MONOGBAPU OF THE EXISTING CEINOIDS. 



309 



Fig. 400. 



FiQ. 401. 



Figs. 394-401.— 394, Lateral view of a cirrus from a fui.lt grown PENTACRraoiD larta of Hatiihometra sar-sh from 

 Norway (after M. Sar.s). 3'Jo, The tip of a small aRRUS from a fully grown pentacrinoid larva of IIatiirometra 



SARSII from XorWAY (AFTER M. SAR.S). 398, .\ SECTION FROM THE MIKI'LE OF ONE OF THE LONGER CIRRI OF A FCLLV 

 GROWN PENTACRINOID LARVA OF H-\THR0METItA SAR.'^II FKOM NORWAY (AFTER M. SaRS). 397, LATERAL VIEW OF A CIRRUS 

 FROM A SPECIMEN OF IlATHROMETRA SARSII FROM NORWAY (CAMERA LUCIDA DRAWING BY THE AUTHOR). 39S, TllE TIP OF 

 A SMALL CIRRUS FROM A FULLY GROW.N PENTACRLNOID LARVA OF HaTHROMETRA SARSU FROM NoRWAV (AFTER M. SaRSK 

 399, .\ DEVELOPING CIRRUS FROM A FULLY GROW.V PENTRACRINOID LARVA OF IlATHROMETRA .SARSII FROM NORWAY (AFTER 

 M. SARS). 400, LATERAL VIEW OF A CIRRUS FROM A SPECIMEN OF TRICIIOMKTRA AMERICANA FROM THE CRAND BANKS. 



401, Lateral view of a cirrus from a specime.n of Uathrometra dentata from southern Massachusetts. 



