24 TEREBRA. 



T. RADULA, Hinds. PL 7, fig. 17. 



Sutural band and whorls strongly tuberculated by decussating 

 sculpture ; reddish chestnut, white at the suture, with a white 

 periphery-band. Length, 40 mill. 



Puerto Portrero, W. Coast of Central America, 



13 fms. (Cuming). 

 Described from a unique specimen in the Cuiuingian Collection. 



T. VARICOSA, Hinds. PI. T, fig. 12. 



Varicosely distantly ribbed, interstices striately grooved ; 

 whorls convex, constricted around the upper part, sutural band 

 smooth or tuberculate ; olive-brown, chocolate or white, banded on 

 the periphery. Length, 28 mill. 



Gulf of Papagayo, W. Coast of Central America, 



mud, at 23 fms. (Hinds). 

 T. TUBERCULOSA, Hinds. PI. 7, fig. 31. 



Shell rather thin, transparent ash, livid purple towards the 

 apex, obscurely red-spotted next the suture ; whorls slopingly 

 flattened, conspicuously tuberculate on the sutural band, then 

 smooth, and finally longitudinally tuberculated, forming an 

 anguiated periphery. Length, 2 inches. 



Panama (Cuming) ; San Bias (Hinds). 

 T. PLICATA, Gray. PI. 7, fig. 20. 



Yellowish flesh-color; whorls slopingly flattened, the last 

 swollen, longitudinally thinly plicated, spirally very finely 

 prickly-grooved, sutural band distinct. Length, 2 inches. 



Guayaquil, 7 fms., sandy mud (Cuming). 



Appears to be distinguished chiefly by its stout form. 



T. SPECILLATA, Hinds. PI. 7, fig. 18. 



Latticed by longitudinal and spiral sculpture, whitish, with a 

 few large chestnut maculations ; sutural margin irregularly 

 chestnut-spotted. Length, 2 inches. 



San Bias, W. Coaxt of Mexico. 



Very closely allied to T. dislocata, Say, and to T. cancellata, 

 Quoy, which are possibly identical. 



T. CONSPERSA, Hinds. PI. 7, fig. 13. 



Whitish, irregularly chestnut-spotted on the sutural band, 



