Manchester Memoirs, Vol xlii. {i%9^\ No. ^, 35 



A very beautifully rayed, and delicate species. It is 

 allied to T, semen Hanley, T. lechriogramma Melv., etc., but 

 we have not seen any of these near relations to it, in any 

 instance, rayed. The concentric striae are very delicate, and 

 more pronounced posteriorly. 



(aKTiv(i)Tog, radiate.) 



Tellina (Angulus) sericata, s/>. nov. 



(PI. 2, f 18.) 



T. testa sitbtrapezoide, delicata, tenuis pallidissiine albo- 

 straminea, umbonibus acutis, latere postico ab umbonibits 

 rapide declivi ad mediiun b rev iter tj'iincato, antice peroblongo, 

 margine ventrali cojivexiusculo, ab itmbonibus ad extremi- 

 tates posticas marginis ventralis valvariun unangulata, 

 superficie triangulari inter angidwn et latera postica 

 spinifera, irregulariter nodidoso-corrugata, ccetera superficie 

 concentrice lineata, lineis obliquis, irregulariter diffitsis, 

 transeuntibus, in medio magis arctis, hie sinuosiSy illic, 

 prcBcipae antice, prope ventralem marginem evanidis. 



Alt. 10, lat. 14, diam. 4 mm. 



Hab. Muscat, Arabia ; 10 fathoms. 



An ornate species, with a beautiful silky superficies, pos- 

 teriorly angled and truncate, spiniferous, the space between 

 the angle, which extends from the umbones to the 

 posterior extremity of the ventral margin, is irregularly 

 nodulously wrinkled. The shell, anteriorly, is very oblong, 

 the surface shagreened with concentric lines, crossed ob- 

 liquely and irregularly with other lines, these last becoming 

 almost obsolete at the posterior extremity of the ventral 

 margin. Not very nearly allied to any Tellina we are 

 acquainted with. T.gargadial^. and T. incsqualis HsLnley, 

 especially the latter, have some characteristics in common 

 with it, but are hardly comparable. 



(sericatus, silken.) 



