653 



umbones rugulosa, grisescente-fulva, minute lineis rabris omnino 

 scripta ; postice subquaclrata ; margiiiibus dorsalibus declivibus, 

 rubris ; costis elevatis, distinctis, postice subaugulatis. 



Shell rather fiattish, squarish at the back^ smooth, strongly 

 roughened near the umbones by the diverging and undulating 

 ribs ; of a greyish- white or pale buff, marked with minute an- 

 gular reddish lines; dorsal margins flattened, red; ribs large, 

 deep cut, with distinct intervals, angular at the back. 



New Holland ; Lamarck. Mr. Gubba, Mr. Hanley, and Mr. 

 Sowerby possess specimens. 



14. Circe crocea (pl.xlix.f.49,50,51,52),G^ray,in Analyst, 

 1838. 



Cir. testa obliqua, forma variante, marginibus rotundatis, albida, 

 epidermide lutea induta, nonnunquam fusco prope umbones bi- 

 radiatim picta, intus lutea, antice conceutrice sulcata, postice laevi- 

 gata ; umbonibus divaricatim rugatis ; lunula et area dorsali sub- 

 purpureis. 



Shell oblique, rather rounded, variable in thickness, white, with 

 a light yellowish epidermis, sometimes with two chestnut bands 

 radiating a short distance from the umbones ; within, yellowish 

 in the centre ; outside, concentrically striated near the umbones, 

 and from the front to the middle of the shell ; smooth at the 

 back ; dorsal margin full, tinged with dull purple ; lunule also 

 tinged with the same colour. 



Red Sea. In the cabinets of Mr. Gubba and Mr. Cuming. 



15. Circe plebeja (pi. cxxxviii. f. 33, 34, 35, 36, 37), 

 Hanley (Cythersea), Wood's Suppl. pi. 15. f. 37. Cyth. erythrsea, 

 Jonas, Philippi, Abbild. pi. ix. f. 2. 



Cir. testa oblique rotundata, lenticulari, minute concentrice 

 striata, albida, fulvo literata, vel fusca, vel fusco variegata ; area 

 dorsali et lunula minute divaricatim striatis. 



Shell rather round, lenticular, concentrically striated, whitish, 

 sprinkled or lettered, or entirely covered with brown; within, 

 pinkish or purplish brown ; posterior and anterior dorsal margins 

 short, generally dark brown or spotted, minutely striated with 

 raised diverging lines. 



New Batavia. Philippi. 



16. Circe minima (pi. cxxxviii. f. 18, 19, 20,21). Venus 

 minima, Montagu, Test. Brit. p. 121. pi. 3. f. 3 ; TwHon, Bill- 



