822 Panama Shells. synopsis. 



margine ventrali subrotundat^ ; margine anteriore late rotundatA : 

 margine doi-sali antice subrectS,, declivi, postice subconcavS., declivi; 

 parte posticil oblique et late truncatS, : flexur^ parvS, : albfi., rubro vel 

 fusco tinct& : striis exilissimis inequalibus radiat&_ ; striis exilibus sub- 

 obliquis crebris, postice deficientibus ; ligamento brevi, conspicu^ ; denti- 

 bus lateralibus obsoletis. Long. 44"'.5 ; alt. 31"'.2 ; lat. 12"'.1. 



Tkllina oonoinna. T. t. subellipticS,, tenui, ;:onvexa,, parte anticdi 

 vix majore ; margine ventrali subrotundat& ; margine antic£ late rotun- 

 dat^ ; margine dorsali anterius vix excurvatS., baud multura declivi, pos- 

 terius subrectS,, paululum declivi ; parte postic&, suboblique latins trun^ 

 cats, : flexurS, parvli : nitid&, nive&, ad mediam partem rnbelll, : striis 

 concentricis inequalibus exilibus, posticis majoribus ; striis radiantibus 

 inequalibus exilissimis : ligamento brevi, conspicuo : dentibus lateralibus 

 obsoletis. Long. 40"'.6 ; alt. 25'" ; lat. 12'". 



Tellina puklla. T. t. elongate, subsolidS,, eonvexS., subinequi- 

 laterali ; margine ventrali vix excurvatA, postice recta ; margine anticd 

 late rotundat& ; margine dorsali antice vix excurvatsl, postice rect&, per- 

 declivi ; parte posticS, acuminata : flexurA parvS, : albS,, prope marginem 

 rubro tinct^ : nitidi ; striis concentricis exilissimis ; striis radiantibus 

 microscopicis : ligamento parvo ; dentibus lateralibus conspicuis. Long. 

 22"'.8;alt. 12"'.4;lat. 7"'.l. 



Tbllina siliqoa. T. t. elongat&i subelliptic^, tenuissim^, inflate, 

 perinequilaterali ; margine ventrali subrect^ ; margine anticS, rotundat^ ; 

 margine dorsali antice vix excurvata, subdeclivi, postice recta vel con- 

 cave, declivi ; parte posticS, anguste subtruncatl, : flexurS, magnS. : niveS, ; 

 striis concentricis exilissimis : apicibus acutis : ligamento parvo : dentibus 

 cardinalibus parvis, lateralibus obsoletis. Long. 17"'.8; alt. 10"'.l ; 

 lat. 1"'.6. 



Tellina simulans. T. t. subovat&, solids, subconvexA, subinequi- 

 laterali ; margine ventrali vix excurvata : margine antici rotundatS. ; 

 margine dorsali antice vix excurvat&, postice subrectA, declivi ; parte 

 posticil oblique truncate : floxurd parvfl, : albil, ad medium partem rosoo 

 tincta, : nitiuA : sulcis oonoentviois crebris, reguluribus, profundis, antic6 

 et postice sequalibus : ligamento brevi, conspicuo ; are&, dorsali postic^ 

 ab angulo umbonali finite ; dentibus lateralibus subobsoletis. Long. 

 a8"'.'?;alt. I7"'.8;lat. ^'''.e. 



Tellina vioina. T. t. brevissim^, subovat^, solidS,, oonvexS,, subequi- 

 lateral!; margine ventrali rotundata, interdum prope flexuram subin- 

 curvat^ ; margine antictl late rotundata ; margine dorsali subrect^, 

 utrinque declivi ; parte posticS, subtruncatS, ; flexurS, parv^ : albida, 

 interdum flavo tinct^ ; interdum rubrS,, coeruleo tinct^, vel canescente ; 

 interdum albidfi,, lineis purpureis angulatis ad umbones — vel radio antico 

 purpureo — ornate ; striis profundis concentricis crebris inequalibus : liga- 

 mento brevi, conspicuo : dentibus lateralibus parvis. Lon"-. 24'" 1 ■ alt 

 19"'.8 ; lat. 10"'.l. i- , o 



Petmcola coonata. P, t. pholadiformi : albid^ ; are^ superb posticll 



