235 



distinct; beaks acute ; ligament sunken; lateral teeth large, tole- 

 rably and almost equally close. 

 Mediterranean. 



25. Tellina Owenii (pLlx. f. 138.) #a?%,Zool.Proc.l844. 



T. testa ovato-oblonga, solidiuscula, subimpolita, compressa, 

 sequilaterali, albida, concentrice et confertissime striata ; margine 

 ventrali valde arcuato ; dorsali utrinque subdeclivi, antice subrecto, 

 postice incurvato et lamellis subdentato ; extremitate antica rotun- 

 data, ; latere postico acuminata, subrostrato ; costa umbonali con- 

 spicua ; flexura satis distincta ; natibus acutis ; ligamento infosso ; 

 disco interno aurantio ; dentibus lateralibus, subremotis, subajqui- 

 distantibus. 



Ovate-oblong, tolerably strong, rather dull, whitish, (with often 

 a tinge of orange in the front part of the umbones, and the internal 

 disc always of that colour,) equilateral, compressed, with crowded 

 concentric strise ; ventral edge much arcuated ; dorsal moderately 

 sloping on either side of the acute beaks, nearly straight in front, 

 incurved behind and somewhat toothed by the lamellae, (which in 

 some specimens commence before the conspicuous fold) ; ligament 

 sunken ; lateral teeth distinct, and nearly equally remote. 



Africa. 



26. Tellina pharaonis (pl.lxiii. f. 215.) Hcmley, Zool.Proc. 

 1844. 



T. testa- T. Vulsella simillima, sed solida lineisque elevatis con- 

 centrice striata, umbonibus aurantio-roseis ; flexura sinuata. 



Extremely like T. Vulsella, but solid, and rough with concentric 

 elevated stria; ; fold sinuated. 



In the only specimen I have ever seen, one of the valves is of a 

 delicate pink, the other white tinged with the same hue, the beaks 

 of a very rosy orange and the ventral flexure so deep as to form a 

 sinus ; the lower margin is not so convex in front as in Rostrata ; 

 the front lateral tooth is distinctly crenated, but this is probably 

 accidental. 



Red Sea. 



27. Tellina vulsella (pi. lxi. f. 162, 163.) Chem. T. ros- 

 trata, Gmel. p. 3233 (in part) ; Dd. Des. Cat. p. 84 ; Lam. no. 9 ; 

 Chem. vol. vi. f. 105 ; Enc. Meth. t. 289. f. 1 ; Wood, Gen. Cone, 

 t. 37. f. 3 ; Knorr. vol. iv. t. 2. f. 2, 5 ; Hani. Des. Cat. p. 62. t. 4. 

 f. 28. 



T. testa valde elongata, compressa, tenui, subpellucida, nitidis- 



