NEW STARFISHES FROM TIIF PACIFIC COAST 1 23 



marginal paxillae with about 35 short clavate spinelets in a 

 radiating coordinate group, and most of them also with a small 

 2-jawed valvate pedicellaria, slightly longer than spinelets ; 

 next series with about 40 spinelets, those in center of tabulum 

 stouter than the peripheral, as in superomarginal paxillae ; 

 small mid-radial paxillae with about 20 spinelets. 



Inferomarginal plates relatively narrower than in foltolata 

 (i.e., with reference to transverse axis of plate); fasciolar 

 grooves deep, and wider (with reference to long axis of ray) 

 than same dimension of special raised ridges of inferomargi- 

 nals. Outer or abactinal end of each plate with a 2-jawed 

 pedicellaria similar to that of adjacent superomarginal paxilla, 

 and with 1 or 2, usually 2, tapering sharp spines, of which 

 sometimes the inner, sometimes the outer, is the longer; the 

 longer (about 4 mm.) equal to about width of its plate; more 

 rarely 3 shorter subequal spines in transverse series on outer 

 end of plate ; spines forming a prominent marginal fringe to 

 ray ; on actinal surface of plate, 3 to 6 much shorter spinules 

 form a transverse series in line with lateral spines, or a zigzag, 

 or even double series, while margin of plate bears slender terete 

 spinelets, becoming more capillary in fasciolar grooves. 



Adambulacral armature consisting of a curved sabre-shaped 

 furrow spine, and on actinal surface 3 tapering bluntly pointed 

 spines, of which 1, the longest, stands behind furrow spine and 

 the other 2 forai a slightly oblique longitudinal series just 

 behind first actinal spine ; or 2 spines, the adoral the shorter, 

 stand in a longitudinal series just behind furrow spine, and the 

 third just outside of the aboral (longer) spine of the series ; 1 to 

 3 small slender spinelets occur on outer part of plate, frequentlv 

 3 at base of ray forming a longitudinal series, or 1 on adoral 

 edge of plate, back of outer adoral spine. 



Actinal intermediate plates of interradial region and proximal 

 half of ray paxilliform, surmounted by a prominent 3-jawed 

 pedicellaria which is surrounded at base by numerous slender 

 spinelets in a calyx-like whorl. Each pedicellaria is conical 

 and 1.5 to 2 times as high as its width at base. 



Mouth plates narrow, with 6 or 7 marginal spines and 7 or 8 

 superficial ones, forming together a double series on the raised 



