NO. 2207. WEST AMERICAN MELANELLID M0LLU8KS—BARTSCU. 325 



appears as a conspicuous false suture. Surface marked by fine lines 

 of growth only. Periphery of the last whorl weakly angulatcd. 

 Base strongly rounded on the left side. Aperture very obhque, 

 ovate; posterior angle acute; outer hp decidedly protracted at the 

 periphery; inner lip short, curved, slightly sinuous, reflected over and 

 appressed to the base; parietal wall covered by a thick callus. 



The type and four specimens (Cat. No. 207771, U.S.N.M.) were 

 collected by Rev. G. W. Taylor, at Departure Bay, British Columbia. 

 The type has 15 whorls and measures— length, 9.5 mm.; diameter, 3 

 mm. This is the largest of flexed Melanellas knoMii from the West 

 Coast of America. 



MELANELLA (BALCIS) COMOXENSIS, new species. 



Plate 41, fig. 4. 



Shell broadly conic, with a double flexure, the early portion being 

 turned back while the later is turned to the right; bluish-white, pol- 

 ished. First two whorls well rounded, separated by a constricted 

 suture, the rest slightly rounded, a little more so on the convex than 

 the concave side, marked by exceedingly fine lines of growth and 

 microscopic spiral striations and occasional varicial streaks, which 

 appear as an opaque spot in the shell. Suture scarcely defined. 

 The posterior limit of the inside of the whorls shines through the 

 substance of the shell and appears as a false suture. Periphery of 

 the last whorl slightly angulated. Base short, strongly rounded. 

 Aperture broadly oval, rather short; posterior angle acute; outer lip 

 protracted at the periphery; inner Hp short, slightly curved, strongly 

 reflected and appressed to the base; parietal wall covered with a thick 

 callus. 



The type and five specimens (Cat. No. 207773, U.S.N.M.) were 

 collected at Comox, British Columbia, by Rev. G. W. Taylor. The 

 type has 11 whorls and measures — length, 7.1 mm.; diameter, 3 mm. 



Twenty-eight additional specimens from the same locahty are in 

 Rev. G. W. Taylor's coUection. 



