ASTEROIDEA OF NORTH PACIFIC AND ADJACENT WATERS — FISHER. 295 



Specimens of Uenricia atpera aamined — Continued. 



Locality. 



2967 OS Santa Barbara. 



3051 o Heceta Bank, Oregon , 



3052. 



3053 1 do.. 



3087. 

 3095. 

 3119. 



3459. 

 3462. 

 348C. 

 3602. 

 4239. 



425S. 

 42911 

 4431. 

 4532. 

 4534. 

 4535. 

 4551. 

 4552. 

 4553. 

 45oo., 

 45580 

 4777.. 

 4784<i. 

 4790.. 

 4792 a. 



Oa Alseya River, Oregon 



Off Orford Roof. Oregon 



Monterey Bay, California 



Near Unalaska 



Straits of Fiica, Washington 



Admiralty Inlet, Washington 



Bering Sea, west ot Prlbllot Islands . 



.do. 



Junction Clarence Strait and Behm 



Canal, Alaska. 

 Rear Funter Bay, Lynn Canal, .\laska 



SheUkof Strait, Alaska 



Oa Santa Cruz Islands, California. 



Monterey Bay 



....do 



Monterey Bay (70 Fathom Bank)., 

 ...do 



.do.. 



Monterey Bay 



NearSeniisopoehnol Island, .\leutlans. 



Near Attu Island, .\leiillans 



Bering Island, Comuuinder Islands . . 



.do. 



Depth. 



300-313 

 05-IS 

 30-11 



30 

 86-76 

 71.-54 

 56-46 

 73-66 

 74-65 



N'atum of bottom. 



coarse mud 



coarse broken shells . 

 coral, broken shelLi.. 

 do 



coral, pebbles 



rocks, stones, shells... 



rocky, coral 



block pebbles 



gray sand 



dark sand, rocky 



green mud, fine sand. 



green mud, sand 



coarse sand, rocky 



mad 



blue mud, sand, gravel... 

 mud, gray sand, rocks.... 



gray sand, rocks 



hard gray sand 



do 



coarse sand, shells, rocks. 



green mud, rocks 



rocks 



green mud, rocks 



rocks 



fine gravel 



coarse pebbles 



pebbles 



.do.. 



Nnmbar 



CoUeoUoo. 



U. 8. Ntt. Mm. 



Do. 

 Do. 

 Aaatnu.lWi. 



Do. 

 AOalrou, 1904. 



AOatmu.iiOi. 



Do. 

 Do. 



<■ Not typical. 



Bernails. — This species is easily recognized on account of the rather slender 

 rigid raj's, vory open and sunken papular areas, the rough minute spinelets, and 

 simple adambulacral armature. It is, however, variable, especially in the southern 

 part of its range, and specimens occur which are didicult to distinguisli from //. 

 leviuscula annectens. There are indications that this species crosses with Jeriuscuh, 

 muUispina, and eschrichtii. It is ])ossible that some of the specimens ranked as 

 annectens are In-brids. 



In spite of the intermediate nature of many specimens (as for instance 77. 

 leviuscula annectens) I have kept this well-marked type as a distinct species, for 

 reasons mentioned in the introductory notes to tlie genus. 



HKNIUCIA SPICCLIFERA (CUrk). 

 Cribrella spiculi/era Clark, Proc. Bost. Soo. Nat. Dist., vol. 29, No. 1.5, May, 1901, p. ;i-.'H, p|. .': 



pi. .% fig. 1. 

 Diagnosis. — R = 5 r; rays somewhat tumid near base; abnctinal plates rather 

 large and not closely crowded, the plates much less crowded and the groups of 

 papula} much more numerous than in //. leviu.tcuhi: plates irregularly rounded or 

 crescentic; marginal and actinal intermediiite })lat<>s forming tlmn- rows all along 

 ray, the latter extending to tip; abactinal s[)iiu'lets very numerous, longer ami 



