HY8, 



twist so conspicuous in that ipeoies, My ('him-~r ipeeiei i- -haped 

 kke a little fat Amjihorn ( .1 



A. s< !:<>i;i< ri.ATA A. Adam-. 1'iifit/tirfid. 



Shell ovoid, ventrico-e. narrowed behind, acuminate in front, 

 dull white, broadly and profoundly umbilicated, margin of the um- 

 bilicus anirulated ; aperture much produced at both ends; columcl- 

 lar margin straight, simple; anteriorly rounded (Ad., /. r. p. 158). 



Tabn-Slni'i, Japan, 25 fms. 



The only shell which resembles this singular little species is A. 

 tortuosa A. Adams ; but the great peculiarity of the aperture, which 

 is pointed at both ends and produced beyond the body whorl, dis- 

 tinguishes it from all others 



Section ALICULA Ehrenb., 1831. 



A. CYLINDRICA Helbling. PI. 33, figs. 60, 61, 62, 63, 64. 



Shell elongated, oblong-oval or subcylindrical, solid, white under 

 a very thin buff cuticle; apex closed; body whorl more or less con- 

 vex, sometimes indistinctly angular above the middle, sculptured 

 with incised spiral lines which become closer toward the ends, and 

 are a hue nt from the smooth middle third. Lip heavy, rising oblique- 

 ly far above the vertex, contorted and angularly plicate; outer lip 

 gently convex ; columella short, with a heavy, reflexed lunate cal- 

 lus, its outer edge not appressed, inner edge subconcave, without 

 fold or obvious truncation. Alt. 27, diam. 13-14 mill. 



Philippine to Torres Strait, eastward to Fiji Is.; W&tward to 

 Chiton, Andaman I*., Red Sea, Mauritius <m<{ Seychelles />. 



Bull<( ci/llndrica HELKLING, Abhandl. einer Privat Gesellsch in 

 Bohmen, iv, p. 122, pi. ii, f. 30, 31, 1779. A. AD., Thes. Conch, ii, 

 p. 585, pi. 125, f. 114. Atys cylindrica SOWB., Conch. Icon. t. 1, f. 

 4. SMITH, P. Z. S. 1878, p. 819. MARTKNS, Mee res fauna Maurit. 

 p . :;i)3._ BRAZIER, P. L. S. N. S. W. ii, p. 85. WATSON, Chall. 

 Rep. Gastr. p. 639. E. A. SMITH, Ann. Mag. N. H. (4), ix, p. 

 344._# u // a (Atys) elongata A. AD., Thes. p. 587, pi. 125, f. 121. 

 .1. elongata SOWB., Conch. Icon. f. 8. BRAZ., P. L. >. \. B, \V. ii, 

 p. &5.Bnll<i solida BRUC;., Encycl. M.'th. i, p. M74. pi. 146, f. 1356, 

 ]:r>7. Ai... The* p. 585, pi. 124. f. 112, 1 i:l. .1. *n/i.t,t S,>wi;., C. 

 Icon. f. 4. BHA/... I'. L. S. N. S. \V. ii, p. 85. ISSKL, Malac. Mar. 

 Rosso, p. 16-S. Aty* <iiigu*tntit SMITH, Ann. Ma-. N. 11. 4 . ix, p. 

 346. See Ann. Ma-. ('*), xvii, p. 132. .1. tuceisa A. AD., Th. 



