323 



Var. Testa crassiore ; parte superiore lateris postioi partem iii- 

 feriorcm supcrante. 



Oboval, rather thin, very sliglitly ineqnivalve, nearly inequilatersJ, 

 ventricose, somewhat pellueid, white, nearly smooth or with delicate 

 concentric wrinkles, wliich are cliietly apparent near the rounded 

 anterior extremity ; ventral edge nearly straight (as to convexity), 

 but much twisted, owing to the concavity in front of the obtuse 

 but promhient umbonal slope in one of the valves ; dorsal edge 

 scarcely sloping, arcuated in front, straightish beliind ; extremity 

 of the liinder side (wliich is slightly the shorter) very obtusely 

 biangulatedj ligament rather sunken; beaks broad and directly 

 incurved ; teeth small. 



Var. Thicker and coarser ; a broader space from the umbonal 

 ridge to the posterior end, which latter projects at its upper ex- 

 tremity. 



Guinea. 



198. Tellina spectabilis (pi. Ixv. f. 254.) Hanley, Zool. 

 Proc. 1844. 



T. testa ovato-trapeziformi, subtenui, maxime insequilaterah, 

 ventricosa, impolita, extus intusque albida; concentrice striata, 

 striis elevatis, tenuibus, rugosis -, margine ventrali paululmn con- 

 vexo ; dorsaH antice convexo et declivi, postice recto aut subin- 

 curvato et maxime declivi; extremitate lateris antici longioris 

 obtusa; extremitate postica truncato-cuneiformi, obtuse biangu- 

 lata; llexura costaque umbonali conspicuis; ligamento magno, 

 hand promiuente; dentibus minimis. 



Ovate, subtrapeziform, not solid, extremely inequilateral, ven- 

 tricose, duJl, white both internally and externally, with fine raised 

 concentric wrinkles, which are rather distant near the beaks, but 

 become closer towards the but little convex ventral margin ; ante- 

 rior side produced, its dorsal edge convex and sloping (in the 

 yonng it is at first almost parallel with the ventral) ; its extremity 

 obtuse or more rarely rounded ; posterior side extremely short., 

 its extremity truncato-cimeiform and obtusely biangiUatcd, the 

 bgamental edge abruptly sloping and straight or shghtly incurved ; 

 fold and flexure prominent, the former subcarinated in the young ; 

 ligament large but not projecting; teeth minute. 



Bay of Manilla and Isle of Siquijor. 



199. Tellina Dombei (pi. Ixii. f. 182, and pl.lxiv. f. 222.) 

 Hanky, Zool. Proc. 1844. -^ ^ £^-»vwf^ t cun^. wu. UmA«/^ . 



T. testa obovata aut ovali, subinaequivalvi, magis minusve so- 



