170 M. M. SCHEP.MAN, LAND- AND FRESHWATER MOLLUSCA ETC. 



the identifications of GUDE and of DaUTZENBERG, who both consider thèse spécimens to 

 belong to P. taumantias. 



Amphidromus Albers. 



1. Amphidromus contrarias Millier. 



Muller. Hist. Vermium, p. 95. 



v. Martens. Ostas. Landschn. p. 363, PL 21, fig. 7a, 7^, -je, 10. 



Pilsbry. Man. of Conch. Ser. II, Vol. XIII, p. 210, PL 65, fig. 22 — 27. 



New Guinea. Bivak Island, May, 1907. 



It is very strange to find a spécimen of Amphidromus in a New-Guinean collection of 

 mollusca, as this genus, as far as I am aware, has never been found on that island; it is 

 still stranger that it is the well-known A. contrarias, the type of which was only knovvn 

 from Timor and Rotti; hovvever the identification is not doubtful ; the only spécimen agrées 

 sufficiently with fig. je of v. MARTENS, fig. 23 of PlLSBRV, also with my spécimens from 

 Samau near Timor, moreover the particulars of the aperture, of which PlLSBRV says : „Parietal 

 callus thin, showing the bands through, thickened at the edge below and near the 

 posterior angle, where there is a subtriangular tubercle, separated from 

 the termination ofthe outer lip, by a deep but narrow channel, which con- 

 tinues al on g the suture in si de" (Le. PI. 68, fig. 25), fully agrée. If the label dit not 

 give the spécial locality with date, one might doubt if the spécimen had really been found 

 in New Guinea, now one must think, the spécimen has been transported by some means 

 from its common stock. It is not probable that the same species will hâve lived on Timor 

 and New Guinea, far from the coast, without intermediate localities, under normal circum- 

 stances. The shell contains the soft parts. 



Calycia Adams. 



1. Calycia crystallina Reeve. 



Reeve. Conch. le, Buliraus, fig. 194. 



Tapp. Canefri. Fauna Mal. New Guinea, p. 100. 



Pilsbry. Man. of Conch., Ser. II, Vol. XIV. p. 20, PL 4, fig. 16—18. 



New Guinea. Lorentz River. Sept. 5 — 12, 1909. 



The surface of the spécimens has suffered from the action of formalin, and especially 

 in onie younger spécimen, the shell has a few opaque, white, spiral lines, but otherwise it 

 agrées sufficiently with the figures and a spécimen in my collection. 



PlLSBRY has since located this genus amongst the Zonitidae, on account of the anato- 

 mical researches of SCHACKO (Archiv fiir Naturgesch. 33, 1897, p. 43, PL 9) but regrets that 

 SCHACKO has not mentioned if the species possesses a pedal groove, though the figure seems 

 to indicate it. Mr. RoBSON has recently (Transact. Zool. Soc. Lond. Vol. XX, 1914, p. 289) 

 followed PlLSBRY. After examining the preserved animais I am in doubt if this view be right, 

 in the front part of the sides, near the head, a groove is distinguishable, but more behind, 

 only a shallow, irregular line may be seen, hpwever quite différent from wat I find in Xesta 



