PLATE LXXX. 



Fig. I. Orthasterias forreri (deLoriol) Verrill. Minor pedicellarise, 



a, h, c, d, mounted in balsam ; X 25. 

 Figs, la, la'. The same specimen. Two large dorsal dermal major pedicel- 



lariae; X 10. 

 Fig. ih. The same specimen, a-d, four detached valves of minor pedi- 



cellariae, mounted in balsam ; X 45- 

 Fig. ic. The same specimen. A cleaned dorsal spine ; X 5- 



Figs, id, le. The same. Dorsal plates; X 5- i^, dorso-lateral with a spine; 



le, carinal seen from inner side; c, connective ossicle; d, d', 



facets for articulation of transverse connective ossicles. 

 Fig. 2. Orthasterias dawsoni Verrill. Type, a-f, disarticulated valves 



of minor pedicellariae mounted in balsam; g, one entire; 



X83. 

 Figs. 3, 3a. Orthasterias calif ornica Verrill. Type. Minor pedicellariae 



mounted in balsam; ^a, a, b, are entire; the rest, c, f, are 



disarticulated valves ; X 83. 

 Fia 4. Pisaster papulosus Verrill. Type. Major pedicellaria ; X 10. 



(x6a) 



