New species of rhynchobdellid leech (Hirudinea: Glossiphoniidae): a parasite of turtles from Chiapas, Mexico.

J Parasitol

Ingeniería en Acuacultura, División Académica de Ciencias Agropecuarias, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tabasco, México.

Published: December 2009

AI Article Synopsis

  • A new species of rhynchobdellid leech, named Placobdella ringueleti, has been identified from 25 specimens found on three types of freshwater turtles in Chiapas, Mexico.
  • The new leech species shares similarities in ocular structure and reproduction with others in its genus, but is unique due to its distinct dorsal patterns and features on its posterior sucker.
  • This discovery marks the third known species of the Placobdella genus in Mexico, with its type locality situated in the "El Ocote" Biosphere Reserve.

Article Abstract

A new species of rhynchobdellid leech, Placobdella ringueleti n. sp., is described based on the examination of 25 specimens. Leeches were collected from body appendages of freshwater turtles (Kinosternon leucostomum, Dermatemys mawii, and Staurotypus triporcatus ) from Chiapas, Mexico. The new species resembles other members of the genus in the ocular morphology, bilobated ovaries, and presence of 1 pair of elongated mycetomes, but it is distinguished from them by the dorsal papillar pattern, by having a continuous longitudinal mid-dorsal stripe along the dorsal surface and papillae on the dorsal surface of the posterior sucker. Placobdella ringueleti represents the third species of the genus in Mexico. The type locality of the new species is part of the “El Ocote” Biosphere Reserve, Chiapas, Mexico.

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http://dx.doi.org/10.1645/GE-2128.1DOI Listing

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