342 OF THE MOLLUSCA OF THE ' CHALLENGEE ' EXPEDITION. 



2, Oliva (Olitella) ephamilla, n. sp. (e^ajutWos, a matcli for 

 another.) 



St. 122. Sept. 10, 1873. Lat. 9° 5' S., long. 34° 50' W. Off 

 Pernambuco. 350 fms. Mud. 



Shell. — Very small, oblong, glossy, white, with a high blunt 

 spire, a conical base, and a long narrow mouth. Scv2pture. Longi- 

 tudinals — the lines of growth are barely recognizable. Spirals 

 — there is scarcely a faint appearance of these. Oolour probably 

 porcellaneous white in the living specimen. S^ire high, convexly 

 conical, minutely scalar from a very small projection below the 

 suture. A2}ex bluntly rounded. Whorls 4|, with a minute pro- 

 jection below the suture, very slightly convex at the sides. Su- 

 ture minutely perpendicularly * channelled. Mouth oblong, small, 

 pointed and deeply channelled above, slightly narrowed below. 

 Outer Uj} sharp, prominent, regularly arched from the body to 

 the point of the pillar, not being in the slightest degree emarginate 

 in front. Inner lip : there is a thick, irregular-edged pad, which in 

 front scarcely coils round the front of the bent, twisted, short, 

 truncated, and toothless pillar. H. 0'16. B. 0*07. Penultimate 

 whor], height 004. Moutli, height 009, breadth 0-03. 



The name of this little species is meant to signalize its remark- 

 able resemblance to some of the minute Achatinas, such as Gionella 

 acicida, Miill., or something between that and Lovea leacociana 

 Lowe. Thinking it approached O. tehuelchana, d'Orb., I asked 

 Mr. E. A. Smith to compare it with the type of that sjDecies 

 preserved in the British Museum. He replies : — " I am sure that 

 your shell is not O. tehuelchana, d'Orb. This has the whorls flat at 

 the sides and separated by a sharply defined groove at the sutures; 

 yours has the whorls a little convex in outline and differently 

 canaliculate at the sutures." Than O. myridiana, Duclos, this 

 ' Challenger' shell is much larger, is different in colour and texture, 

 and has a much coarser spire and apex. 



3. Oliva (Olitella) vitilia, n. sp. 



St. 24. Mar. 25,1874. Lat. 18° 38' 30" N., long. 65° 5' 30" W. 

 JST. of Culebra Island, St. Thomas, Danish W. Indies. 390 fms. 

 Coral-mud. 



Shell. — Small, oval, glossy, with a short, blunt, subscalar spire, 

 and in front blunt and rather deeply sinuated. Sculpture scarcely 



* /. e. parallel to the axis, in which sense I would propose to use the word 

 " axially.' 



