OCR Text |
Show 172 MR. A. GARRETT O N THE TERRESTRIAL [FEO. 15, 2. TROCHONANINA MICROCONUS. Nanina microconus, Mousson, Journ.de Conch. 1865, p. 192; (Thalassia) Paetel, Cat. Conch, p. 85. Helix microconus, Pfeiffer, Mon. Hel. v. p. 94. Zonites (Gonulus) microconus, Mousson, Journ. de Conch. 1870, p. 117; Paetel, Cat. Conch. 1873, p. 86; Schmeltz, Cat. Mus. Godeff. v. p. 90. Helix pinnockii, Liardet, Proc. Zool. Soc. 1876, p. 100, pl. 5. figs. 5, 5a. Widely diffused over the group, and, like the preceding, this species lives beneath decaying vegetation. It occurs also in the Tonga and Samoa Islands. A minute, perforated, conical, greyish horn-coloured species with 54 spirally striated whorls, the last one acutely angulated and the base smooth. 3. TROCHONANINA BARKASI. Helix barkasi, Liardet, Proc. Zool. Soc. 1876, p. 100, pl. 5. fig. 6. This species, which is quite unknown to me, was found at Taviuni by Mr. Liardet. He describes it as follows :- " Shell minute, trochiform, very minutely perforated, colour golden horny ; whorls 5-^, convex, roughly and irregularly striated, transversely' ribbed, last whorl acutely carinated ; beneath slightly convex ; striae radiating from the perforation ; aperture oblique and triangular." 4. TROCHONANINA CALCULOSA. Helix calculosa, Gould, Expl. Exp., Shells, p. 48, pl. 5. fig. 63 ; Pfeiffer, Mon. Hel. iii. p. 41. Zonites (Conulus) calculosus, H. & A. Adams, Gen. Moll. ii. p. 116. Nanina calculosa, Gray, Cat. Pulm. p. 126 ; Schmeltz, Cat. Mus. Godeff. v. p. 91. Trochonanina calculosa, Garrett, Journ. Acad. Nat. Sci. Philad. 1884, p. 22. A few specimens were found on the leaves of the hushes at Malolo Island. It is also common and widely diffused throughout the Society Islands. Numerous examples occurred to my notice at Dominique, one of the Marquesas Islands. A minute, globose-pyramidal species, with an angulated body-whorl, reflexed columella, and punctiform perforation. Colour pale corneous ; whorls 5, convex. Genus ZONITES, Montfort. 1. ZONITES VITIENSIS. Zonites vitiensis, Mousson, Journ. de Conch. 1865 p. 193 |