74 TESTACEOUS MOLLUSCA. 



distinct : convex valve with the anterior slope flattened : inside with 

 two anterior obhquely radiating ribs. l^. 



T. Striata.— SoLEN S. Cliem.f. 57, 8.— Gmel. 3227.- D. p. 

 66. — W. t. 3.y. 24. Oval, diaphanous, subequi valve, posteriorly 

 rather longer and rounded, anteriorily obtuse, ventral edge slightly 

 arcuated : glossy, thin, rather depressed, strongly striated trans- 

 versely, pink with numerous narrow white rays, a solitary all but 

 primary lateral tooth in one valve, cardinal teeth obsolete. 1 . . 1|. 

 — Nicohar.^ 



T. Emarginatxjs. Sow. Tank. Oblong, inequilateral, smooth- 

 ish, anteriorly sub-angulated and emarginated, the slope concave in 

 both valves, posteriorly twice as long, subattenuated and rounded : 

 umbones pale orange and within two darker oblong orange stains, 

 passing from the umbo to each muscular scar : a symmetrical fold in 

 each valve. — Brazil. — T. Oblovga of Chemnitz, f. 87, much re- 

 sembles it, hut has no lateral tooth. 



T. Coccinea.-^Tellina C. Gmel. 3236.— D. p. 87.--Ch.f. 

 109. — W. t. 4. f. 42. Oval, inequivalve, rather compressed, 

 rounded at both ends, posteriorly rather longer and broader, very 

 thin, pellucid, uniform rose-colour with closely set transverse strife, 

 the alternate ones only crossing the anterior slope : nymphse pro- 

 minent : in one valve two small cardinal teeth with an approximate 

 lateral in the other, f . . \^— Mediterranean ? 



T. Purpureus. Brad, and Sow. Z. J. 4. — Beechey Zool. t. 

 A2.f. 2. — An. Tellina Rosea Lam.? Oblong, compressed, sub- 

 equilateral, purplish rose-colour, prettily decussated, anterior side 

 sub-acuminated and slightly emarginated. 1| . . 2^^. — Pacific. 



T. Triangularis.— Tellina T. Chem.f.S5.—D.p.70. — Desh. 

 in Lam., vol. 6. p. 209.— W. t. 4. /. 33.— T. Politus. Sow. 

 Tank. Ovate-triangular, greyish white, transverse, inequilateral, 

 depressed, posteriorly shorter and rounded, anteriorly produced 

 narrowed and subacuminated : thin, with transverse striae which an- 

 teriorly in one valve diverge suddenly towards the ventral margin : 

 hinge with t.wo teeth, no lateral ones. If . . 2. — Cajoe of Good Hope. 



CORBIS. 



Transverse, equivalve, without anterior flexuosity, slightly de- 

 pressed; beaks incurved towards each other ; hinge with two 

 primary teeth, and two lateral onea, of which the jwsterior one is 

 nearest the cardinal teeth ; muscular impressiojis simple. 



C. FiMBRiATA. Lam. 1. — Sow. G. — Reeve, t. 57. — Venus F. 

 Lin. 1 1 13.— i>. p. 187.— Ch.f AAS.—E. t. 286./. 3. W. t. 8; 



1 I almost doubt if Ovalis of Sowerby is distinct from this, and 

 even as to either belonging to tliis genus and not to Psammotea. 



