1?87.] mollusca of the viti islands. 189 



2. Vertigo tantilla. 



Pupa {Vertigo) tantilla, Gould, Proc. Bost. Soc. Nat. Hist. 1847, 

 p. 197 ; Pfeiffer, Mon. Hel. iii. p. .557; {Vertigo) Monsson, Jourii. 

 de Conch. 1870, p. 127 ; {Vertigo) Schmeltz, Cat. Mus. Godeff. iv. 

 p. 69 ; {Pupinella) Paetel, Cat. Conch. 1873, p. 108. 



Vertigo tantilla, Gould, Expl. Exp., Shells, p. 92, fig. 103 ; 

 {Aicea) H. & A. Adams, Gen. Moll. ii. p. 172; Pease, Proc. Zool. 

 Soc. 1871, pp. 460, 463, 474 ; Garrett, Journ. Phil. Acad. Nat. Sci. 

 1881, p. 400, 1885, p. 84. 



Pupa jileurophora, Shuttleworth, Bern. Mittheil. 1852, p. 296; 

 Pfeiffer, Mon. Hel. iii. p. 560. 



Vertigo pleurophora. Pease, Proc. Zool. Soc. 1871, p. 474. 



Pupa dimkeri, " Zelebor," Pfeiffer, Mon. Hel. vi. p. 333, 



J Vertigo dunkeri. Pease, Proc. Zool. Soc. 1871, p. 474. 



Vertigo armata. Pease, Proc. Zool. Soc. 1871, pp. 461, 474. 



Pupa armata, Pfeiffer, Mon. Hel. viii. p. 407. 



Vertigo dentif era. Pease, Proc. Zool. Soc. 1871, pp. 462, 474. 



Pu]pa dentifera, Pfeiffer, Mon. Hel. viii. p. 408. 



Ranges from the Society to the Viti Islands. This and the 

 preceding species are found beneath rotten wood, under stones, and 

 amongst decaying leaves. 



In shape it varies from an abbreviate-ovate to oblong-oval, and 

 also in a greater or less degree in the relative proportion of the 

 whorls. Colour pale corneous under a brownish, more or less 

 distinctly shagreened epidermis, which in perfect examples is fur- 

 nished with oblique membranous riblets. The last whorl, behind 

 the peristome, is frequently bisulcate. 



Contents {continued). 



Page 



8. Ou Bome Coleopterous Insects collected by Mr. H. H. Johnston.- on the Cameroons 



Mountain. By Charles O. Waterhousb ; 128 



9. On a supposed Hybrid between the Pilchard {Clupea pilchardua) and the Herring 



(C. harmgus), and on a specimen of Sahno purpuratus. By F. Day, C.I.E. (Plate XV.) 129 



ID. Notes on the Peripaius of British Guiana. By W. L. Sclatee, B.A., P.Z.S 130 



February 15, 1887. 

 The Secretary. Report on the Additions to the Society's Menagerie in January 1887 138 



1. Report on a Collection of Echinodermata from the Andaman Islands. By F. Jefpkey 



Bell, M.A., Sec.R.M.S., Professor of Comparative Anatomy and Zoology in King's 

 College, London. (Plate XVI.) 139 



2. On a Collection of Reptiles and Batrachians made by Mr. H. Pryer in the Loo Choo 



Islands. By G. A. Boulenger, F.Z.S. (Plates XVII. & XVIII.) 140 



3. On the small Mammalia collected in Demerara by Mr. W. L. Sclater. By Oldfield 



Thomas. (Plate XIX.) IfJO 



4. On a new Geckoid Lizard from British Guiana. By G. A. Boulenger, F.Z.S 153 



6. On the Structure of a new Genus of Lumbricidse ( Thamnodrilus guliebni). By Frank E. 

 Beddaud, M.A., F.R.S.E., Prosector to tlie Society, Lecturer on Biology at Guy's 

 Hospital .- 154 



6. Note on a new Parasitic Dipterous Insect of the Family Hippoboscidse. By Charles O. 



Waterhotjse i63 



7. On the Terrestrial Mollusks of the Viti Islands. — Part I. By Andrew Garrett, of Hua- 



hine, Society Islands. (Communicated by Mr. John H. Ponsonbv, F.Z.S.) I(i4 



