EULIMA. 207 



I consider this species to be the Rissoa sinaosta of 

 Scacchi, although Philippi makes that a synonym of 

 his E. nitida. Chiereghini named it Turbo curvatus, 

 and Leach Balcis arcuata. Macgillivray mistook it for 

 E. polita. 



4. E. steno'stoma*, Jeffreys. 



E. stenostoma, Jeffr. in Ann. & Mag. K H. 3rd ser. ii. p. 128. pi. v. f. 7. 



Body milk-white : mantle thin, stippled with brown : snout 

 crescent-shaped, bilobed, iiexible, and transparent, projecting 

 a little beyond the foot : tentacles rather long and slender, with 

 rounded tips ; they diverge at an angle of about 25° ; at the 

 base of each is a patch of flake-white : eyes entirely wanting 

 in all the specimens (at least a dozen) examined by me at 

 different times : foot broad, squarish, and slightly bilobed in 

 front, narrowing behind to a bluntly rounded point. 



Shell spike -shaped, slender, thin, transparent, glossy and 

 of a brilliant lustre : sculpture, extremely slight and close-set 

 spiral lines, which are discernible only under the microscope 

 and in certain lights ; the surface when examined by the aid 

 of a strong lens or hand magnifier appears quite smooth and 

 polished: colour milk-white: spire elongated, ending abruptly 

 in a blunt and semiglobular point : whorls 9, drawn out and 

 gently swelling ; the last occupies nearly one-half of the spire : 

 suture oblique, defined by a rather broad hem or border of flake- 

 white, which is encircled underneath by a clear and narrow 

 line ; this hem or border arises from a thickening of the shelly 

 material to form the suture or commissure : mouth narrow, 

 extending from a sharp angle above to an expanded and rounded 

 base ; the inner or columellar side represents a very obtuse 

 angle : outer lip flexuous, with a rather thin edge, receding at 

 the top and advancing outwards towards the base : inner lip 

 reflected and twisted over the lower part of the pillar : oper- 

 culum filmy, pale yellowish-horncolour, marked with slight 

 flexuous striae in the line of growth. L. 0*35. B. O0S5. 



Habitat : Fine sandy mud, in 75-90 f, 45-50 miles 

 S.E. by E. of the Whalsey Skerries, Shetland (J. G. J.); 

 30 miles off the same coast, in 82 f. (M' Andrew) . 

 Upper Norway (Loven and M f Andrew). 



* Having a narrow mouth. 



