310 



BULLETIN 76, UNITED STATES NATIONAL, MUSEUM. 



the synactinals, instead of being smaller than in Atlantic endeca, are distinctly 

 larger, on comparison; but in specimens from 4246 the synactinals are just about 

 the same as in Cape Cod examples. The distance which the actinal intermediate 

 plates extend along the ray is variable in both sets of specimens. In specimens 

 from 4246 the plates extend slightly less to over one-half the length of free part of 

 rav. A comparison of specimens with reference to the above features does not 

 enforce the differences alluded to in the description of galaxides. 



Adanihulacral and dental armature. — Furrow spinelets two or three, rarely four, 

 or near tip of ray oidy one, and conspicuously shorter than the actinal comb. There 

 is, however, some variation in the length of the furrow spinelets (in both Atlantic 

 and Pacific examples). On the whole, the Pacific examples do not seem to have 

 longer spinelets than the Atlantic, and the limits of variation are about the same in 

 the two lots. When there are two furrow s[)inelets either one may be the longer, 

 or the two subequal; when three are present usually the median is longest and some- 

 times one is rudimentary. The actinal comb is curved (not straight as in dawsoni) 

 and composed of six to eight sharp skin-covered spinules, the two or three iimer the 

 longest and stoutest, the others gi-aded in length toward the outermost. These 

 spines stand little or not at all above the level of the marginal pseudopaxillse, being 

 therefore different from dawsoni and paxillatus. 



The armature of the mouth plates is typical of endeca — seven to nine marginal 

 spinules, of which the inner two or three are much larger than the rest, and six to 

 fifteen suborals, in two series (or a roughly triangular group, the inner spinules 

 being the larger). 



Type-locality. — "InOceano Norvegico" (Linnaeus). 



Distribution. — Bering Sea south to Victoria, British Columbia (not yet known 

 from the Asiatic coast). In the west Atlantic from Cape Cod to Labrador, thence 

 to Greenland and Davis Strait, Iceland and the Faroe Islands; Ireland, the Irish 

 Sea, Orkneys, Shetland Islands, Scotland, and England (south to lat. 55° N.) ; north- 

 ern North Sea to the Kattegat, thence along the Norwegian Coast to Finmark, thence 

 to Spitzbergen and westward to lat. 80° 03' N., the most northern station yet 

 known ; eastward through Barents Sea, along the Murman coast, Kara Sea, thence 

 along the Siberian coast to the Gulf of Khatanga (long. 113° 30' E.). From here 

 to Bering Sea the species is not yet known. (Emended, from Ludwig, Fauna 

 Arctica, Vol. 1, p. 465.) 



Specimens examined. — Twelve, from the following locahties: 



Specimens of Solaster endeca examined. 



Nature of bottom. 



424G.. 



Off Shumsgin Islands. Alaska 



Queen Charlotte Sound, British Co- 

 lumbia. 



Kasaan Bay, Prince of Wales Island, 

 Alaska. 



Afognak Island, near Kadlak Island, 

 Alaska. 



Karluk, Kadlak 



238 



123-101 



gray sand, broken shells., 

 gray sand and pebbles . . . 



gray green mud, ( 



17-12 I sticky mud 



Lowtide? 



U, S. Nat. Mus. 



Albatross, 1903. 



Stanford University. 



