ACLIS. 105 



4. A. Walle'ri"^, Jefireys. 



Shell forming an elongated cone, very thin, transparent, 

 and lustrous : sculpture, none to the naked eye or with a low 

 magnifying power, but under a Coddington lens may be de- 

 tected a few faint and obscure spiral raised lines and very fine 

 flexuous marks of growth: colour white: spire tapering to 

 a blunt |)oint, which is unmistakeably introverted : whorls 10, 

 rather convex in the middle, with a slope above and below : 

 suture deep and nearly straight : mouth roundish-oval, con- 

 siderably dilated at the base : outer Up flexuous, prominent, 

 and somewhat expanding : inner Up nearly straight, and re- 

 flected at the base, apparently wanting on the upper part of 

 the pillar, and therefore separate from the outer lip : umbilicus 

 small but distinct : operculum filmy, wrinkled in the hne of 

 growth, composed of three turns, the last and outermost of 

 which is disproportionately large ; the line of division between 

 these whorls is raised or ledge-like. L. 0-135. B. 0*05. 



Habitat : East Shetland, 40-45 miles oflF the Whalsey 

 Skerries, in 78 i., one live and three dead specimens. 

 Coralline Crag, Sutton (coll. S. Wood in mus. Brit.), 

 a single specimen, mixed with A. ascaris. Lilljeborg 

 has dredged the present species off Molde in Norway, 

 at a depth of 70 f. ; and I found a specimen among some 

 small shells procured by Dr. Wallich in 1622 f.tj, about 

 100 miles N.E. of Hamilton's Inlet, Labrador. 



All that I could see of the animal in the living Shet- 

 land specimen were two black eyes, which were visible 

 through the shell, as in Jeffrey sia and Eulima; it ap- 

 peared to be in a dying or collapsed state. The abys- 

 mal specimen from North America is much larger than 

 any of those from the European seas and the Coralline 

 Crag. The shell is distinguishable from A. supranitida 

 by being of a much smaller size (intermediate between 



* Named in honour of Edward Waller, Esq., of Aughnacloy, co. Tvrone, 

 an assiduous and good British conchologist. Perhaps the specific name 

 ought, classically, to be Valleri. 



t See vol, ii. pp. is and x of the Introduction. 



F 5 



