NO. 5 FRASER : HYDROIDS 239 



Distribution. — Yaquina Bay, Ore., 2-5 fathoms; 3J^ miles east of 

 South Point, Santa Rosa Island, 35-38 fathoms; south of Santa Cruz 

 Island, 37-40 fathoms; 5^ mile north of Piatt Harbor, 31-37 fathoms; 

 1 mile south of Gull Island, south of Santa Cruz Island, 34-41 fathoms; 

 1 mile WNW of Anacapa Island, 43-45 fathoms ; ^ mile south of west 

 end of Anacapa Island, 25-26 fathoms; Avalon Bay, Santa Catalina 

 Island, 98-116 fathoms; Pyramid Cove, San Clemente Island, 10 fath- 

 oms; off San Nicolas Island, 28-31 and 40-48 fathoms. 



Genus HYDRALLMANIA 



Hydrallmania distans Nutting 



Hydrallmania distansNuTTi'NG, Hyd. Alaska and Puget Sound, 1899, 



p. 746. 



Fraser, Hyd. Pacific Coast, 1937, p. 140. 

 Distribution. — Near mouth of Salinas River, Monterey Bay, Calif., 

 10-13 fathoms; off San Pedro breakwater, 14 fathoms; 3 miles off Seal 

 Beach, 14 fathoms; 5 miles SE of Santa Catalina Island, 140-150 fath- 

 oms; off San Nicolas Island, 28-31 fathoms; Coronado Beach, San Diego, 

 6-7 fathoms. 



Genus PASYA 



Pasya quadridentata (Ellis and Solander) 



SertulariaquadridentataY.iA.is and Solander, Nat. Hist. Zooph., 1786, 



p. 57. 

 Pasythea quadridentata Nutting, Amer. Hyd., II, 1904, p. 75. 

 Pasya quadridentata Eraser, Hancock Hyd., 1, 1938, p. 50. 



Eraser, ibid., 2, 1938, p. 110. 

 Eraser, ibid., 3, 1938, p. 134. 

 Distribution. — South Bay, Cedros Island, 10-15 fathoms; Dewey 

 Channel, opposite San Eugenio Point, Lower Calif., 21-24 fathoms; off 

 San Juanico Bay, 16 fathoms. 



Genus SELAGINOPSIS 



Selaginopsis constans, new species 



Plate 27, Fig. 17 



Trophosome. — Colony 6 cm, coarse and rigid, as in the other species 



of Selaginopsis; there are no distintc nodes in either stem or branches. 



There are but few branches, arranged alternately in the distal portion of 



the colony ; each branch is constricted at the base. The arrangement of the 



hydrothecae is distinctive, as there is the same number of series, 4, in the 



