i VI. H UNA. 



A small, thin, elongate-oval species, somewhat contracted \\\ the 

 middle. It is very unlike any other hith* -rto d.-,rr il>-d. Ad.}. 



C. CAMUIMI.A A.Adams. ! 'iip'/nred. 



Shell cylindrical, white, closely tnm>versely striated throughout, 

 posteriorly subtruncate, anteriorly produced and somewhat acumi- 

 nate ; aperture linear, the inner lip somewhat thickened, obsoletely 

 uniplicate in front; outer lip a little straightened in the middle, 

 slightly produced behind and rounded. (Ad., /. '., p. l. r >:i, No. 



/' H&ma, J<i/>'in, 26 fms. 



This species partakes of the character of ('. 'rmixiuht and 09ft- 

 rinn<t with regard to sculpture and general appearance, but is elon- 

 gated and cylindrical. (Ad.). 



C. INEDITA A. Adams. Unfiyured. 



Shell cylindrical, subtruneate posteriorly, acuminate in front, 

 white, thin, longitudinally strigose ; aperture linear, anteriorly pro- 

 duced ; inner lip elongate, flexuous, with a conspicuous parietal 

 fold, outer lip with straight margin, posteriorly subproduced and 

 rounded. (Ad., 1. c., p. 153, No. 12). 



MiiHi-Xini't. J'ljtnn, <i:5 fms. 



A small, thin, strigose species, with the aperture anteriorly pro- 

 duced, and with an elongate subspiral fold at the fore part of the 

 inner lip. (Ad.). 



C. PERTENUIS E. A. Smith, f'nnt/tired. 



Shell small, slightly umbilicate, very thin, dull whitish, pyrifurm- 

 cylindrical, minutely perforated at the vertex, little >hining, longi- 

 tudinally very delicately and very closely arcuate striate ; aperture 

 very narrow above, slightly produced above the vertex, dilated at 

 the base ; columella rather straightened, rather thickened, slightly 

 reflexed toward the umbilicus. Alt. 3$, diam. nearly 'J mill. . > 



N. lit. VI 52', K. /on. 144, 40', offju^m, in 48 \'m<. 



Cylichna pertenuis SMITH, Ann. Mag. N. H., (4), xvi, p. 1 l:j. 



The longitudinal striation i? very minute, and only visible- under 

 a jinwurful lens. The form i- -cai<-rly sufficiently pyrit'orm to war- 

 rant me in placing this species in the suli:rnu- s S/t.). 



C. vii.i.ic.v Gould. Uufijnred. 



Shell minute, ovate-cylindrical, suheoiiic at hth ends, banded 

 with white and ferru-jiiu-nus, -i-ulntured with revolving lines and 



