Caira, J.N.

1992

78 (2): 289-308

Publication

That the 5 species of Pedibothrium previously reported from the Atlantic nurse shark (Ginglymostoma cirratum) do indeed parasitize this host was verified with extensive collections of nurse sharks from the Florida Keys. A sixth species, Pedibothrium servattorum n. sp., is described from a large nurse shark collected off Bimini in the Bahamas. This species differs from all others in the genus in its lack of microtriches on the cephalic peduncle. It can further be distinguished from all species but Pedibothrium brevispine in that the testes on the aporal side of the segment extend just posterior to the cirrus pouch, rather than to the anterior margin of the ovary. It differs from P. brevispine in the shape of the hooks and scolex microtriches and its lack of thickened posterolateral bothridial margins. The name Pedibothrium manteri nom. nov. is proposed to replace Pedibothrium lintoni Caira and Pritchard, 1986, which is a primary junior homonym of Pedibothrium lintoni Shinde, Jadhav, and Deshmukh, 1980. Pedibothrium maccallumi, Pedibothrium globicephalum, and P. manteri are redescribed. A mature segment of P. maccallumi is figured for the first time. The segment of this species is distinctive in its possession of an anterior genital pore, a lateral vagina that extends around the anterior margin of the cirrus pouch, and bothridia with free anterior margins. The descriptions of P. brevispine and Pedibothrium longispine are emended to include information on scolex morphology and segment morphology omitted from previous descriptions; a mature segment of P. longispine is figured for the first time.

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