CYLICHNA. 307 



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

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



d. 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., I. c., p. 153, No. 11). 



Tsu-Sima, Japan, 26 fms. 



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

 dnna 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. t I. 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. 



Cylichna 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 



