CHAROPA. 213 



C. FRICATA, Gould. PL 62, figs. 47-49. 



Widely umbilicated, thin, greenish corneous, with radiating 

 costulations above, some branching, smooth below; whorls 4j, 



suture impressed. Diam. 17 mill. 



New South Wales. 

 Reeve's figure does not represent the species. 



C. CYGNEA, Benson. PL 62, fig. 50. 



Widely umbilicated, thin, diaphanous, rather distantly mem- 

 branously ribbed, corneous; whorls 4V, convex. Diam. 4 mill. 



W. Australia. 

 C. SUBLESTA, Benson. PL 62, fig. 51. 



Rather widely umbilicated, thin, very minutely costulate- 

 striate, reddish corneous above, corneous below; whorls 4, 



suture impressed. Diam. 3'3 mill. 



Australia. 



Reeve remarks that this shell proves to have an operculum, 

 and consequently to be cyclostomoid ; an evident error, as 

 pointed out by PfeifTer. 



C. RADIARIA, Pfeiffer. PL 62, fig. 52. 



Nearly covered perforate, somewhat thin, striulate, scarcely 

 shining, diaphanous, yellowish white, with darker strigations 

 above ; whorls 5J, periphery very obsolete!} 7 angulated, base 



flattened. Diam. 10 mill. 



Solomon's Is. 

 C. TIMIDA, Hornbr. et Jacq. PL 62, figs. 53-55. 



Perforate, striate, grayish corneous; whorls 7, the last 



/ / o */ / 



rounded. Diam. 11 mill. 



New Guinea. 

 C. PORTIA, Gray. Yol. I, t. 60, f. 70-72. 



This species is described on page 252, of Yol. I, as an Elaea ; 

 Pfeiffer places it in Thalassia. C. Kappa, Pfr. (PL 63, figs. 60- 

 62), and (7. collyrula, Reeve (PL 62, fig. 56), may be added to 

 the sj'nonymy. 



C. SANDWICENSIS, Pfr. PL 62, fig. 57. 



Umbilicated, discoidal, striated, somewhat shining, yellowish 

 corneous ; whorls 5-6, slowly increasing; umbilicus wide. 



Diam. 18 mill. 



Sandwich Is. 



