508 Zoolof/ical Society. 



Hah. Tumbez, Peru; soft sand}^ mud, five fathoms. 



Although not easily confused with any of that section (with two 

 lateral teeth) to which it belongs, it closely resembles Tellinides pur- 

 purascens. 



Tellina SowERBir. Tel. testa subelUpticu, siibincequivalvi, tenui, 

 compressd, Icevigatd, politd, candidd ; margine ventruU arcuato, 

 postice siirsum acclinante ; dorsali antice vix pauhilum declivi, 

 convexiusculo, postice paiilulum declivi, prope nates suhincurvato, 

 deinde convexo ; latere antico longiore, subproducto,postico rotun- 

 dato-acuminato ; Ugamento parvo, angustissimo, infosso ; flexurd 

 ventrali costdque umbonali siibinconspicuis ; snperficie interna 

 albidd, plenimque aurantio tinctd ; dentibus lateralibus tenuibus, 

 stibcequidistantibus. Long. 2; lat. 3"30. 



Hah. r J\Ius. Sowerby, Hanley. 



Bears a slight resemblance to the acuta of Wood. 



Tellina pudica. Tel. testd parvd, solidd, ovato-suhtrigond, suh- 

 (equilaterali, nitidd, candidd, sublcevigatd, tenuissime concentrice 

 striatd ; margine ventrali antice arcuato, postice subito sursiim 

 acclinante ; dorsali utrinqne valde declivi, antice convexo, postice 

 elongato, subrecto ; latere antico paululiim hreviore, subventricoso, 

 rotnndato ; 2^ostico compresso, rostrato ; extremitate posticd sub- 

 acuminatd ; natibus prominentibus ; flexurd ventrali costdque um- 

 bonali subinconspicuis ; Ugamento minimo, infosso; superjicie in- 

 ternd politd ; dentibus lateralibus distinctis, suhapproximatis , 

 subcequidistantibus. Long. 0'30 ; lat. 0-40 poll. 



Hah. Catbalonga, isle of Samar; ten fathoms, soft mud. 



A stout little shell, possessing the general contour of a Neara, and 

 not easily to be confused with any species of this genus. 



Tellina nux. Tel. testd ohovali, subincequivalvi, subcequilaterali, 

 tenui, convexd aut suhventricosd, nitidd, sublcevigatd aut inferne 

 concentrice substriatd, intus extusque albidd, umbonibus hyalinis et 

 fulvis ; margine ventrali suharcuato, dorsali utrinque convexo, satis 

 et cequaliter declivi; extrernitate posticd obttisd, attenuatd ; Uga- 

 mento angustissimo, infosso; natibus ohtusis ; flexurd distinctd ; 

 costd umbonali inconspicud ; dentibus lateralibus distinctis, antico 

 paululiim propiftquiore. Long. 0'.50; lat. Ovo poll. 



Hab. St. Nicholas, Zebu; sandy mud, four fathoms. 



More oval than the three succeeding closely allied species. 



Tellina pinguis. Tel. testd parvd, rotundato-ovali, tenui, subincequi- 

 valvi, subcequilaterali, nitidd, convexd aut suhventricosd, intus ex- 

 tusque albidd (rarius incarnatd), Icevigatd (?io?inunquam concentrice 

 substriatd) ; margine ventrali arcuato, dorsali utrinque cotivexo 

 et subcequaliter declivi; extremitate posticd obtusd ; flexurd di- 

 stinctd; natibus minimis ; costd umbonali fere obsoletd ; Ugamento 

 angustissimo, itfosso ; dentibus ut in T. nuce. Long. 0'50; 

 lat. 0-60 poU. 



Hah. St. Nicholas, Zebu. 



By its more orbicular outline it may be distinguished from ?iux 

 and casta. It is still more closely allied to robusta, but its tenuity, 



