NO. 1989. A8CIDIANS FROM NORTHEASTERN PACIFIC— RITTER. 443 



deficiency. On the whole there is little question about the identifi- 

 cation of the small specimens. 



The collection contains several lots of this species, all but one 

 obtained by Dr. W. H. Dall. One lot of three individuals is from 

 Chichagof Harbor, Attn, Alaska, 5 to 7 fathoms, gravel and sand bot- 

 tom, 1873. Three lots, containing over 200 specimens, many very 

 small, from Kyska Harbor, also from the Aleutian Island region, 7 to 

 12 fathoms; and still another lot of 5 large, very sandy individuals 

 from Kyska Harbor (type-locality) . A half dozen specimens, Alba- 

 tross station 3637, 57° 06' 30'' N.; 170° 28' W., 32 fathoms, crs. g., 

 July 18, 1896. 



Type.— C&t, No. 5678 U.S.N.M. 



A bottle labeled "Kyska Harbor, 9-12 fathoms, 1873," of the 

 Alaskan collections by W. H. Dall, contains about 35 specimens which 

 externally mucl^resemble the specimens f.rom the same locality which 

 I have regarded as the young of Eugynoides daUi. The only difficulty, 

 so far as surface appearances go, in thus disposing of these is the fact 

 that no siphons or orifices can be seen on them, while the 3^oung 

 E. dalli show the siphons in almost all cases, as already described. 

 But dissection of the animals discovers a remarkable state of things. 

 Besides the siphons and some of the mantle immediately adjacent to 

 these, no ascidian organs can be made out. In most specimens 

 examined a large number of spherical, amber-colored, semitransparent 

 hard bodies are present. These, one would say offhand, are eggs, 

 and such they may be; but no nuclei or other structures character- 

 istic of ascidian eggs are recognizable. Aside from these ova-like 

 bodies, the material filling the test (for such the sand-covered outer 

 coat seems undoubtedly to be) consists partly of a dark, hard, amor- 

 phous mass, and two, generally irregular, elongated, granular, dull, 

 white bodies. As to what all this means I can offer only the most 

 dubious conjecture. The materials described call to mind what has 

 been regarded by several observers and what I myself have seen some 

 of, in some of the social and compound ascidians, as reserve material 

 in a degenerative or hibernating state of the colonies, this to be made 

 use of as food in the rejuvenation of the colony. But such a thing 

 is wholly unknown, so far as I am aware, in simple ascidians, and I 

 consider the suggestion as of barely sufficient probability to make 

 it worth mentioning pending an opportunity of further examination. 



EUGYRIOIDES KARA (Kiaer). 



Paramolgula rara Ejaer, 1896, p. 17, pi. 5, figs. 16-19. — Hartmeyer, 1903, p. 



132.— Redikorzew, 1907, p. 3. 

 Eugynoides rara Hartmeyer, 1909a, p. 1321. 



There are about 30 specimens from Kyska Harbor mingled with 

 E. dalli, which I assign to Kiaer's species, hitherto known only from 

 the coasts of Norway and European Siberia. There is no difficulty 



