610 



side is rather the shorter, the angle of the posterior side is obtuse. 

 Colour pale brownish, with brown angular markings ; it also 

 occurs white. 



Pasacao Bay, Philippines. Cuming. 



8. Meeoe seminuda (pi. exxvi. f. lb), P/dlippi, Abbild. 

 CyM. t. ix. f. 8. An var. C. Birmanica, Anton ? 



M. testa ad umbones et postice costis subplanulatis cincta, 

 subtumida, subsequilatera, postice subrotuudata ; niargine ventrali 

 rotundo; colore pallidissime fulvo, maculis angularibus fuscis picto. 



Ribbed only at the umbones, and a little beyond the posterior 

 half of the shell, wliich is coloured with broad angular brown 

 markings on a very pale ground. More equilateral than the pre- 

 ceding, with the posterior angle and ventral edge rounded. 



Moluccas. Ciiming. 



4. Merge scripta (pi. cxxvi. f. 3, 4, 5, 6, 7, 8). Venus 

 scripta, Linnceus. Donax scripta, Lamarck. 



M. testa laevigata, antice subelongata, postice angulo subacuto, 

 intiis violacea, extiis Kneis acutangularibus scripta, variat purpurea, 

 immaculata ; vel alba, vel aurantia, fusca, scripta. 



In shape and variations of colour like M. picta, from which it 

 differs in having no ribs. 



Indian Ocean. Lamarck. 



5. Merge excavata (pi. cxxvi. f. 13, 14), Kanley, Pro. 

 Zool. Soc. 1842; Recent Shells, p. 109. pi. 15. f. 19. 



M. testa laevigata, subrotundata, lata, antice brevi, angusta, 

 postice expansa ; margine dorsali elevato, angulo obtuso ; margine 

 ventrali rotundato ; colore violaceo vel pallide fulvo, purpureo 

 interruptim radiato. 



Broader and rounder than M. scripta, with the anterior small 

 in proportion to the posterior side, which is broad, with the dorsal 

 margin elevated, the angle obtuse, and the ventral margin much 

 bulged. 



Japan. 



6. Merge subquadrata (pi. cxxvi. f. 9), Sov)erhy,jun. 



M. testa laevigata, postice subquadrata, antice brevi, angusta, 

 margine ventrali subrotundata ; colore pallide fulvo, fusco radiatim 

 maculato. 



