Zuulugicnl Society. 49 



three cardinal teeth in the left valve. Beyond the almost obsolete 

 umbonal ridge the concentric sulci become broken into small scales. 

 The delicate radiating strire arc quite obsolete in front. 'Ihe sliell 

 seems slightly inequivalve. 



Tellina i.v.kqtalis. Tel. tcstd subovatd, valdv ino'qiii/atcru/i, 

 solidil, convexd, candidd, tcnuiter striata ; striis superiic obliquls, 

 in/erne concentricis, fleruosis ; supra costani innhonalem inconspi- 

 cuam, rugis erectis flexuosis, asperatd ; murgine venlruli convex- 

 issimo ; dorsali antice suhincurvato et vald'i' decUvi, postio- brevi, 

 recto, subdedivi ; latere antico producto, ad extremitatem ntteniiato, 

 rotundato ; extremitate posticd obtiisd ; natihus acutis ; lunuld di- 

 stinctd ; superficie inter/id candidd, aut flavescente ; cardine dente 

 laterali magno, subremoto, antico. Long. 0"90; lat. \'20 poll, 

 Hab. Ceylon. Mus. Cuming. 



An unique specimen of this curious shell is in the museum of Mr. 

 Cuming, and reminds us in many i)articulars of the Tellina Gargadia ; 

 but that species is neither so narrow nor so greatly inequilateral, its 

 oblique stria; do not extend over the posterior portion of the shell, 

 and its hinge is clearly jjrovided with two lateral teeth. Tlie elevated 

 flexuous wrinkles radiate down the umbonal slope in three distinct 

 lines. 



Tellixa Felix. Tel. testd subovali, solidiusculd, valde inecquilate- 

 rati, convexiusculd, nitidd, Icevigatd, intus extusque rosed ; marginc 

 ventrali vix convexiusculo ; dorsali antice vix declivi, convexo, 

 postice valde declivi; latere postico brevissimo, obtuse subtruncato, 

 in/erne subangulato ; exiretnitate anticd rotundatd ; costd umbonali 

 et flexurd ventrali subobsoletis ; cardine dente laterali magno, 

 approximate, antico. Long. 038 ; lat. 0"80 poll. 



Hab. Panama; sandy mud, six to ten fathoms. 



This elegant little shell approximates in form to the British Dona- 

 cina, but differs as well in colouring as in sculpture and teeth. 



Tellixa coh'mbiensis. Tel. testd ellipticd aut oblongo-ellipticd , 

 compressiusculd, suhtenui, Icevigatd, intus extusque albidd, epider- 

 mide tenuissimd, fulvo-cinered indutd ; margine ventrali medio 

 convexiusculo, utrinque arcuato ; dorsali utrinque convexo, antice 

 paullo, postice satis declivi; latere antico longiore, rotundato; 

 extremitate posticd acuminatd ; flexurd subobsoletd ; dentibus pri- 

 mariis minimis, luteralibus nullis. Long. 1'70; lat. 3 poll. 

 Hab. Monte Christi, West Columbia ; sandy mud, twelve fathoms. 

 Its more compressed valves and minute teeth will distinguish it 

 from the few species which are allied to it in outline. The hinge- 

 margin is very short and rather broad. The general shape is that of 

 T. Soverbii. 



Tellixa Souleveti. Tel. testd oblongd, tenuiusculd, convexo- 

 depres.'^d, intus extusque albidd, Icevigatd ; margine ventrali magis 

 minusve convexo ; dorsali antice convexiusculo et subdedivi, pos- 

 tice subrecto aut subretuso et valdt declivi ; flexurd costdque um- 

 bonali distinctis ; Ugamento infosso ; natibus acutis ; latere antico 

 Ann. 6) Mag. N. Hist. Vol. xv. E 



