Parukhin, A. M., & Tkachuk, L. P. (1980). New species of trematodes from fish in the Indian Ocean. In Nauchnye Doklady Vysshei Shkoly, Biologicheskie Nauki. 6(198): 41-44.

200137

Parukhin, A. M., & Tkachuk, L. P.

1980

6(198): 41-44

Publication

Two new trematodes from fish caught near cape Agulhas, Indian Ocean, are described and figured, each from one specimen. Multicalyx multicristatus n.sp., from the spiral valve of Sphyrna lewini, differs from the only other species of the genus, M. eristatus, in size (249 x 5 mm instead of 79 x 2 mm) and in the structure of the anterior part of the adhesive apparatus which has 5 sucking cups separated by 4 septa instead of 8 sucking cups separated by 7 septa. M. multicristatus has 252 (instead of 79) lug-like crests in the long ventral sucker complex. It is further differentiated in the position of the single testis relative to the ovary, in the host and in the geographical distribution. The diagnosis of Multicalyx is emended. Aporocotyle smithi n.sp. from the blood vessels of the digestive tract of Genypterus capensis differs from A. spinosicanalis in the length of the intestinal crura which do not reach as far as the genital organs, in the ratio of body length to width, in the ratio of length of oesophagus to body length (1:4.8 instead of 1:2.7) and in the shorter body spines.

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