CYLICHNA. 307 



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

 middle. It is very unlike any other hitherto described. (Ad.}. 



C. CANDIDULA A. Adams. Unfigured. 



Shell cylindrical, white, closely transversely 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., 1. c., p. 153, No. 11). 



Tsu-Sima, Japan, 26 fms. 



This species partakes of the character of C. venustula and con- 

 tinna with regard to sculpture and general appearance, but is elon- 

 gated and cylindrical. (Ad.}. 



C. INEDITA A. Adams. Unfigured. 



Shell cylindrical, subtruncate 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). 



Mino-Sima, Japan, 63 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. Unfigured. 



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

 cylindrical, minutely perforated at the vertex, little shining, 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 2 mill. (Sm.}. 

 N. lat. 42 52', E. Ion. 144, 40', off Japan, in 48 fms. 



Cyliehna pertenuis SMITH, Ann. Mag. N. H., (4), xvi, p. 113. 



The longitudinal striation is very minute, and only visible under 

 a powerful lens. The form is scarcely sufficiently pyriform to war- 

 rant me in placing this species in the subgenus Sao. (Sm.}. 



C. VILLICA Gould. Unfigured. 



Shell minute, ovate-cylindrical, subconic at both ends, banded 

 with white and ferrugineous, sculptured with revolving lines and 



