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Acta Parasitologica

, Volume 60, Issue 2, pp 234–243 | Cite as

Description of a new species of Podocotyle Dujardin, 1845 (Digenea: Opecoelidae: Plagioporinae) from the cusk-eel, Luciobrotula corethromycter Cohen, 1964 (Ophidiiformes: Ophidiidae), from the Gulf of Mexico and Caribbean Sea

  • Charles K. BlendEmail author
  • Norman O. Dronen
Article

Abstract

Podocotyle bathyhelminthos n. sp. (Opecoelidae: Plagioporinae) is described from the cusk-eel, Luciobrotula corethromycter Cohen, 1964 (Ophidiiformes: Ophidiidae), collected at depths of 622–1,280 m in the northern Gulf of Mexico and Caribbean Sea off Colombia. The new species is distinguished by possessing a combination of the following features: an elongate oval body shape, a sucker width ratio of 1:1.4–1.9, deeply lobed and irregularly-shaped testes, a cirrus-sac that extends just in to the hindbody, a trilobed ovary and vitellarium that extend to the ventral sucker level. Several unique features in P. bathyhelminthos n. sp. were not present in all, or almost all, recognized species of Podocotyle including a conspicuous deep cleft at the posterior end of the worm, a small transverse ridge on the ventral surface immediately anterior to the ventral sucker, uterine loops extending ventral to the caeca and, at times, lateral to the caeca, a thick-walled metraterm extending 1/3 to 1/2 the length of the cirrus-sac and P. bathyhelminthos n. sp. parasitizes a deep water piscine host. Podocotyle etheostomae Aliff, 1973 is declared a nomen nudum. A brief discussion of Podocotyle Dujardin, 1845 in deep waters is presented, and a gastropod, caridean shrimp and cusk-eel are hypothesized as hosts in the life cycle of P. bathyhelminthos n. sp. in the deep sea.

Keywords

Caribbean Sea Digenea Gulf of Mexico Luciobrotula corethromycter Opecoelidae Ophidiidae Plagioporinae Podocotyle bathyhelminthos n.sp. 

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Copyright information

© Witold Stefański Institute of Parasitology, Polish Academy of Sciences 2015

Authors and Affiliations

  1. 1.Corpus ChristiUSA
  2. 2.Laboratory of Parasitology, Department of Wildlife and Fisheries Sciences, College of Agriculture and Life SciencesTexas A&M UniversityCollege StationUSA

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