273 



T. testa oblongo-ovali, inEequivaha, compressa, tenuis subnitida, 

 insequilaterali, pallide auxantio-roscil, radiis subroseis ornata; sub- 

 Isevigata, concentrice exiliter striolata, valvula autem altera sulcis 

 remotis concentricis postice exarata; margiue ventrali medio sub- 

 recto ; dorsali antice convexiusculo paululumque declivi, postice 

 subrecto ct subdeclivi ; latere postico brevi^ angulato ; extremitate 

 antica rotundato-obtusa ; ligamcnto prominulo ; costa umbonali 

 subinconspicua ; deutibus lateralibus distinctis, subsequidistan- 

 tibus. 



Oblong-oval, inequivalve, compressed, tliin, not very glossy, in- 

 equilateral, of a very delicate salmon-colour, with bght pink rays ; 

 smootliish, being merely striolated concentrically, with a posterior 

 space grooved concentrically and distantly in one of the valves 

 only; ventral edge straightish in the middle ; dorsal slightly con- 

 vex and very httle sloping in front, moderately sloping and nearly 

 straight belrind; posterior side short and angulated; anterior 

 extremity obtusely rounded ; ligament moderately projecting ; fold 

 by no means conspicuous; lateral teeth distinct, and tolerably 

 equidistant. 



* * With a single anterior lateral tooth. 



Africa, (Dr. Bates). 



94. Tellina Maes (pi. Ixii. f. 180.) Eanley. 



T. testa oblonga, sohda, subsequilaterali, compressiuscula, extus 

 intusque rosea, concentrice et confertissime striata, lineisque obso- 

 letis radiatim impressa ; margine ventrali in medio subrecto, utrin- 

 que convexo, postice incurvato ; dorsali antice convexiusculo et vix 

 paululum declivi, postice prope nates obtusas excavato deinde con- 

 vexo et subdeclivi ; extremitate antica rotundata ; latere postico 

 obtuse acuminato, subrostrato ; flexura costaque umbonali valde 

 conspicuis ; ligameuto infosso ; dente laterah quamplurimum ap- 

 proximato. 



Oblong, solid, nearly equilateral, rather compressed, rose-coloured 

 within and without, decussated by very crowded concentric striae 

 and obsolete radiating hues ; ventral edge nearly straight in the 

 middle, convex at the sides, incurved posteriorly ; dorsal edge but 

 slightly convex and scarcely at all sloping in front, posteriorly ex- 

 cavated near the obtuse beaks and then convex and moderately 

 sloping ; front extremity rounded ; posterior side subrostrated and 

 obtusely acuminated ; fold and tiexure very conspicuous ; ligament 

 sunken ; lateral tooth as approximate as possible. 



The only specimen I have ever seen, (now in the possession of 

 IVIi*. Cuming,) is stated to have come from Guinea. 



