281 



Maxgelia ( Astyris) labecula. T. parva, ovato-fusiformis, cerina, 

 macula castanea intra et extra labium ornata, spiraliter tenuissime 

 striata, longitudinaliter ad 16-plicata, plicis ad anfractum ultimum 

 sensim evanescentibus, striis simul crescentibus ; anfr. 7-8 convexius- 

 culis, linea subsuturali impressis : apertura parva, ovalis ; labro 

 gibboso, extus incrassato, intus granulate ; sinu baud notabili. Axis 

 7 ; diam. 3 millim. Dredged off the coast of Georgia. 



The brown blotch on the lip is a sufficient characteristic. 



Bel A UNDATELLA. T. ovato-rhomboidca, lucida, lactea, nitida, 

 vix spiraliter striata ; apice mamillato ; anfr. 4 tabulatis (angulo rotun- 

 dato) linea subsuturali impressis, undulis opacis longitudinalibus ad 8 

 ornatis : apertura longitudine dimidiam testae adequans. Axis 3 ; diam. 

 1, 5 millim. Dredged in 400 fathoms off the coast of Georgia. 



The transparency and mamillated tip of this minute shell renders 

 it plausible that this may be the young of some larger shell. 



Marginella (s. g. Gibberula) lachrimula. T. minima, ovata, 

 lactea, lucida, nitida, longitudinaliter exilissime striata; apice baud 

 eminente, vitreo : apertura angusta, crescentica ; labro obtuso, extror- 

 sum varicose postice late arcuato et apicem admodum superante, intus 

 vix crenulato; columella antice 4-plicata. Axis 1, 5 ; diam. 1 millim. 

 Dredged in 400 fathoms off -the coast of Georgia. 



This may be distinguished from one or two other minute species 

 found in the W. Indies, by its transparency and its ventricose form. 



Semele nexilis. T. oblongo-ovalis, compressa, baud nitida, alba 

 versus umbones pallide incarnata concentrice laminato-striata et sulcis 

 radiantibus remotioribus concinne reticulata, ad intersectiones punc- 

 tata, et versus extremitatibus muriculata ; umbonibus vix post medi- 

 anis ; phca baud profunda ; dentibus lateralibus satis conspicuis jeque 

 ab umbone remotis ; pagina interiori erubescente. Long. 25; alt. 15; 

 lat. 7 millim. From the coast of Georgia. 



The sculpture is similar to that in the young of Lucina tigerina, but 

 much more delicate. 



Semele ornata. T. parva, elliptica, rubescens prope marginem 

 rosaceo concentrice et radiatim tincta, concentrice costato-striata et 

 radiatim striata presertim ad umbones et versus extremitates : plica 

 satis conspicua : cavositas flavo et sanguineo tincta admodum radiata ; 

 dentibus praecipue validis. Inhabits Georgia. 



Similar in form anH sculpture to the preceding, but different in 

 coloration and hinge. 



Ervilia coxcentrica. T. minuta, oblongo-ovata, pellucida, 

 nitida, (senioribus, incrassatis, margaritaceis) confertim sed profecto 

 concentrice arata ; umbonibus paullo postmedianis ; extremitate antico 

 acutiori quam extremitate postico. Long. 6 -f ; alt. 4 ; lat. 3 millim. 



