244 ASTIIALIUM. 



late, with concentric tuberculate line ; umbilical tract white, callous,, 

 depressed ; aperture transversely dilated, subrhomboidal, angulate, 



Alt. 65, diam. 95 mill. Japanese Seas- 



A rare species in collections. 



A. TAYLOKTANr3i K. A. Smith, 1880. PI. 63, fig. 31. 



Shell turbi nate -conic, flattened below, imperforate, purple rose 

 colored, marked with indistinct and very oblique striirations above,, 

 below white; spire short-conic, with rectilinear outlines; whorls 

 about 8, subconcave above, slightly convex, with a subsutural sub- 

 squamose carina, and encircled by numerous subequal granulose 

 lira?: last whorl acutely carinated below the middle, slightly exca- 

 vated above and flat below the carina; base white witli an outer 

 zone of purple red, concentrically ornamented with series of gran- 

 ules ; umbilical region with a white smooth callous, its margin stained 

 with yellow. Columella arcuate, white calloused. 



Alt. 41), diam. 49 mill. 



Habitat nnl-inncn. 



The original figure and description are given. 



It probably does not belong to Pomaulax. The operculum is 

 unknown. 



Subgenus PACHYPOMA dray, 1850. 



Shell similar in form to Pomaulax, but umbilical tract scarcely 

 ribbed ; operculum oblong, narrow, the nucleus terminal ; outside 

 very convex, white, smooth, with a broad central convexity and ob- 

 solete narrow side ribs. 



( 'ii/iforniait Prori //<>. 



I restrict this subgenu> to A. inequale, the first species mentioned 

 by Gray in his description. A. ccelatum Gmel., usually classed here, 

 belongs to a wholly different section of the genus. 



A. INJ:>\I AIJ; Martyn, 1784. PI. 57, figs. 51, 52. 



Shell conic, imperforate, rather solid, with a chestnut brown cuti- 

 cle, lighter beneath ; whorls 6-7, planulate above, sutures slightly 

 impressed, bordered below by a series of obliquely descending cor- 

 rugations, which are cut into granules by from one to five spiral 

 furrows ; periphery carinate, subspinose on the upper whorls, usual- 

 ly nearly smooth on body-whorl; base nearly flat, concentrically 

 lirate, the line more or less tuberculate, five or six in number, their 

 interstices regularly striate ; aperture subtriangular, white within, 



