Yl.irilNA. 



ambilioata), iHghtly nmmillate, \VhH- >iutfd. -utim- little 



impressed ; hasc moderately efliiM- ; lip thin, rather pn.dur.-d in the 

 middle, broadly arcuate in front, a little >imi<> us I.ehind. ~< arcely 

 eliannelled ; toward the suture quite rounded. Inner lip di-tiin-t, 

 somewhat calloused behind ; columella with quite a marked told, 

 the axis revolving around the base. Alt. '11, diain. -<>.V> in-h. 

 angle of divergence 180. (Cj> 



San >rnia. 



Cylichwi jilunatn CIM:., Journ. de Conch. 1865, p. 139: Moll. 

 Western N. A., p. 133,307. 



( '. I-ROPINQUA Smith. Unfyured. 



Shell elongated, cylindrical, a little contracted in the middle, 

 white, covered with a pale brown epidermis, browner above and 

 below; transversely very finely undulately striated. Vertex ex- 

 cavated, narrowly perforated in the middle, surrounded by an acute 

 margin. Aperture narrow above, dilated below, lip nearly parallel 

 with the whorl ; columella spirally twisted. 



Alt. 13, diam. 5 mill. (5m.). 



Vancouters Mnd. 



C. propin<ni SM., Ann. Mag. N. H. (4), ix, p. 351, 1872. 



This species in general aspect reminds one of the common (7. 

 arachis Q & G. ; but it is considerably narrower, with the vertex 

 only excavated with a minute perforation, not umbilicated, and the 

 basal margin of the aperture is roundly truncate. ($w.). 



( . A TTON8A Cpr. 



Cylichna (cylindracea var. /) attonsa CPR., Moll. \V. N. A. pp.23, 

 89, 133, 169. 



An undescribed form from the Vancouver district. 



Specie* of Japan <ntd Chin<t. 



C. 8EMi>ri.<-ATA Dunker. PI. 26, figs. 78, 79, 80. 



Shell cylindrical, rather solid, rounded at both ends, white, 

 covered with a pale brown epidermis; delicately and densely lon- 

 gitudinally rugate, transversely silicate at the base; lip acute, some- 

 what straightened ; aperture as usual, dilated in front: columella 

 rimate. Alt. 18, diam. 8 mill. (Dkr.). 



Japan; exact lvc<ility unknown. 



