Entomological Society, 437 Hah. Senegal. Cuming, Metcalfe. Not very unlike a thin Solidula, but provided with lateral teeth. Tellina chinensis. Tel. testd%ovali, solidiusculd, convexd, sub-incequilaterali, impolitd, intus extusque candidd, Icevigatd ; margine ventrali subrecto ; dorsali, antice convexiusculo et paululum declivi, postice subrecto satisque dcclivi ; extremitate posticd obtusd ; latere antico longiore, rotundato ; ligamento — ? ; costd umbonali obsO' letd ; dentibus lateralibus nullis. Long. 0"62; lat. 1 poll. Hab. China. Mus. Britannicum. Tellina ala. Tel. testd ovatd, solidiusculd, subincequivalvi, sub-aquilaterali, nitidd, convexiusculd, extus intusque albidd {radio brevi pallide aurantio in adultis ornatd), concentrice substriatd; margine ventrali magis minusve cofivexo ; dorsali antice convexo et subdeclivi, postice declivi et prope nates subretuso ; latere antico, rotundato, longiore ; postico angulato, subrostrato ;flexurd costdque umbonali conspicuis ; ligamento subinfosso ; cardine, dentibus pri-mariis parvis, et nonnunquam dente laterali antico rudimentali, in-structo. Var. Testd ovato-trigond, solidd, convexd, Icevi aut sublcevigatd, ne-quaquam subrostratd ; flexurd costdque umbonali subinconspicuis. Long. 1-20 ; lat. 1-75 poll. Var. long. 1-20 ; lat. I'SO poll. Hab. Ceylon ? Mus. Metcalfe, Cuming, Hanley. An extremely variable species, with somewhat the aspect of Nym-phalis, but easily distinguished by its lesser convexity, and in general by the presence of a pale orange streak on either side of the umbones, or in the young by the slight rostrum and the possession of regular concentric striae. Tellina Irus. Tel. testd ovatd aut obovatd, crassd (in adultis), subventricosd, subcequilaterali, impolitd, extus intusque albidd, con-centrice rugulosd ; rugis interruptis minimis, confertissimis, sub-elevatis ; margine ventrali magis minusve arcuato ; dorsali antice convexo et subdeclivi, postice convexiusculo, elongato et declivi; latere antico paululum breviore, rotundato ; postico inferne angu-lato ; lunuld {in adultis) parvd, profunda; ligamento infosso ; costd umbonali subobsoletd ; dentibus satis magnis. Long. 1*10; lat. 1-40 poll. Hab. ? Mus. Cuming, Walton. Evidently a perforating species, and allied to the Petricola ochro-leuca of Lamarck, the true Tellina frag His of Linnaeus's own collec-tion. ENTOMOLOGICAL SOCIETY. April 3rd, 1843. — George Newport, Esq., President, in the Chair. Mr. W. W. Saunders exhibited a case of New Holland insects, some being of great rarity, including a new species of Rhipicera of large size. Mr. F. Bond exhibited some specimens of Pachyrhynchi from the
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