624 



41. Cyther^a erycinella (pl.cxxxi. f. 85), Lamard; Anim. 

 s. vert. C^th. no. 17. 



Cyth. testa ovali, Isevi^ fusco distanter radiatim fasciata ; latere 

 antico brevi_, sulcato, latere postico subacuminato, planulato; 

 lunula parva, distincta. 



From general appearance supposed by some authors to be the 

 young of C. erycina, but it is more pointed at the posterior side, 

 and the grooves only reach from the anterior side to the middle of 

 the shell. 



Eed Sea. 



42. Cyther^a semisulcata (pi. cxxxi. f. 83), Soioerhi/, jim. 



Cyth. testa C. erycinellce, simili, sed magis elongata et ovali ; 

 alba, macuhs tribus latissimis subcseruleis radiatim albo inter- 

 ruptis medio picta. 



Besides the form, wliich is more elongated and more regularly 

 oval, the colour of this shell, consisting of three very broad 

 radiate patches in the centre of a white ground, distinguishes it 

 from C. erycinella. One specimen from Australia, in Mr. Cuming's 

 collection, is all we have seen. 



43. CytheRjEa pulchra (pi. cxxx. f. 73), Gray, Wood's 

 Suppl. t. 2. f. 16. Hartley, Sp. of Shells, p. 104. 



Cyth. testa ovali, laevigata, palhde fulva, griseo marmorata, 

 lineis purpureis radiata, antice sulcata, brevi ; lunula pui'purea, 

 impressa ; area dorsaH livida, angulatim fusco-lineata ; latere 

 postico ad terminum subacuminato. 



Shell oval, smooth, pale fawn-coloured, marbled with brownish- 

 grey, radiated with dark purpHsh broad lines ; lunule impressed, 

 dark purple ; dorsal area grey, with fluctuating angular lines 

 across ; anterior side short, gi'ooved ; posterior side rather length- 

 ened, rather acuminated at the end, and smooth. 



Red Sea. 



44. CYTHERiEA SINENSIS (pi. cxxxi. f. 79, 80). Vcnus Clii- 

 nensis, Cher/in. f. 1976. 



Cyth. testa subovali, subdepressa, dimidiatim sulcata, alba, 

 rufo radiata et maculata ; margine dorsali albo, elevato ; lunula 

 impressa, rubra ; latere postico subacuminato. 



Shell more broad and depressed than the preceding members 

 of the same group, with the sides more elevated towards the 

 umboues. 



Cliina. 



