Plate _> 



Fig. 1. Brisingella pusilla, type ■ 10. Mouth plates and tirst two adambulacrals; above these 

 first two marginals; s, syzygial joint. 1". Same, station 4127. Mouth plates. 16. 

 Same, X10. Kighth and ninth adambulacral plates; latter with marginal plate and 

 'lateral" spine. Ic. Same, station 1333, Hi Dorsal \ ie« of section of actino- 

 stome at an interradial angle, af, a 2 , first and second ambulacrals; i, interradial; 

 7>i, first marginal; 1</, Same as Ic, but a peripheral or lateral view of angle, showing 

 facets of the syzygial joints; lettering same. le. Same. ■ 300. Pedicellaria from 

 enlarged subambulacral spine. 1/'. Same. X300. Pedicellaria from furrow spinelet. 

 2. Brisingella i.rilis. station 1 ."■*". s. Dorsal view of section of actinostome at interradial 

 angle; lettering as in Ic. 2n. Same as '_' but a peripheral view; 0, mouth plate.-; 

 other letters as in Ic. 2b. Same. Pedicellaria from furrow spinelet. <300; length 



o.l nun. 2c. Same, type. 10. Two adambulacral plate-, base of ray, the upper 

 with a marginal or lateral spine al right. 'Id. Same. Mouth plates and first adam- 

 bulacral and marginal plates. 



163 



