310 PYRAMIDELLA. 



P. LIGATA, Angas. PI. 74, fig; 29. 



Rather thin, rosy-white, spiral ribs prominent; whorls 6; 

 outer lip simple, columella with a small transverse plait. 



Length, 2 mill. 



Botany Bay, Australia. 



Unfigured Species. 



P. L1RATA, P. SULCATA, P. CINGULATA, P. CIRCINATA, all of 



A. Adams. Japan. 



P. ZIZIPHINA, P. EXARATA, Carp. Mazatlan. 



Section ORINA, A. Ad., 1810. 



P. PINGUICULA, A. Ad. (unfigured). Gulf of Suez. 



P. PYRAMIDALIS (Syrnola), A. Ad. (unfigured). Japan. 



Section ELUSA, A. Ad., 1861. 

 P. SUBULATA, A. Ad. PL 74, fig. 30. 



Umbilicated, apex mucronate, smooth, pellucid, whitish, some- 

 what shining ; whorls plano-convex, strongly longitudinally 

 costate, interstices punctate ; columella uniplicate in the middle, 

 aperture produced and subchanneled below. Length, 9'5 mill. 



Philippines; Japan; Red Sea. 



P. GRACILIS, A. Ad. PL 74, fig. 31. 



Whitish, shining, with a chestnut line above the suture, and 

 on the periphery of the last whorl; whorls flattened, distantly 

 longitudinally costate, interstices smooth. Length, 9 mill. 



Philippines; Japan; Red Sea. 



P. RUPPELLT, Jickeli. PL 74, fig. 32. 



Subrimate, rather solid, white, a little shining, longitudinally 

 elegantly plicate, lightly impressly spirally striate ; whorls 11, 

 planulate, scarcely submargined above; lip slightly sinuate 

 above, columella callously thickened. Length, 12 mill. 



Red Sea. 

 P. METULA, A. Ad. TL 74, fig. 33. 



Whitish, apex a little obtuse; whorls 10, planulate, closely 

 regularly longitudinally ribbed, the interstices spirally striate; 

 lip and columella thickened, the latter with a median plica. 



Length, 13 mill. Philippines. 



