K.OS. 859-867.-s,o. ...o covKn..o ---■; j^"- "rj^xTK^ '^z rJj z:::LsZ.T^^ 



OF MASS OF SPICULES (SER FIG. 864). ^^f-J''^^^-^ BltlimFS AND PROXIMAL POCKET. 862. SAMB, 

 861. SAME. SIDE PLATE VIEWHD FROM '^^^^^"[•^^IZrZZJZ TO FORM DEEP IK,CKF.T. 883. 

 S,DE PLATE VIEWED FROM INTERIOR, ^"^^«';^;^,\';„'';'',';!; J ^o^^'.oN. 864. SAME. ISOLATED SUPPLB- 

 SAME, VES-TRAL VIEW OF SIDE PL..TE WITH -^^^ ^"^"^"J.^^J' ^^ ^,,, ,^.pp,«„ENTAR. PLATES: LOWKH 

 TA^rArCO^MPOrEroV^^^r^E^^-OE^^^^ 866. SAM. .SOLATED SCPPLEMEKTAK. 



PLATB. 867. CROSSOMETBA HBLIIIS. ALL X 100. ^^^ 



