NEW STARFISHES FROM THE PACIFIC COAST 1 29 



(frequently a group of 3) ; and behind them 3 or 4 much shorter 

 graduated spinelets in a single zig-zag series, all more or less 

 united basally by membrane. Armature varies greatly, some- 

 times 2 transverse series of spines being present, and the spines 

 themselves vary in shape from slender cylindrical tapering to 

 thick, clavate and blunt. Armature generally has appearance 

 of being in a single series and rather sparse. The outer spine- 

 lets of some specimens (those which have very minute spinelets 

 generally) are buried in membrane and all but invisible. 



Madreporic body variable — usually subtubercular, roundish, 

 with coarse striations. 



Color in life : Abactinal surface deep chrome yellow ; papu- 

 lar areas deep saffron yellow ; actinal surface pale Indian 

 yellow. 



Type, No. 21930, U. S. Nat. Mus. Type locality, Alba- 

 tross Station 3052, off Oregon in 48 fathoms, on " coral," 

 broken shells and rocky bottom. 



HENRICIA POLYACANTHA Fisher, new species. 



Rays 5. R = 66 mm.; r=nmm.; R = 6r. Breadth of 

 ray at base, 13 mm. 



Rays moderately to decidedly slender, very flexible, tapering 

 gradually to bluntly pointed, upturned tip ; abactinal surface 

 usually collapsed more or less ; disk rather small ; adambula- 

 cral plates at base of ray with 30 to 40 actinal spinelets, and in 

 furrow, instead of the usual single spinelet, 2 to 6 such spine- 

 lets grouped or in a vertical series ; always more than 1 furrow 

 spinelet ; at base of ray always more than 3. 



Abactinal and lateral surfaces of rays covered with small, 

 evenly-spaced pseudopaxillge, leaving papular areas consider- 

 ably larger than the plates; papulae 1 to an area, large. 

 Without aid of a glass the papular areas appear roundish. 

 Paxilla? more or less elongated in one direction ; convex, cov- 

 ered with exceedingly small spinelets, which are numerous, but 

 vary greatly in number, according to the size of pseudopaxilla ; 

 10 to 40 is the usual number. Paxillae form a more or less evi- 

 dent median radial line along ray. 



