QUEEN CHARLOTTE ISLANDS. 193 B 



surface yellowish. The rays are long, round, regularly tapered. 

 Upper surface covered with clusters of small blunt spinules or paxillse, 

 mostly six to eight in a group, on the rays ; and ten to twelve on the 

 disk, where they are more crowded. In smaller specimens there are 

 fewer spinules in the clusters. These spinules are larger, stouter, 

 more obtuse and more numerous than in S. endeca. On the lower side 

 the interbrachial spaces are smaller than in 8. endeca, with fewer 

 plates, each of which bears a close group, usually of four or five taper- 

 ing spinules, rather larger than those of the dorsal surface, and much 

 stouter and fewer than the corresponding spinules of S. endeca. The 

 plates forming the lower margin of the disk are less prominent than in 

 ■S. endeca ; and each bears a transverse group of about twelve to sixteen 

 spinules, similar to those of the sides and under surface of the rays* 

 Along the grooves each adambulacral plate bears on its inner end two 

 small, short, tapered spines, which form a longitudinal row, and outside 

 of these a transverse row of about eight, much longer and larger, tap" 

 ered spines, with rough, blunt tips. These are stouter, less acute and 

 less rough than those of 8. endeca. The oral plates bear six strong and 

 rather long spines at the inner end, the middle ones longest. These 

 are stouter and not so long as those of 8. endeca. 



" This is, possibly, the form called Asterias endeca, var. decemradiata 

 by Brandt (Solaster decemradiatus Stimp). But Brandt gave no 

 description whatever." — Yerrill. 



Solaster Dawsoni, Yerrill. Sp. nov. Yirago Sound, in from 8 to 15 

 fathoms, one specimen. 

 " Of this species I have seen but a single dried specimen, with 

 twelve rays. Badius of the disk, -80 of an inch; of the rays, 2-10. It 

 has the general appearance and proportions of 8. endeca, as seen from 

 above, but resembles Crossaster patpposus beneath. The plates of the 

 upper surface and their clusters of spinules are even smaller, more 

 numerous and more crowded than in the former species, there being 

 usually ten to twelve minute and short spinules to each plate. The 

 plates, when denuded of spines, are small, rounded and convex. The 

 marginal plates are prominent, and each bears a prominent transverse 

 group of. numerous, small, slender spinules, forming two rows of about 

 twelve to fourteen each. The interbrachial spaces, beneath, are very 

 small and narrow, with few plates, each of which bears a group of 

 three or four slender spinules. These spaces are very much smaller 

 than in S. decemradiatus, and still smaller as compared with 8. endeca. 

 The adambulacral plates bear a longitudinal group of three, rather 

 long, slender spines on the inner end, and outside of these a transverse 

 group of four or five, scarcely larger ones. The oral plates bear six 



