342 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. VIII. 
D. abbreviatus (Lam.) is a small, thick, very inequilateral shell 
finely concentrically striated, varying in colour from pure white to 
purple-brown. When coloured there is generally a light ray from umbo 
to ventral border. Hinge-teeth, one prominent in one valve fitting bet- 
ween two smaller ones in the other. 
Size 1"* 8". 
D. incarnatus (Chem.)=.D. dyson (Desh). —A pretty little whitish 
shell often delicately tinged with yellow, pink or purple. Smooth and 
shining, truncated end concentrically furrowed. Apex pointed and 
straight, giving the shell an angular shape. 
Size 4" 2", but found much larger than this at Ratnagiri. 
pln des airata (Desh.)\—This shell, being the only true purple 
bivalve I have found, will not need much description. It is thin, 
oblong, somewhat transparent, generally partially covered with a 
greenish epidermis, and with 2 light rays running from umbo to 
ventral border in a slanting direction. 
Length 12” x 2". 
The Tellinas form a very numerous family generally taken by itself 
and even much subdivided. 
The Bombay specimens are thin flattish mequilateral shells generally 
white, and the posterior side (7. ¢., the side with the ligament) is 
truncated or more frequently plicated. | 
Hinge-teeth insignificant, sometimes obsolete, 
Sinus in all cases very large. 
The following are all white. 
T. sinuata (Spengler).—Large, very flat, oval, very silky, and 
finely concentrically striated ; posterior side produced and slightly 
flexuous, 
Size 23” x 18". 
T. capsoides (Lam.).—Also flat, chalky-white, slightly rough, and 
clearly concentrically striated ; posterior side short, plicated, and trun- 
cated ; anterior rounded and faintly radiately striated, 
Size 13” x 12". 
T. edentula (Spen.).—Large, thin ; umbu pointed, rather swollen and 
angular ; inequilateral ; posteriorly strongly flexuous, anteriorly pro- 
duced and oval ; smooth, shining, and striated with lines of growth, i) 
Size 23" x 14”. 
