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OBSERVATIONS - >/^ / ^ ^' // 



GENUS U N I 



DESOKIPTIONS OF NEW SPECIES, THEIR SOFT PARTS, AND E.MIJRYONK^ FORMS, IN 

 THE FAMILY FNIONIDiE, 



REAT1 HEFnRE TTIK \r AHEMY OF NATURAL SCIEiXCES op PHILADELPHIA AND 

 ITBLIPHKP IX THEIR .lOFRNAJ,. 



ISAAC LEA. LL. D.. 



rSESlDBST OF TUK ArAPEJIT- OF XATrRAt. KIBXCB^ OF PIIILADFXrHIA, Kl' .. ETr. 



WITH SIXTEKN PLATKS. 



VOT.. «.-PART TI. 



PHIL A I> E L r II I A : 



PRINTEO FOR THE AUTHOR. 



