80 CLASS I. TROPIOPODA. ORDER I. BIMUSCULOSA. 



PI. LV. Fig. 3. 



Tellina radiata, Linnaeus, Syst. Nat., p. 1117. Lamarck, Anim. sans 

 vert., new edit., vol. vi. p. 187. Enc. Me'th. pi. 289. f. 2. 



PI. LVI. Fig. 1 . 



Tellina rosea, De Blainville, Manuel de Malacologie, p. 549. 

 Tellinides rosea, Sowerby. 



PI. LVI. Fig. 2. 



Tellina Timorensis, De Blainville, Manuel de Malacologie, p. 450. 



pi. 72 f. 2. 

 Tellinides Timorensis, Lamarck. 



CORBIS, Cuvier. 



Testa transversa, a?quivalvis, subsequilateralis, uinbonibus opposite in- 

 curvis ; dentibus in utraque valva cardinalibus duobus, et laterali- 

 bus duobus, postico ad cardinem propius admoto, antico remoto. 

 Ligamentum externum. Impressio muscularis pallii simplex, in- 

 tegra. 



This characteristic genus was instituted by Cuvier ; its beautiful shell 

 may be easily recognised by the longitudinal and transverse fimbriated 

 undulations or lamellar ridges crossing the external surface of the valves, 

 and diverging also from the umbones to the margin. It is always of a 

 clear white colour, sometimes tinged or radiated with pink, and is thus 

 described. 



Shell transverse, equivalve, nearly equilateral, with the umbones curved 

 inwards. There are two cardinal teeth in each valve, and also two late- 

 ral, one of which is situated near the cardinal teeth, the other remote, 

 near the termination of the ligament which is external. The muscular 

 impression of the mantle is simple and entire. 



