PLATE LXXVI. 



Figs. i-ib. Pisaster brevispinus (Stimpson). Spines and pedicellariae of 

 No. 1301, Mus. Comp. Zool., Gulf of Georgia, X8; a, b, c, 

 dorsal spines ; la, b, c, pedicelled clusters of adambulacral 

 pedicellariae, from inner edge and within the groove, consist- 

 ing of both major and minor kinds, of various sizes, attached 

 to a common pedicel ; lb, tip of a sucker-foot with pedicellariae 

 attached. 



Figs. 2-2d. Pisaster papulosus Verrill. Type. 2, a, b, c, marginal spines ; 

 20, a-e, clusters of adambulacral or furrow pedicellariae 

 attached to a common pedicel and containing both sorts ; f, a 

 minor pedicellaria much enlarged ; 26, a-d, minor pedicellariae 

 more enlarged ; 2c, a-d; and 2d, b-f, dorsal and lateral large 

 dermal major pedicellariae of several forms ; 2d, a, is an 

 adambulacral group. 



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