PLATE LXXXI. 



FIG. I. Distolasterias chelifera Verrill. Type. Dermal major pedicellariae ; 

 a, b, c, d, are elongate, strongly unguiculate forms ; e is a stouter 

 form, and not unguiculate ; X 28. No. 1346, Mus. Comp. Zool. 



FIG. la. The same specimen. One of the dorsal spines bearing a wreath of 

 minor pedicellariae, P, P; X 8. 



FIG. ib. The same specimen. Spines cleaned; a, marginal spine with pedicel- 

 lariae removed ; b, outer adambulacral ; c, inner adambulacral ; 

 e, f, adambulacral major pedicellarise; X 28. 



FIG. 2. Orthasterias californica Verrill. Type, a, an inferomarginal spine, 

 cleaned; b, a dorsal spine with a wreath of minor pedicellarise; 



XI2. 



FIG. 20. The same specimen, a, outer ; b, inner adambulacral spine ; X 12. 



FIG. 2b. The same specimen. Major pedicellarise; a, b, c, d, e, dorsal; f, g, 

 adambulacral ; h, i, actinal interradial ; X 12. 



FIG. 3. Orthasterias dawsoni Verrill. Type. Dermal major pedicellarise ; 

 a, b, stout dorsal form ; c, d, e, more slender spatulate or platalei- 

 form sorts from the lateral area ; X 12. 



FIG. 30. The same specimen. Spines; a, b, c, dorsal spines treated with 

 Javelle water to remove most of the pedicellariae ; X 12. 



FIG. 3&. The same specimen. Inferomarginal spines ; a, b, a pair with pedicel- 

 lariae ; c, d, a smaller pair cleaned with Javelle water ; X 12. 



(164) 



