On a new species of Praegeria occurring in the Sandy beach, Madras

Alikunhi, K. H. (1941) On a new species of Praegeria occurring in the Sandy beach, Madras Proceedings of the Indian Academy of Sciences, Section B, 13 (3). pp. 193-228. ISSN 0370-0097

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Official URL: http://www.ias.ac.in/j_archive/procb/13/3/193-228/...

Related URL: http://dx.doi.org/10.1007/BF03049154


From the foregoing pages it is clear that the present form shows a number of interesting features in which it markedly differs from the other species of the genus. These characters seem to me of sufficient value for the creation of a new species for its reception and for which I propose the name Praegeria gopalai. The important characters of this species can now be summarised as follows: Minute slender worm, 4 to 10 mm. long, with 25 to 50 setigerous segments; ventral cirrus of the buccal parapodium globular; ventral cirrus of the first setigerous foot slightly elongated; anal segment with two conspicuous groups of caudal glands; only a single pair of sperm-sacs, genital funnels and copulatory organs in the male; secondarily median testis enclosed in a membrane and often extending into two segments; tapering entire copulatory organ provided with a large spinous papilla sperm-sacs having double saccular expansions; in the female, one or two ovarian groups covered over by a membrane and each group extending into 6 to 15 consecutive segments; receptacula seminis and genital funnels corresponding to the number of ovarian groups; parapodia of the segment carrying the receptacula seminis completely atrophied and carrying only two acicula; sperms from the receptacula seminis nail shaped having developed a conspicuous terminal hood. Locality: -Sandy Beach, Madras. Holotype: -In the Indian Museum, Calcutta.

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