364 CAMPOL^MUS. 



cept for some very slight lines of growth, and of a somewhat 

 transparent bluish-gray tint. There is a rather long flatten- 

 ing of the last whorl, behind the outer lip, in the middle a 

 very little impressed over the upper palatal fold. Other ex- 

 amples are more chalky and opaque ; and when a little worn, 

 long, narrow, external furrows (varying in depth) appear 

 over the upper or over both palatals, often with a little pit 

 above the labral end of the upper one. These furrows are the 

 result of erosion, and not proper to the species in its perfect 

 state. 



There is usually a triangular callus where the angular 

 lamella joins the upper termination of the lip, which is more 

 or less detached from the preceding whorl, and often more 

 highly arched than in the example figured. The columellar 

 lamella curves upward a little at its inner termination. 

 There is a basal fold in form of a low tubercle, subcolumellar 

 in position, and so deeply immersed that it is not visible in a 

 face view; but often this is reduced to a slight callus which 

 would hardly be noticed. 



Length 2.5, diam. 1.2 mm. ; 5% whorls. 



Length 2.2, diam. 1.2 mm.; 5*4 whorls. 



These notes are from two lots collected by Capt. Turton. 

 Mr. Smith's measurements are obviously inexact, and do not 

 agree with the proportions of his figures. 



Genus CAMPOL^MUS Pilsbry. 



Tomigerus sp., E. A. SMITH, Proc. Zool. Soc. London, 1892 r 

 p. 267. 



Campolccmus PILS., Nautilus, vi, Dec. 1892, p. 96, for 

 Tomigerus (1) perexilis Smith. 



Shell resembling Tomigerus in miniature; minute, imper- 

 forate but with a long basal suture, obtusely conic, the last 

 whorl distorted, ascending. Aperture slanting upward, with 

 distinct sinulus bounded by the long,i emerging angular 

 lamella and upper palatal fold; parietal and columellar 

 lamellae and lower palatal fold very deeply immersed ; lip 

 well expanded. 



While this snail is astonishingly like Tomigerus in form> 



