FYRAM1DELLA. 303 



rounded riblets, with occasional darker macnlations, 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 pupiforin, with obtuse apex and elongated aperture ; 

 light fulvous, with pale chestnut maculations in revolving series ; 

 suture and periphery channeled ; columella triplicate. 



Length, 12 mill. 



W. Coast of Mexico. 



P. clavuluSj 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 body-whorl, suture impressed; "columella 

 with a prominent twisted Ibid encircling the pillar." 



Length, 6 mill. 



Port Jackson, Australia. 



According to the description this would be a Syrnola, but the 

 figure shows two columellar folds. , 



P. PAUMOTEXSIS, 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 Lonchxus. 



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

 an Obeliscus = Pyramidella). Japan. 



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



P. SOLIDA, Sowerby. Tranquebar. 



P. TASMANICA, Petterd. Tasmania. 



