182 CADULUS-GADILA. 



Type measures : length of shell, 12'0 ; max. diam., 2*0 ; rain, diam.,. 

 0-7 mill. 



Near Victoria, Vancouver Island, in 60 fms., with C. hepburni 

 (Nat. Hist. Soc. Brit. Columbia). 



Cadulus tolmiei Dall, Nat. Hist. Soc. Brit. Columbia, Bull. No. 2y 

 p.l3, pi. l,f. 8 (1897). 



" This species is markedly different, both in arcuation and the in- 

 flation of the anterior part, from either C. aberrans or C. hepburni. 

 I have named it in honor of the late Dr. William Tolmie, of Vic- 

 toria, sometime officer of the Hudson Bay Co., who for many year.'i 

 contributed valuable material to the students of the ethnology and 

 natural history of British Columbia, both in America and England." 

 (Dall). 



C. tolmiei is smaller and less inflated than G. californicus Pils. & 

 Sharp, and the equator is less distinct. It is very similar to C. 

 rushii from the Hatteras region in the Atlantic, but that is mors 

 attenuated posteriorly. With the type a specimen occurred differ- 

 ing in several respects, and probably at least varietally distinct. 



C. {tolmiei var. ?) newcombei P. & S., n. var. PI. 34, figs. 1 , 2. 



About the length of tolmiei, but decidedly more slender, greatest 

 diameter contained nearly 6 times in length, section of the tube 

 markedly oval, compressed vertically throughout; aperture ovaL 

 Length ITO; antero-posterior diam. at aperture 1 '45, at greatest 

 bulging, 1"66, at apex 0'66 mill. ; lateral diam. at aperture 1*55, at 

 largest 1"9, at apex 0*75 mill. 



Indo-Pacific and Australian Species. 

 C. siMiLLiMus Watson. PI. 26, fig. 77. 



Shell very like Cadulus gracilis Jeffr., rather broad, narrowed at 

 both ends, very slightly and symmetrically bent, but a little more 

 towards the mouth, with a very slight bulge, which just shows on 

 the concave curve. It is thin, polished, translucent (weathering 

 opaque), with an opaque ring near the apex. Sculpture ; Very 

 minute and faint and superficial oblique striae, with a fiiint floccu- 

 lence in the substance of the shell. Mouth rather large, oblique? 

 edge thin, but rounded; apical opening small, thin, and chipped. 

 Length 0'16 inch, breadth at mouth 002, greatest 0*036, at apex 

 0-014 inch. (Watson). 



Raine Island, Cape York, N.E. Australia, 155 fms. (Challenger). 



