290 CLATHURELLA. 



C. PUNCTICINCTA, Reeve. PI. 16, fig. 79. 



Longitudinally rather obscurely plicated, interstices very 

 minutely striated, sinus rather large; whitish, with an inter- 

 rupted band of chestnut on the periphery, coloring the interstices 

 of the ribs so as to form a circle of spots. Length, 8 mill. 



Hab. unknown. 

 C. RETUSA, Hinds. PL 16, fig. 83. 



Ribs rounded, close, forming a coronal on the shoulder-angle, 

 crossed by revolving striae ; orange-brown, purplish at the apex. 

 Length, 8 mill. 



Straits of Macassar, sand at 8 fms. (Hinds). 



C. EXIMIA, Reeve. PI. It, fig. 5, 



Shell with narrow longitudinal lamellae, fimbriated by the 

 intersection of revolving sculpture ; sinus rather indistinct, 

 canal slightly twisted. Length, 18 mill. 



Philippines, under stones at low-water (Cuming). 



I am not acquainted with this Trophon-like species. The sinus, 

 though somewhat indistinct, is fully sufficient, according to 

 Reeve, to place it in the Pleurotomidse. 



C. SEMIGRANOSA, Reeve. PL 11, fig. 98. 



Whorls concave round the upper part, nodosely ribbed in the 

 middle, granulated beneath ; whitish, encircled round the lower 



part with an orange band. Length, 8 mill. 



Hab. unknown. 



C. CAVERNOSA, Reeve. PL 17, fig. 10 ; PL 19, fig. 69. 



Slightly angulated above, longitudinally distantly ribbed, 

 latticed with narrow raised revolving ridges, cavernously grooved 

 near the base ; chestnut, lighter on the ridges. 



Length, 6-7 mill. 



Philippines (Cuming) ; Viti Is. (Garrett). 



C. infrasulcata, Garrett (PL 19, f. 69), is a synonym: the 

 figure does not represent the type specimen nearly as well as 

 does that of Reeve. 



C. MICANS, Hinds. PL 17, fig. 8. 



Chestnut-color, with small, rather sharp, whitish, oblique ribs, 

 fading towards the suture ; back of last whorl smooth ; lip thin, 

 acute, smooth within. Length, 8 mill. 



Gulf of Papagayo, mud at 14 fms. (Hinds). 





