ALBERT I er - PRINCE de MONACO , camp, scient. 



HEXACTINIDES , PL. IV 





42 



A.Cmtract.Phot. 



Héliog'.L.Schu.tzeiibepgep, Paris 



36-39, CHONDRACTINIA NODOSA (fabr.) _ 40 -41, CHOXDRACTINLA JUV. 

 42,43 , CHITONANTHUS INCUBANS gravier 



