I'LATK 152. 



Fig. 1. BriKin</(i tnicli jidisra. station r)4,S7 ; ;irticul;iting surface of ninltulacral 

 lihites of disk, where ray lias been broken off. X 5. In. Same; a 

 pe<licellaria from a small atlamlmlacral sjiine, X 120. 1^. Same; 

 moutli plates. X ."• : only 1 of the suhoral spines shown. Ic. Same, 

 type: adanihnlacral phites from nuddle of <-ostal region, X5; 1 

 lateral spine is shown. P. 510. 



2. Odiiiia pacified. Hawaiian Islands; articulatin'4 surface of adambulacral 



plates at base of ray, where it has been detached from disk, for com- 

 parison with oil \ X 5. P. 509. 



3. Odinia iiuKji.strr. type; side view of ray at end of the pajndar region to 



.show the comb of s])ines (only one comb shown), the adambulacral 

 spines, and the cushions of pedicellariae. X 2.5. The sacculi are shown 

 extendinii; their full len.iith beyond the tips of the laterial spines proper; 

 in life they are undoubtedly much longer. 3r/. Same ; articulating 

 surface of the adambulacral plates at base of ray, for comparison with 

 fi.g. 2; X 2.5. Ordinarily the opposite facet, that of the disk, has been 

 figured, but the disk is wantin,g in the type. P. 507. 



4. Brisinffcuca iiiiiiiicd. type; a pedicellaria from disk (length. 0.45 nun.) 



X 80. 4(1. Same; base of the blade of a disk i)eilicellaria further 

 enlai-ged. 4h. S;ime: a pedicellaria from a fuirow spinelet (length, 

 0.42 nun.). X 80. 4r. Same: end of l)lade of furrow iiedieellaria, 

 enlarged. 4(1. S.-inie; a pedicellaria fi'oni an oral sjiiue at mouth of 

 furrow (length. 0.5 nun.), X 80. 4f. Same; adambulacral plates. 

 4/. Same; articulating surface of ambulacral i>lates of disk, where 

 i-ay has been broken off. P. 518, 



699 



