tYRAMlDELLA. 309 



P. HYALINA, Dkr. PI. 73, fig. 25. 



Whitish, h^'aline, smooth, polished ; whorls somewhat convex, 

 suture deep; lip quadrilirate within, columella uniplicate and 

 sinuate above. Length, 5"5 mill. 



Japan. 



Unfigured and Undetermined Syrnolse. 



P. BUXEA, Gould. Japan. 



P. BiFASCiATA, Woods. Tasmania. 



P. BIZONALIS, p. D^DALA, P. LACTEA, P. MERA, P. PISTILLUM, 



P. TERETiuscuLA, all of A. Adams. Japan. 



P. suBULA, Gould. China Sea. 



P. LUCiDA, A. Ad. Red Sea. 



P. TENuiscuLPTA, Lischkc (figure inaccessible to me). Japan. 



Section Agatha, A. Ad., 1860. 



P. AusTRALis, Angas. PL 74, fig. 27. 



Acuminatel}' ovate, rather thin, opaque, whitish; whorls 8, 

 slightly convex, suture a little channeled ; columella with a strong 

 spiral plait. Length, 8 mill. 



Port Jackson^ Australia. 



Section Amatiiis, A. Ad., 1861. 



P. VIRGO, A. Adams (unfigured). Korea Strait; 46 fms. 



The following species are added by Mr. Adams, all of them 

 unfigured and from Japan : 



P. PRODUCTA (Odostomia) and P. pellucida, P. eburnea and 

 P. coNCiNNA, described as Menestho. 



Section Oscilla, A. Ad., 1867. 

 P. ANNULATA, A. Adams. PI. 74, fig. 28. 



Whitish; whorls numerous, fiattened, spirally ribbed, the 

 interstices longitudinally striated ; columella with a single 

 posterior plication, lip subcrenulated, interior Urate. 



Length, 5 mill. 



Philippines; Singapore; Japan. 



