C Y L I < 1 1 N \ . 



- nun , 



I la- tin- fnrm ..!' ( '. n/lxt r,r.)\vii. and the smlptu 

 l>nt diHers from the lattn- in brini: im>re n.l>n>t. and in th<- inner lip 

 brim: turnished with a distinct <blii|ii' plait. < .1 



C. RIMM-A A.Adams. ("////'.'/ "''"' 



Shell ovate-cylindrical, rimate-iiiiilulieate, white, thin, >liin' 

 striated at each end ; aprx perforated; aperture linear, acum; 

 in front, produced; umbilical chink wide; inner lip thin, an 

 simple; outer lip rounded and produced behind the margin, a little 

 straightened. (Ad., L <?., p. 151, no. 4). 



l\"i'fn XI fiit, 40 fathoms. 



Most like C. iimlrilimttt Mont ; but the last whorl is not acum- 

 inate posteriorly, the aperture is produced in front, and the inner 

 lip is long and arcuated. (A<L). 



C. LATIUSCULA A. Adams. Unfigured. 



Shell small, ovate-cylindrical, acuminate in front, wider behind, 

 rimate-umbilicate, white, thin, smooth, shining; apex profoundly 

 perforated; aperture narrow ; inner lip thin, simple, arcuate; outer 

 lip produced behind, broadly rounded. (Ad., 1. c., p. 151, no. 5). 



T'ibu-Shmt, Japan, 25 fathoms. 



Most like C. rimata A. Adams, but is shorter and much wider 

 posteriorly, and the angle of the outer lip is more rounded ; it wants, 

 moreover, the transverse strise at each end. 



C. LEPIDULA A. Adams. Unfigured. 



Shell cylindrical, snowy, solid, polished, in the middle slightly 

 narrowed, posteriorly truncated, the apex slightly perforated, >ur- 

 rounded by an acute margin. Aperture linear; inner lip calloust-d, 

 with a strong fold ; outer lip with inflexed margin. (Ad., L <-.. p. 

 152, no. 6). 



Tsa-Sima, Jujmn, '2ti fathoms. 



This species differs from all others described, in the periomphalus, 

 or hind part of the body-whorl enclosing the sunken apex, forming 

 an acute well defined ridge. It is a small, white, highly polished, 

 opaque shell. (AdS). 



C. CONSOBRINA A. Adams. Unfiynr"!. 



Shell cylindrical-ovate, slightly rimate, white, rather solid, longitu- 

 dinally striated, and striated at both ends, the strhe distant ; 



