A NEW TRICHOSOMOIDID FROM THE SKIN OF SEBASTES SPP. (PISCES) FROM BRITISH COLUMBIA, CANADA

A new species of trichosomoidid nematode, Huffmanela canadensis n. sp., is described from the skin of rockfish (Sebastes spp.) from the Pacific Ocean off the coast of Vancouver Island (Clayoquot Sound region), British Columbia, Canada, on the basis of the morphology of the adult worms and their eggs...

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Bibliographic Details
Published in:	The Journal of parasitology Vol. 91; no. 2; pp. 411 - 414
Main Authors:	Moravec, František, Conboy, Gary A, Speare, Dave J
Format:	Journal Article
Language:	English
Published:	Lawrence, KS American Society of Parasitologists 01-04-2005 Allen Press Inc
Subjects:	Agnatha. Pisces Animal tissues Animals Biological and medical sciences British Columbia Eggs Esophagus Female Female animals Females Fish Fish Diseases - parasitology Fishes Fishing Fundamental and applied biological sciences. Psychology General aspects General aspects and techniques. Study of several systematic groups. Models Gills Invertebrates Laboratories Light Male Male animals Males Marine Marine fishes Morphology Nematoda - anatomy & histology Nematoda - classification Nematode Infections - parasitology Nematode Infections - veterinary Nematodes New species Ova Parasite hosts Parasites Parasitology Pisces Sebastes Skin Skin Diseases, Parasitic - parasitology Skin Diseases, Parasitic - veterinary SYSTEMATICS-PHYLOGENETICS Uterus Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution Worms Canada British Columbia North America America Vancouver Island British Columbia Canada Clayoquot Sound Canada, British Columbia Parasite Vertebrata Skin Teleostei Pisces Osteichthyes
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Summary:	A new species of trichosomoidid nematode, Huffmanela canadensis n. sp., is described from the skin of rockfish (Sebastes spp.) from the Pacific Ocean off the coast of Vancouver Island (Clayoquot Sound region), British Columbia, Canada, on the basis of the morphology of the adult worms and their eggs in the host's tissue and the biological characters. The species is characterized mainly by the shape and structure of the fully developed eggs (absence of surface envelope, surface with transverse ridges), by their small size (48–63 × 24–27 μm), and by the site of infection (skin). Besides Huffmanela huffmani, this is the second Huffmanela species in which adult worms are known in addition to the eggs from the host's tissues (most Huffmanela spp. have been described only from their conspicuous eggs occurring in various tissues of fishes). Adults of H. canadensis differ morphologically from those of H. huffmani, mainly in the structure of the male caudal end and in the distinctly elevated anterior vulvar lip of the female.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0022-3395 1937-2345
DOI:	10.1645/GE-3420