PLATE LXXXVIII. 



Fig. I. Henricia leviuscula var. inequalis Verrill. Type. Portion of the 

 actinal side of a ray; a, a, enlarged adambulacral spines; of, a', 

 longer adambulacral spines on inner angle of plate; b, inter- 

 actinals; c, second row of interactinal pseudopaxillae ; d, infero- 

 marginal plates and spines; X lo. No. 5183, Yale Mus. 

 Fia Iff. The same specimen. Group of dorsal pseudopaxillae and papulae from 



base of a ray; X 10. 

 Fig. 2. Henricia leviuscula var. lunula Verrill. T3rpe. Group of dorsal 

 ossicles from the base of a ray, cleaned ; X 5- British Columbia. 

 Yale Mus. ^ 

 Fia 20. The same specimen. Plates of the actinal side of the middle of a 

 ray, cleaned ; a, a, adambulacrals ; b, b, peractinals ; c, c, inf ero- 

 marginals; d, d, superomarginals ; e, e, latero-dorsals ; /, two 

 adambulacral spines ; X 5- 



The same specimen. Plates of actinal side, more enlarged (X 10). 

 Lettering as in fig. 20. 



The same specimen ; a, adambulacral spines ; a', enlarged inner spine ; 

 a", furrow-spine ; b, peractinal spines ; X 10. 



Henricia sanguinolenta (Miiller). Typical form from New England. 

 A jaw and adjacent parts; 0, 0, 0', apical or peroral spines; 

 0", 0", lateral adoral spines; a', a" , adambulacral spines of first 

 and second free plates ; d, d, exsert papulae ; X 5- Eastport, Me. 

 (coll., A. E. Verrill). Yale Mus., No. 5099. 



The same specimen. Spines from the actinal side near the base of a 

 ray; a, a, adambulacral plates; a', a", adambulacral spines; a'", 

 furrow spine ; b, b' , interactinal spines ; d, d, papulae ; X 5- 



Henricia sanguinolenta miliaris Verrill. Type. From a New Eng- 

 land specimen. A portion of the actinal surface of the middle of 

 a ray; X 10. Lettering as in fig. 30^ with addition of c, c, the 

 inferomarginal plates. 



The same specimen. Group of dorsal pseudopaxillae from near base 

 of a ray; X 10. Eastport, Me. (coll., A. E. Verrill). Yale Mus. 



Henricia tumida borealis Verrill. T3rpe. Portion of plates and spines 

 from the actinal side near the base of a ray ; X 10. Lettering as 

 in figs. Z(i and 4. Dutch Harbor, Alaska, Harriman Expedition. 

 Yale Mus. 



The same specimen, a, a, ambulacral spines; a', a', larger spines on 

 edge of groove ; b, b, peractinal spines ; X 10. 



The same specimen. Adoral adambulacral plates and spines ; X 10. 

 Lettering as in fig. 5a. 



Orthasterias forreri forcipulata Verrill. Type. Larger dorsal, 

 dermal, major pedicellariae of three sorts; o, b, stout, erect 

 denticulate form ; c, spatulate or plataleif orm sort ; d, lanceolate 

 form ; X 43- 



The same specimen. Minor pedicellariae of different sizes, a-f; X 43- 



Pycnopodia helianthoides (Brandt). Spines; a, b, c, dorsals with 

 wreaths of minor pedicellariae ; d, the same, cleaned of the pedi- 

 cellariae; f, an adambulacral spine with a pedicellaria (P) 

 attached to its base by a pedicel on the edge of the furrow ; g, an 

 adoral spine, cleaned ; X 10. 

 Fig. ya. The same specimen. A group {b, b) of adambulacral overlapping 

 plates; a, a, adambulacral spines; p, p, major pedicellariae on 

 slender pedicels ; X 10. 

 FlG. 7&. The same specimen, a, b, c, three forms of small lanceolate major 



pedicellariae ; X 84. 

 Fig. Jc, The same specimen, a, b, c, three of the minor pedicellariae ; X 84. 

 Fig. 7rf. The same specimen. One of the jaws with apical or peroral spines 

 and pedicellariae ; X 10. 



(178) 



