SUCCINEA.— Plate X. 



Wlien the shell is cleared of its epidermis, and the 

 mud that sticks to it, no trace can be seen of lines or 

 indentations which would accmmt for the three carina; 

 or ridges into which the mud has been Ibrmed. 



Species 71. (Mus. Brit.) 

 LTCCiNEA CADUCA. ifiic. tcstd ov(itd,opacd, fusco-comtci, 

 ImviijatA ; spird brevi, acuminata, amfractibm api- 



ralibus duohiisminutif ; uperturd ovatd, intiis iridcs- 

 centi ; plied columdlari tenui, rectiilscvld. 



The BijiTTLE SucciNEA. Shell ovate, opake, horny- 

 brown, with the two apical whorls minute ; aper- 

 ture ovate, iridescent within ; columeliar plait 

 thin, rather straight. 



MlGH^LS ? 



Hah. Sandwich Islands. 



