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Show 1892.] MR. R. J. L. G U P P Y O N B U L I M U S O B L O N G U S . 271 is quite obvious that neither of the names proposed by Lieutenant Tarnovski can be applied to the bird in question. I therefore propose to call it Phasianus tarnovskii, after its discoverer. It is quite possible that Phasianus zerafshanicus is distinct from P. principalis, but its distinctness can scarcely be fully admitted without a comparison of specimens. According to Lieutenant Tarnovski, P. zerafshanicus has only recently made its appearance in the upper valley of the Zarafshan. H e writes:-"Mr.Klossovski,who had resided in Katta-Koorgan for thirteeu years, informed me that Pheasants had made their appearance in the district of Katta-Koorgan (where we were shooting) about 1883, and that they had immigrated from the Bokharian dominions, probably from the Kara- Kool lakes and reeds (the Zarafshan does not reach the Amoo-Daria, but is lost in the sands near Kara-Kool), whence they were driven forth by the invasion of the Kisil K o o m sands, which gradually bury the western part of Bokhara under their hills." Lieutenant Tarnovski further adds that "the Pheasant of the Zarafshan has a mode of life totally differing from its other Asiatic brethren, owing to the high state of cultivation of the Zarafshan valley ; it breeds and nests in the reedy swamps and marshes bordering on this stream, and takes its food from the neighbouring fields and gardens." 3. Note on Bulimus oblongus. By R. J. LECHMERE GUPPY, C.M.Z.S. [Eeceived March 19, 1892.] The specimens of the anatomy of Bulimus oblongus which I exhibit may have some interest for Fellows of this Society. In m y paper on the Mollusca of Trinidad published in the ' Annals and Magazine of Natural History' for January 1866 (ser. 3, vol. xvii. p. 48), I mentioned some peculiarities of the structure of this mollusk, which had been figured by d'Orbigny in his ' Voyage dans l'Amerique Meridionale.' The tentacular appendages of the head call to mind the Cephalopoda, and the jaw in two horny portions strengthens the analogy. The specimens now shown are :-(1) the jaw preserved in glycerine, (2) the anterior portion of the animal in spirit, (3) the dental membrane in Canada balsam, (4) the shell and egg. These are all probably well known. 1 have had the pleasure on more than one occasion of presenting living examples of this fine species to the Gardens of the Society; but, owing to its habit of burrowing, I fear few of the visitors have had the opportunity of seeing the creature in motion. I take the opportunity of mentioning another fact concerning this mollusk which may possibly be new. The family Helicidse, to which Bulimus oblongus belongs, is generally considered to have the sexes united, nevertheless requiring the congress of two individuals for reproduction. I a m not able to assert that Bulimus oblongus is |
