61 



Tellina regia. Tel. testd oblongd, temti, compressiusculd, sub- 

 incEguivalvi, subceąuilaterali, nitidissimd, pellucidd, intus extusque 

 roseo-purpurascente, concentrice sulcatd ; suleis remotis, alterd in 

 valvuld posticP evanescentibus ; margine ventrali subrecto, medih 

 subretuso ; dorsali utringue sub(equaliter declivi, postice subrecto ; 

 latere antico paululum breviore, ad extremitatem obtuse rotundato ; 

 extremitate posticd superne anguhitd, attenuatd ; costd umbonali 

 et flexurd ventrali obsoletis ; ligamento prominulo ; dentibus ut in 

 T. punicea. Long. 10; lat. 1"80 poli. 

 Hab. Real Liejos, Central America ; in coarse sandy mud, seven 



fathoms. ' 



This species forms one of that group of which punicea is the 



type. Though closely allied to that species, its transparency, the 



more distant sulci, and its deep purplish-red colouring suffice to 



distinguish it. 



Tellina eburnea. Tel. testd oblongd, opacd, solidd, incequivalvi, 

 convexd, 7ntidd, albidd, incequilaterali, concentrice sulcatd ; suleis 

 profundis, remotis {alterd in valvuld, nonnunquam postice evanes- 

 centibus) ; margine ventrali convexiusculo, antice sursiim accli- 

 nante ; dorsali antice subrecto, leviterque declivi, postice recto 

 subitbque declivi; latere postico multiim breviore, subcuneiformi ; 

 lineis erectis obliquis, aream nymphalem et analem rugantibns ; 

 ligamento brevi, prominente ; jiexurd ventrali costdque umbonali 

 subobsoletis ; superficie internd candidd ; dentibus lateralibus, ut 

 in T. punicea. Long. 0"90 ; lat. 1'50 poli. 



Hab. Tumbez, Peru ; in soft sandy mud, five fathoms. 



Allied to punicea, but easily distinguished from that and any other 

 allied species by the peculiar elevated sulci on the dorsal areas. 



Tellina Proba. Tel. testd subtrigond, ovali, solidd, convexiusculd, 

 sub(equilaterali, nitidd, extus intusque pallide rosed, aut subleevi- 

 gatd, aut concentrice et temiissime striatd ; margine ventrali con- 

 vexo ; dorsali utrinque valde et subeegualiter declivi, subrecto ; 

 extremitate posticd aeuminatd ; flexurd ventrali costdque umbonali 

 subobsoletis ; ligamento prominulo; dentibus lateralibus magnis, 

 antico approxitnato. Long. 120; lat. 1*80 poU. 

 Hab. Porto St. Elena, "West Columbia ; sandy mud, six fathoms ; 

 and Salango, West Columbia, sandy mud, nine fathoms. 



-Its extremely delicate concentric strise and acuminated extremity 

 separate it from most of the allied species. It belongs to that group 

 which contains punicea. 



Tellina laceridens. Tel. testd oblongo-subtrigond, solidd, opacd, 

 sub(Equilaterali, nitidissimd, convexiusculd, albd (intus candidd), 

 superne IcBvigatd, inferne concentrice et confertim striatd ; margine 

 ventrali convexiusculo ; dorsali utrinque convexiusculo, et subcequa- 

 liter declivi; extremitate anticd rotundatd {plerumque subattenu- 

 atd), posticd rotundato-acuminatd ; costd umbonali et flexurd ven- 

 trali inconspictiis ; ligamento magno, elongato, prominente ; dentibus 

 primariis laceratis, antico laterali subapproximato, postico laterali, 

 minore, remoto. Long. \50 ; lat. 2"50 poli. 



