323 



Var. Testa crassiore ; parte superiore latcris postici partem in- 

 feriorem superante. 



Oboval, rather thin, very slightly inequivalve, nearly inequilateral, 

 ventricosc, somewhat pellucid, white, nearly smooth or ^vith delicate 

 concentric wrinkles, which are chiefly 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 prominent umbonal slope in one of the valves ; dorsal edge 

 scarcely sloping, arcuated in front, straightish behind ; extremity 

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

 biangulated; 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. kv. f. 254.) Eanley, Zool. 

 Proc. 1844. '^ 



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

 ventricosa, impolita, extus intusque albida; concentrice striata, 

 striis elevatis, tenuibus, rugosis ; margine ventrali paululum con- 

 vexo ; dorsali antice convexo et decKvi, postice recto aut subin- 

 curvato et maxime declivi; extremitate lateris antici longioris 

 obtusa; extremitate postica truncato-cuneiformi, obtuse biangu- 

 lata; flexura costaque umbonali conspicuis; hgamento mao-no, 

 hand prominente; dentibus minimis. 



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

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

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

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

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

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

 obtuse or more rarely rounded; posterior side extremely short, 

 its extremity truncato- cuneiform and obtusely biangulated, the 

 ligamental edge abruptly sloping and straight or slightly 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 pi. Lxiv. f. 222.) 

 Kanley, Zool. Proc. 1 844. 



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



