Four new species of Acanthobothrium (Cestoda: Tetraphyllidea) from the whiptail stingray Dasyatis brevis in the Gulf of California, Mexico

The Journal of Parasitology
S Ghoshroy, Janine N Caira

Abstract

Examination of the spiral intestines of 29 whiptail stingrays, Dasyatis brevis, from 6 sites in the Gulf of California, Mexico in 1993 and 1996 resulted in the discovery of 4 new species of Acanthobothrium: Acanthobothrium bullardi, Acanthobothrium dasi, Acanthobothrium rajivi, and Acanthobothrium soberoni. This brings the total number of species of Acanthobothrium known from the eastern Pacific Ocean to 34. With 22 additional species reported from elasmobranchs from the western Atlantic Ocean, and over 100 species globally, the number of interspecific comparisons required to justify the designation of a new species is rather unwieldy. To facilitate these and future comparisons, and in the absence of a phylogenetic hypothesis for this genus, the 56 species of Acanthobothrium from these 2 geographic regions were categorized for 4 characters: total length (< or = or > 15 mm), number of segments (< or = or > 50 segments), number of testes (< or = or > 80), and symmetry of poral and aporal ovarian lobes. These 56 taxa and their categories are presented in tabular form. Based on these characters, A. bullardi, A. dasi, and A. rajivi are category 2 species (they are relatively small, possess few segments, relatively few testes, and ex...Continue Reading

References


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Citations

Apr 6, 2016·ZooKeys·Aldo Iván Merlo-Serna, Luis García-Prieto
Mar 15, 2018·Revista brasileira de parasitologia veterinária = Brazilian journal of veterinary parasitology : Órgão Oficial do Colégio Brasileiro de Parasitologia Veterinária·Erick Rodríguez-IbarraScott Monks
May 23, 2014·The Journal of Parasitology·Janine N Caira, Kirsten Jensen
Aug 10, 2021·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Mario SantoroMarialetizia Palomba
Oct 3, 2021·Parasitology International·Berenice Adán-TorresLuis García-Prieto

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Methods Mentioned

BETA
light microscopy
scanning electron microscopy

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