PLEUROTOMA. 167 



P. ABBREVIATA, Reeve. PL 3, fig. 25. 



Shell rather stout, with a prominent shoulder-keel, composed 

 of two approximate ribs, and less prominent revolving ribs and 

 lines below it, articulated with dark chestnut; above the keel 

 concave, with a strong rounded sutural rib, marked by large dark 

 chestnut spots. L. 33, diam. 12-15 mill. 



Red Sea, Mauritius, Philippines, Viti Islands. 



P. USTULATA, Reeve. PL 3, fig. 26. 



Shell short and stout, with channeled sutures and a carination 

 composed of a pair of ribs, above and below which the surface is 

 irregularly lirulate ; pale burnt-brown, with transverse chestnut 

 spots, and darker spots on the keel. L. 32, diam. 13 mill. 



Mauritius. 

 P. PHELIPINERI, Tenison-Woods. PL 34, fig. 82. 



Shell elongately fusiform, ovate, turreted, rather solid, shining, 

 pale chestnut, at the suture dotted fulvous ; spire conical, a little 

 longer than the aperture : whorls nine, convex, sloping, angular 

 above and canaliculate, granular at the angle and sutures ; 

 spirally lirate and very finely striate lengthwise ; lirae broad, 

 rounded ; interstices furnished with two or three lirulse ; apex 

 acute, nucleus smooth, rounded ; aperture widely ovate, labrum 

 acute, sinus broad and deep, lip reflected, white, throat polished, 

 canal short, scarcely recurved. The granules at the angle wide 

 and numerous. L. 34, diam. 15 ; long, apert. 15, lat. 8 mill. 



Tasmania. 



Figured from a specimen kindly sent by Mr. C. E. Beddome. 



P. VIRGINEA, Valenciennes. PL 34, fig. 80. 



Shell short, with obtuse canal and spire, with strong revolving 

 ribs ; whitish, maculated and spotted with chestnut. 



Length, 19 mill. Japan (Schrenck). 



Peculiar in its stumpy form : it is very different from Clava- 

 tula virginea, Beck. 



Cingulatde. 



Shell usually brownish or horn-color, unspotted, with 

 strong, sharp revolving ribs. 



A. With long canal. 

 P. FAGINA, Ads. and Reeve. PL 3, fig. 22. 



Shell dark chestnut-brown, with close, equal revolving ribs and 

 narrower equal grooves, aperture purple. Length, TO mill. 



12 China Sea. 



