1 On the Nematode Genus Tanqun, R. Blanchard. 223 bristles of both ninth and tentli segments long ; a dor.^al series of minor setje on 9 and a dorsal pair on 10 ; the latter segment divided above. Type. Hope Department of Zoology, University Museum, Oxford. Ilah. N. Queensland, Brandon ; on a composite Hower {7neUanthus sp.), 16. x. 14 (i?. Kelhj). Near P. glancus, Bagn. (a South-African species), from which it may be separated, apart from coloration, by the fewer setfie on veins of fore-wings and the chajtotaxy of the apical abdominal segments. XIX. — The Nematode, Genus Tanqiia, R. Blanchard. By H. A. Baylis, B.A. (Published by permission of the Trustees of the British Museum.) Up to the present time only a single species of this remark-able genus appears to have been recognized, viz. the interesting form Tanqua ^iara (v. Linst.). This is a nematode of medium size, somewliat resembling an Ascaris in general build, and inhabiting the stomach and intestines of reptiles of more or less aquatic habits. It was first recorded, under the name of Ascaris tiara, by von Linstow (1879), from ''Varanus ornatus^^ (? V. alhigidaris*) in Natal. The otlier hosts and localities from which it has been recorded in publisiied papers are : — Varanus salvator, Sumatra (Parona, 189b) ; V. gouldii, Australia or New Guinea — precise locality unknown (Parona, 1898) ; T'. hengalensis, Ceylon (von Linstow, 1904) ; and V. nilottcuft. White Nile (Leiper, 1908). Leiper also men-tions the occurrence of a very similar form in Ilydrosaurus hivittalus from the Federated Malay States. I have now to add that I have examined specimens, which I believe to belong to this species, (1) from a lizard (probably Varanus niloticus, though I have no information regarding its determination), from Accra, Gold Coast Colony ; (2) from Tropidonotus qxi'ncunciatus (7\ asperrimus, Blgr.f), from Ceylon ; and (3) from Varanus e.ranthemati'cus, Northern * Dr. G. A. Boulenf^er informs me that V. alhigidaris is the form most uearly related to V. orvntus, occurring in Natal. t J)r. lioulenger regards the Ceylon form of T. (/td/icuncialus as a di.stiuct species.
BioStor
