222 VERRILL 



After a careful study of the type I cannot see any good reasons for 

 considering spiculifera a real species, distinct from leviuscula. 

 Some of the differences are due to the somewhat flaccid condition of 

 the alcoholic specimens. Intermediate specimens are of frequent 

 occurrence in the same region. 



Puget Sound (Expedition of Columbia University, 1896-7). 



Other good examples are from Kadiak, 5 fathoms, and Sitka 

 (W. R. Coe, Harriman Expedition). 



A specimen similar to the above, in many respects, has been sent 

 to me by the U. S. National Museum. It was taken at Bering 

 Island by Mr. N. Grebnitsky. It is the specimen figured (pi. cvii, 

 fig. 3 ; and pi. lxxxvii, figs. 2, 20) . 



I believe that many of the intermediates are the same as spiculi- 

 fera, which has a decided resemblance to leviuscula dorsally. The 

 more arctic specimens may have had a different origin, and belong 

 with a different species, more nearly related to sanguinolenta. The 

 four specimens figured by Fisher are all from the Aleutian Islands 

 and Kadiak, within the known range of leviuscula. 



I should refer most of his figured specimens to spiculifera, judging 

 from the description and figures, which are very good. Perhaps 

 it is merely the normal cold water form of leviuscula. 



HENRICIA LEVIUSCULA, Var. MULTISPINA Fisher. 



Henricia multispina Fisher, op. cit., 1910, p. 571; 1911b, p. 286 (pars); pis. 

 Lxxii and lxxiii (pars). 



H. multispina Fisher, as figured, differs but slightly, and perhaps 

 ought to be called the same as spiculifera. Some of the differences 

 given by Fisher, on his p. 297, do not hold good, being partly due 

 to the different states of preservation. This applies particularly to 

 the dorsal skeleton. The arrangement of the adambulacral spines is 

 essentially the same, but Clark's diagrammatic figure is misleading. 

 Such differences as actually exist seem trivial and such as are notori- 

 ously variable. 



The particular point which makes the full identity doubtful is the 

 fact that some of Dr. Fisher's specimens of multispina came from 

 Bering Sea and Siberia, far north of the ordinary range of leviuscula. 

 The type was from the Aleutian Islands. Fisher himself states, on 

 pp. 288, 289, that large numbers of his specimens from the shore 

 and very shallow water, south of the Aleutian Islands, at Bristol 

 Bay, Kadiak, etc., are intermediate between the type and leviuscula. 

 However, Dr. Fisher himself records leviuscula from Bering Sea. 



