ASTEROIDEA OF NORTH PACIFIC AND .\DJACENT WATERS — FISHER. 291 



Specimens examined. — Forty-three, from the following h)cahtics: 

 Sptcimens of Urnricia hviiiscula dytaila examinfd. 



a These specimens are more or less aberrant, being apparently Intonnediate with Uviutcula. One from 4420 b abenaot and 

 not at all Intermediate. See pi. 74, figs. 3, 4, 5. 



HENRICIA LEVIUSCDLA ANNECTENS Fisher. 

 PI. 70, fig. 2d; pi. 71, figs. 1, 3. 

 Uenricia kiiuscula annecuns Fisher, Zool. .Vuz., vol. 35, March 29, 1910, p. 572. 



Diagnosis. — Intermediate in general appearance between U. leviusciila and 

 n. aspera, but superficially more like aspera; rays slender, disk small; abactinal 

 skeleton less open than in aspera, with smaller, deeply sunken pajnilar areas; ridges 

 inclosing papular areas not undivided as in as])eTa, but subdivided into spine-bear- 

 ing tabulae, or ])seuilopa.xillie; latter with comparatively few (five to twenty) short 

 tapering stubby spinelets in two or three rows; one to three papular pores to an 

 area; marginal plates shorter and much more compressed than in hTiuvcuh, with 

 comparatively few spinelets, the s])ine-bearing ridges of (lie two series being some- 

 times confluent; successive ridges separated by a prominent transverse groove; no 

 intermarginals beyond first two or three marginal.^;; actinal intermediate series 

 extending only part way along ray (one-half to two-thirds) as in aspera, not the 

 whole length as in leviuscuh; adanibulacral |)lates with ten to twelve sjiinelets in 

 two transverse rows, and deep in the furrow one spinelet, except near tip of ra}', 

 where there are two. 



Description and variations. — It is doubtful if a detailed description of tliis form 

 would be of any value. The figures will show the charactei-s sufliciently well. There 

 arc numerous variations from the typical forni, especially in the size of the abactinal 

 spuiclct group.--.. In some examples the pseudopaxilhe api)roach the size of those 

 of hviuscula; in otliers they are nearly as inconspicuous as in the southern specimens 

 of aspera. 



