Translator Disclaimer
1 April 2012 Description of Three New Species of Echinobothrium (Cestoda: Diphyllidea) from Indo-Pacific Elasmobranchs of the Genus Glaucostegus (Rajiformes: Rhinobatidae)
Author Affiliations +
Abstract

Three new species of diphyllidean cestodes are described from rhinobatid elasmobranchs of the genus Glaucostegus from the Indian and Pacific Oceans. All 3 new species have 11 apical hooks (6 type-A and 5 type-B hooks) and, therefore, differ in this feature from all but 5 of the 39 valid species of Echinobothrium. In addition, Echinobothrium tetabuanense n. sp. from Glaucostegus cf. typus in the Sulu Sea, Borneo differs from all of its congeners in the number and arrangement of hooklets, number of spines on the cephalic peduncle, and the number and distribution of testes. Echinobothrium sematanense n. sp. from Glaucostegus thouin in the South China Sea, Borneo, can be distinguished from its congeners based on the following combination of characters, i.e., small size (worms less than 1 mm long), number of hooklets, spines per column on the cephalic peduncle, and number of testes. Echinobothrium weipaense n. sp. from northern Australia is unique in the position of the cirrus sac and genital pore, both structures being well posterior and not overlapping the ovary. An emended description of the microthrix pattern on the scolex of Echinobothrium chisholmae from G. typus in Australia is also presented.

American Society of Parasitologists
Verónica A. Ivanov and Janine N. Caira "Description of Three New Species of Echinobothrium (Cestoda: Diphyllidea) from Indo-Pacific Elasmobranchs of the Genus Glaucostegus (Rajiformes: Rhinobatidae)," Journal of Parasitology 98(2), (1 April 2012). https://doi.org/10.1645/GE-2731.1
Received: 17 December 2010; Accepted: 1 October 2011; Published: 1 April 2012
JOURNAL ARTICLE
13 PAGES


SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top