Studies on the hippolytid shrimps from Japan, III. : Heptacarpus proptignatrix (de Man), a synonym of H. pandaloides (Stimpson)

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Recently a number of hippolytid shrimps collected from littoral weedbelts were presented to our laboratory by Dr. Taiji Kikuchi. of the Amakusa Marine Biological Laboratory and Mr. Hitoshi Sando of the Yamagata Prefectural Fisheries Research Station, to whom we wish to express our hearty thanks. Through the courtesy of them, we could examine a series of specimens of Heptacarpus pandaloides (Stimpson) which was originally described under the name Hippolyte pandaloides from the Hakodate Bay, Hokkaido. Consequently the young specimens of this species proved to be rather different from the adults in the relative length of the rostrum and its spinulation. In 1906 de Man described a new species, Spirontocaris propugnatrix, which is referred to the genus Heptacarpxs (after Holthuis, 1947), collected together with H. pandaloides from the Inland Sea of Japan. As this species agrees well with the young specimens of H. pandaloides, we asked Dr. Isabella Gordon of the British Museum (Nat. Hist.) to examine the type specimen of H. propugnatrix. Owing to her kind examination of the type and comparison with de Man’s specimens of H. pandaloides collected together, these two species proved to be entirely identical with each other. After de M an (1907) gave the extensive descriptions of these two species, H. propugnatrix has been for long time treated erroneously as a valid species.
九州大学の論文
1968-03-30