94 TESTACEOUS MOLLUSCA. 



white within ; hinge narrow, with the lateral teeth short, and two 

 cardinal ones in each valve, with the rudiments of a third in the 

 left. 1. — Islands in the S. Seas.'^ 



C. Vanikoressis. Quay. Ast. t. 82./'. 4, 5. Roundish, de- 

 pressed, rather solid, irregularly striated, with the umbones minute, 

 and the cuticle brown ; white within, hinge narrow, with three 

 teeth, the lateral ones short, narrow, and far from prominent — 

 Vanikoro. 



C. Oblonga. Quoy. Ast. t. S2.f. 6, 7, 8. Transversely ovate, 

 with the posterior extremity sub-angulated, rather turgid, thin, ine- 

 quilateral, finely striated, and the cuticle brown ; within bluish 

 white, and the palleal scar posteriorly sinuous ; hinge narrow, with 

 three teeth, and the anteiior lateral one obsolete, the posterior pro- 

 duced. — (Resembles a Venus in shape.) 



C. SuMATRENsrs. Sow. G. — Reevc. t. 63. Roundish oval, 

 gibbous, thick, with the beaks eroded, and the cuticle greenish 

 brown : hinge with three cardinal teeth, two of which are larger, 

 angulated, and sub-bifid, the lateral ones short and finely wrinkled. 

 ■ — Sumatra. 



C. Mexicana. Brod. and Sow. Z. J. 4. Elliptic, ventricose, 

 white under an olivaceous cuticle, rounded at the ends, posteriorly 

 shorter : inside whitish, varied with reddish violet, teeth small and 

 obtuse. l^Q . . Iy'j. — Mexico. 



C. AuSTRALis. Desh. E. 2. />. 50. Ovate-oblong, somewhat 

 depressed, thin, fragile, greenish brown, and marked with extremely 

 fine irregular concentric strise ; orange within. — New Holland. — 

 Resembles a Cyclas.'^ 



GALATHEA. 



Equivalve, sub-trigonal, covered with a greenish epidermis ; pri- 

 mary teeth grooved, two in the rigid valve, joined at their base ; 

 and three in the other, the intermediate one being .'ieparate and 

 jn-otruding ; lateral teeth distant ; ligament external, short, 

 turgid, and jJf'ominent ; nyniphcs rather prominent. 



G. Radiata. Lam. — Be. t. 73. f. 3. — Tellina Hermaphro- 

 DiTA. n. p. 167.— Venus H. Gmel.— W. t. 8. /". 116.— V. 

 Paradoxa. JD. p. ISO.— Born. t. 4./. 12, 3.— List. t. 158./. 



1 Quite distinct from the C. Cyprinoides. Gray. Ann. Phil. 

 25. — W. S. 2. Vemis. f. 14. Triangular, heart-shaped, gibbous, 

 olive colour, concentrically grooved ; hinge thickened, the lateral 

 teeth smooth ; the anterior one conic and approximated. 1^ . . I^. 



" See too the C Papua of Lesson. — C. Paranicensis and Va- 

 riegata of D'Orb. in Mag. de. Z. 1835. and C. Kecaudreni of 

 Lesson, in Voy. de Coq. t. W.f. 3. Compare likewise the C. Si- 

 miles. W. S.t.2.f. 5. 



