1887.] mollusca of the viti islands. 189 



2. Vertigo tantilla. 



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

 p. 197 ; Pfeitfer, Moo. Hel. iii. p. ftbl ; {Vertigo) Moussoii, Journ. 

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

 p. 6!) ; (Pupiiie/l/t) Paetel, Cat. Conch. 1?73, p. 10^. 



Vertigo tantilla, Gould, Ex|)l. Ex[.., Shells, p. 92, fig. 103; 

 {Aiceu) IT. & A. Adams, Gen. Midi. ii. p. 1/2; Pease, Proc. Zool. 

 Soc. 18/1, pp. 4G0, Aiu^, 4 74 ; Garrett, Juurn. Phil. Acad. Nat. Sci. 

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



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

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



Vertigo pleurophora. Pease, Prnc. Zool. Soc. 18/1, p. 474. 



Pupa dinikeri, " Zelehor," Pteiffer, iMon. Hel. vi. p. 333. 



Vertigo ihmkeri. Pease, Pioc. Zool. Soc. 1871, p. 4 74. 



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



Pupa annata, Pleiffer, Mon. Hel. viii. p. 407. 



Vertigo (ientifera. Pease, Proc. Zool. Soc. 1871, pp. 462, 474. 



Pupa deutifera, Pleiffer, Mon. Hel. viii. p. 408. 



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

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

 amongst decaying leaves. 



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

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

 whorls. Ctdnur jiale corneous under a brownish, more or less 

 distinctly shagreened epidermis, which in perfect examples is fur- 

 nished with oblique niembiam us riblets. The last whorl, behind 

 the peristome, is frequently bisulcate. 



March 1, 1887. 

 Prof. W. H. Flower, LL.D., F.R.S., President, in the Chair. 



Prof. Jeffrey Bell read extracts from a communication sent him 

 by Mr. Edgar Thurston, Superintendent of the Government Central 

 Museum, Madras, with reference to a Batraehian of the geuus 

 Cacopus. Of a specimen of C. globulosus, Mr. Thurston wrote: — 



" On laying ojien the visceral cavity, the globular shape was found 

 to be due to an enormous distention of the oesophagus and stomach, 

 the latter occupying nearly the whole of the abdominal cavity, and 

 the remaining viscera »&.c. being compressed and lying posteriorly. 

 There was no distention of the intestinal tract. The distention of 

 the oesophagus and stomach was found, on section, to be caused by 

 the presence in their cavities of a mass of winged White Ants {Ter- 

 mites), which, when dried, weighed 326 grains." 



The colour of C. systoma during life was reported to be " prim- 

 rose-yellow marbled with black, the yellow colouring-material rapidly 

 dissolving in alcohol." 



Proc. Zool. Soc— 1887, No^XIV. 14 



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