PYR AMIDE LLA. 303 



rounded riblets, with occasional darker maculations, especially 



on the base, suture and periphery channeled ; aperture channeled 



at the base, columella straight, three plaited. Length, 15 mill. 



Sandwich Islands. 

 P. Achates, Gould. PI. 73, fig. 91. 



Shell pupiform, with obtuse apex and elongated aperture ; 

 light fulvous, witli pale chestnut maculations in revolving series; 

 suture and periphery channeled ; columella triplicate. 



Length, 12 mill. 



W. Coast of Mexico. 



P. clavulus, A. Ad., is a synonym. 



P. JUCUNDA, Angas. PI. 73, fig. 92. 



Smooth, shining, white, with two chestnut bands on each 

 whorl, three on the bod^-whorl, suture impressed; "columella 

 with a prominent twisted fold encircling the pillar." 



Length, 6 mill. 



Port Jackson^ Australia. 



According to the description this vvould be a S)jrnola, but the 

 figure shows two columellar folds. 



P. Paumotensis, Tryon. PI. 73, fig. 93. 



Shell thin, smooth, hyaline, white, upper whorls suddenly taper- 

 ing to an acute apex, base slighty produced ; whorls 9, convex, 

 suture margined ; columella slightly callous, with two oblique 

 plaits, the lower one most conspicuous, the upper smaller and 

 deep-seated. Length, 10 mill. 



Paumotus and Society Islands. 



The form of the spire and position of the plicae indicate for 

 this species a distinct section of the genus. It much resembles 

 Agatha Australis, Angas, in the lower plication. Described as 

 P. hyalina, Garrett; I have changed the name on account of P. 

 hyalina, Dunker. 



Unfigured Species of Pyramidella and Lonchseus. 



P. viTREA, A. Ad. (Described as a Syrnola, but afterwards made 

 an Obeliscus = Pyramidella). Japan. 



P. TRiFASCiATA and P. EBURNEA, A. Ad. Japan. 



P. SOLIDA, Sowerby. Tranquebar. 



P. Tasmanica, Petterd. Tasmania. 



