Two species of Stephanostomum Looss, 1899 (Digenea: Acanthocolpidae) from marine fishes off Namibia, including S. beukelaardori n. sp

Bray, R.A.; Reimer, L.W.

Systematic Parasitology 58(3): 209-216

2004


ISSN/ISBN: 0165-5752
PMID: 15218368
DOI: 10.1023/b:sypa.0000032931.23060.d3
Accession: 004374627

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Abstract
Stephanostomum kovalevae Parukhin, 1968 from the intestine of Lophius vomerinus off Swakopmund, Namibia, is redescribed. It is characterised by its large number (c. 73-88) of circum-oral spines, its relatively very long hindbody and the vitellarium reaching close to or just overlapping the ventral sucker. S. beukelaardori n. sp., from the intestine of Zenopsis conchifera off Walvis Bay, Namibia, is described. It belongs to the group of species where the vitellarium reaches the ventral sucker, and which has c. 32-38 circum-oral spines. It is closest to S. casum (Linton, 1910), but differs in lacking the lining of prominent spines in the ejaculatory duct, probably in egg-size and in both forebody and hindbody lengths.