48 CYLINDROVERTILLA. 



heavy internal callus, narrow in the sinulus, an obtuse inward 

 projection below it ; and in the base the callus rises in a low, 

 wide boss. The angular lamella is very long and somewhat 

 sinuous. Columellar lamella rounded. Upper palatal fold 

 rather long, higher and bent down within, weakly emerging 

 to the lip-callus. There is no lower palatal fold. 



Length 1.75, diam. 0.85 mm. ; 4i/ 2 whorls. Anse Vata. 



Length 1.63 mm. 



Length 1.8 mm. 



A series of this species was collected on Boyne Island, 

 southeastern Queensland, by C. T. Musson. The specimens, 

 or some of them, show a trifle more striatioii than those of 

 New Caledonia, and the angular lamella may be slightly more 

 sinuous; but the differences noted are trivial. An average 

 example and one somewhat stouter and more distinctly striate 

 are figured. They measure : 



Length 1.65, diam. 0.84 mm. Fig. 12. 



Length 1.63, diam. 0.9 mm. Fig. 13. 



4. CYLINDROVERTILLA PAITENSIS (Crosse). PL 5, fig. 6. 



The shell has a well-marked umbilical crevice, is sinistral, 

 of oval-oblong shape, a little ventricose, thin, corneous. 

 Spire moderately conic, terminating in an obtuse summit. 

 Suture lightly marked. Whorls 4i/ 2 , convex, a little inflated, 

 increasing regularly, the last whorl nearly as large as the 

 spire and tapering to the base. Aperture subvertical, semi- 

 oval, contracted by the presence of a single quite strong 

 parietal fold. Peristome thick and of a brownish-corneous 

 violaceous color. Outer margin slightly bent in. Length 1.5, 

 greatest diam. 0.75 mm. (Crosse}. 



New Caledonia: Paita, on the west coast (E. Marie). 



Pupa paitensis CROSSE, Journ. de Conch., xx, 1872, p. 227 : 

 xxii, 1874, p. 391, pi. 12, f. 5. BOETTGER, Conchol. Mittheil., 

 i ; p. 63. Vertigo paitensis CROSSE, J. de C., xlii, 1894, p. 304 

 (1896). 



This species evidently stands very close to C. Jeingi of Aus- 

 tralia. It appears to differ in certain details, but I have not 

 been able to compare specimens, and have copied the original 



figure. 



