MOLLUSCA OF THE * CHALLEN&EK ' EXPEDITION. 121 



This species is remarkable for the breadth of its base aud the 

 smallness of its tip. Unfortunatelj it is not very well repre- 

 sented, the specimen wbich I regard as full-grown being rubbed 

 and chipped, and the two which are perfect being young and im- 

 perfectly developed, especially about the mouth. 



12. EULIMA PAMELICA, U. sp. 



St. 75. July 2, 1873. Lat. 38° 38' N., loug. 28° 28' 30" W. 

 Fayal, Azores. 450 fms. Sand. 



Sfiell. — Slightly more cylindrical than is usual in the genua, 

 thin, with a small direct oval mouth, a truncated rounded base 

 unsymmetrical profiles, wborls neither convex nor concave, yet 

 not flat, suddenly constricted near the tip, which is small, but 

 not fine, and is bluntly rounded. Sculpture none. Colour white, 

 but with a horny translucency. Apex small, but blunt and 

 rounded. Spire small, slightly bent, enlarging slowly and regu- 

 larly ; its profile-lines are slightly convex, but are not symme- 

 trical. Whorls 11, those toward the apex are slightly convex 

 after the second is a rather sudden slight enlargement. Suture 

 slightly impressed and rather distinct, not much oblique. Mouth 

 oval, pointed above, rather email. Outer lip arched, slightly 

 patulous ; its edge retreats above, advances very mucb below 

 retreating again in front, where it forms a slight patulous gutter. 

 Inner lip has a thickened glaze with defined edge, and is very regu- 

 larly arched from the upper corner to the point of the shortish 

 narrow-edged pillar. H. 0'14. B. 0"04. Penultimate whorl, 

 height 0-029. Tip of apex 0-003. Mouth, height 0-04, breadth 

 0-029. 



The name of this species was suggested by the hungered look 

 of the shell. It has a larger tip with a less contracted spire, a 

 more truncated base, and a smaller broader mouth than E. gra- 

 cilis, Forb. & Han. It most resembles E. sarissa ; but it is, as 

 compared to that species, slimmer, the base is much shorter, the 

 mouth more regularly oval, the apex blunter, the spire more 

 flexuous. 



13. Eflima chtta, n. sp. iyvTos, cast.) 



St. 344. April 3, 1876. Lat. T 24' 20" S., long. 14° 28' 20" "W. 

 Ascension Island. 420 fms. Hard ground. 



Shell. — "Very small, with compressed rounded outlines, glossy, 

 with a slightly impressed suture, flat whorls, a short rounded 

 base, oblique pear-shaped mouth, and a small blunt rounded 



