508 PROCEEDINGS OF THE NATIONAL MUSEUM VOL.84 



The male ampullae are scattered irregularly on branchlets, between 

 cyclosystems, and are similar to those of campyleca. As noted above 

 there is a female colony (60 by 40 mm) with thickened branches 

 (Sitka), and one 75 by 55 mm wdth slender branches mostly in one 

 plane (station 4245). The female ampullae are hemispherical, smooth, 

 and slightly larger than the largest cyclosystems, but the wall is ob- 

 viously thicker than in campyleca and the chamber relatively smaller 

 as a consequence. Diameter of an average female ampulla of campy- 

 leca 1.1 mm; thickness of wall 0.05 to 0.06 mm. In paragea the same 

 dimensions are 0.85 to 1 mm, and 0.14 mm. The interior is pitted 

 but there are no spicules. 



The coenosteum is hard and the surface smooth. Under strong 

 magnification it shows the characteristic vermiculations— low ridges 

 and anastomosing microscopic grooves between them. Surface not 

 porous after cleaning with sodium hypochlorite. There are scattered 

 small dactylopores penetrating the coenosteum, often at the apex of a 

 low elevation. 



Color of dried colony creamy white (type), pale buff (Sitka, station 

 4245); pale pink ("Alaska"). 



Type.—V.S.^M. no. 42871. 



Tyj^e locality. — Near Juneau, Alaska (Tenakee Springs). Depth 

 and bottom not recorded. Specimen obtained bj^ Dr. Willis H. Rich, 

 of Stanford University. 



Specimens examined. — In addition to the type, the following: 

 Station 4245, 1 specimen, female; Sitka, Alaska, shrimp dredge, E. F. 

 Ricketts, 1932, 1 specim.en, female; Alaska, basal portion of large 

 male colonj'- and fragments of female colony; Alaska, Hans Jensen, 1 

 male specimen loaned by Dr. Hjalmar Broch (1936, p. 56). 



Distribution. — Southeastern Alaska, Yakutat to Prince of Wales 

 Island, in probably fairly shallow water to 95 fathoms. 



Remarks. — This seems to be a southern shallow-water race of 

 campyleca. The latter has been taken in deep water in southeast 

 Alaska, but the specimens, though not typical, are nearer campyleca 

 than paragea. 



As I include all Dr. Broch's Alaskan specimens of horeopadfica 

 forma typica in paragea, 1 should explain that I believe paragea has a 

 different lineage from true boreopacijica, as exemplified by the type from 

 St. Olga Bay, northeast of Vladivostok, Japan Sea. Tliis conclusion 

 is strengthened by a study of a form of boreopacijica from very cold 

 water of Okhotsk Sea, recorded in tliis paper. The resemblance be- 

 tween paragea and boreopacijica is therefore fortuitous and in my 

 opinion does not indicate very close relationship. 



The gastropore in paragea, while somewhat variable in depth, is at 

 least twice as deep as the length of the gastrostyle, and usually even 



