242 VERRILL 



in two rows proximally. Adambulacral plates have one or two 

 furrow-spines proximally ; on actinal side two larger stoutish spines 

 obliquely placed ; and outside these, three or four smaller graded 

 spines in an irregular transverse row. 



Mr. Fisher records this from numerous localities in 26 to 313 

 fathoms, from Bering Sea to Santa Barbara, California. 



The above description is condensed from Fisher. 



Family SOLASTERIDM Perrier. 



Solasterina (sub-family of Echinasteridas) Viguier, Squelette des Stellerides, 



Nouv. Arch. Zool. Exper., vn, p. 133, pi. viii, figs. 1-7, 1878 (structure). 

 Solasicrida: Perkier, Etoiles de mer, p. 210, 1884. Sladen, Rep. Voy. CThall., 



Zool., XXX, p. 442, 1889. Perrier, Exped. Trav. et Talism., p. 151, 1894. 



Fisher, op. cit., 191 16, p. 305. 

 Echinastcridcc ipars) Perrier, Revis. Stell., Nouv. Arch, du Mus., iv, p. 358, 



1875. 

 Rays varying in number from five to thirteen or more. Dorsal 

 skeleton generally formed either by openly reticulated or loosely 

 imbricated (rarely detached, Latmastcr) ossicles, which have a con- 

 vex or elevated central boss, bearing a cluster of slender, paxilliform, 

 movable spinules, webbed together into a stellate or penicillate group 

 (pseudopaxillae). Both series of marginal plates are usually dis- 

 tinguishable, at least distally, alternate or opposite, or in one line. 

 The upper ones are often the smaller and essentially like the dorsal 

 pseudopaxillae. Both rows bear paxilliform spinelets. 



Actinal interradial pseudopaxillae are generally present and similar 

 to the dorsals. Adambulacral plates are transversely elongated and 

 bear, each, one to five or more spines, often webbed, in a longitudinal 

 row on the inner margin of the groove, and one or more clusters or a 

 transverse webbed series or comb of movable spines on the outer 

 surface. True pedicellariae are not known in most species; but 

 large specimens sometimes have a few small, bifid spines in the 

 furrow series, and in S. stimpsoni a few minute bivalve pedicellariae 

 sometimes occur on the dorsal paxillar areas. Tube-feet have 

 suckers. 



Sladen ( 1888 and 1889) divided this family into two subfamilies : 

 Solasterinae and Korethrasterinas. In this he was followed by Perrier 

 (1894, pp. 154, 158). Later these have been considered separate 

 families. 



Genus Solaster Forbes. 



Solaster (pars) Forbes, Mem. Wern. Soc, viii, p. 120, 1839; British Star- 

 fishes, p. 109, 1841. Gray, Ann. and Mag. Nat. Hist., vi, p. 183, November, 



