/'■ II 



l'n. i hi. 1. Portion of actinostomial ring showing twi 



ambulacral system between, mouth plates u below odontophores, 10 



2. Forma con) Pugei Soui I; a in( ticulate sti licellaria from among i 



spines, 1 nun. l"iig, X50. 



3. Forma confertus, Departure Bay, British Columbia; n large ungu 



from the actina] interradial area, 1.5 mm . SO 

 I. Forma od Sitka, Alaska; inside of a valve of a dorsolateral unguii 



laria, > 60 

 5,5a. Forma ■. Monterey Bay. Calif.; two valves of characteristic ui . 



pedicellariae, 5 being the inside, 5a tin- outside. 

 56. Same specimen, side view. > 50 



6. Forma och aci . Monterej Bay; the central large pedicellaria from 



cluster I mm 50 with one of the small pedicellariae drawn to Bcale 0.15 I 

 6a One of the small pedicellariae 0.22 mm. of an adambulacral i 



7. Actinal pedicellaria from a variation of forma i 



X25. 



8. Pisaster h 1219; a fi licellariae from thi 



carina, X3. These festoons are very numerous and long ii 



331 



