60 A. E. Yerrill — New Genera and Species of Starfishes. 



size of the infero-marginals proximally. The actinal inter- 

 radial areas are apparently relatively larger than in endeca and 

 bear a larger number of compressed pseudopaxillse, the larger 

 ones similar to the infero-marginals and synactinals. They 

 form about sixteen radial rows, the smaller one in the median 

 rows distally. They are covered with a large number of small, 

 rather short regular spinules. 



The oral and jaw-spines are much better developed than 

 usual. The four apical spines are very large, strong, and 



Fig. 1. 



Fig. 1. — Pteraster octaster V. Dorsal side ; % nat. size. 



acute. There are six graded furrow-spines on each side. 

 The epioral spines are long and slender. They form two sub- 

 parallel rows of about eight or nine graded spines. The 

 spines in the opposed rows are often bent toward each other 

 and interlocked. The two most adoral are distinctly larger 

 than the others. 



Solaster constellatus Ver., sp. nov. Figures 3, 4. 



An 8-rayed species with a small disk and long tapered 

 arms. Radii are 21 and 78 mm ; ratios, 1 : 3.7. 



The dorsal pseudopaxillse are decidedly larger than in 

 Stimpsoni "V., which it somewhat resembles. They are stel- 

 late in form and usually, where largest, on the disk and base 

 of rays, they have a single central and about six equally spaced 

 and webbed marginal spinules, which are often fully expanded 

 and nearly horizontal, producing the appearance of a six- 



