224 CTLLENE. 



G. sulcata, A. Ad. (fig. 559). is certainly identical, and G. uni- 

 maculata, A. Ad. (fig. 560), is merely less sculptured, with a 

 brown spot on the shoulder. 



C. LUGUBRIS, Ad. and Reeve. PL 84, figs. 561-563. 



Yellowish, light brown or chocolate, with sometimes two or 

 three revolving series of reddish brown spots. 



Length, '50-'75 in. 



Sooloo Isles ; Singapore, 6 fathoms, mud ; Malacca, 



6 fathoms, sand. Cuming. W. Africa? Japan. 



G. fuscata, A. Ad. (fig. 562), from Malacca and Singapore, 

 and G. pallida, A. Ad. (fig. 563), from W. Africa? are certainly 

 the same. The variation of this type from G. lyrata, consists in 

 the smaller, more numerous ribs, and is probably not a good 

 distinctive character. 



C. OWENI, Gray. PI. 84, figs. 564-566. 



Yellowish brown, maculated or blotched with red-brown. 



Japan ; Senegal, 



The rather close ribs are not prominent, and are crossed by 

 pretty strong revolving lines, giving a closely cancellated appear- 

 ance. G. Senegalensis, Petit (fig. 566), and G. Orientally A. 

 Ad, (fig. 565), appear to be synonymous with this form. 



C. PULCHELLA, Ad. and Reeve. PI. 84, figs. 567-571. 



Flesh- or ash-color, sometimes banded or spotted in revolving 



series, or blotched with reddish brown. 



Borneo ; Japan. 



Ribs and revolving striae both obsolete, except a few impressed 

 revolving lines at base ; almost positively a smooth state of G. 

 lyrata. I unite with this C. Grayi, Reeve (fig. 568), C.glabrata, 

 A. Ad. (fig. 569), C. striata, A. Ad. (fig. 570), and G. Guillaini, 

 Petit (fig. 571). 



C. CONCINNA, Soland. PI. 84, fig. 572. 



Fusiform, pale, blotched with brown, smooth. Length, -5 inch. 



Hob. unknown. 

 Probably only a depauperate form of the last. 



C. PLUMBEA, Sowb. PI, 84, figs. 573, 574. 

 Chocolate-brown, ribbed or smooth. 



Hob. unknown. 



