NO. 5 FRASER : HYDROIDS 203 



Gampanularia denticulata Clark 

 Campanularia denticulata Qi. akk, Alaskan Hyd., 1876, p. 213. 



Fraser, Hyd. Pacific Coast, 1937, p. 60. 



Distribution. — 3^ miles south of Hueneme, Calif., 29-30 fathoms; 

 of? Balboa Peninsula, Newport Inlet, intertidal ; ^ mile off White Cove, 

 Santa Catalina Island, 33-37 fathoms; off San Nicolas Island 28-31 

 fathoms; off Rocky Point, Sonora, Mexico, 10 fathoms; Tenacatita Bay, 

 shore. 



Gampanularia (?) diversa, new species 

 Plate 23, Fig. 4 



Trophosome. — Colonies, up to 3.5 cm, each consists of a main stem, 

 stout, rigid, strongly but loosely fascicled, with the branches simple unless 

 in the proximal portion, short, slender, irregularly arranged, in strong 

 contrast, as far as appearance goes, to the stem; the primary branches 

 may branch again. The branch is annulated with 5-6 annulations, im- 

 mediately distal to the base of the branchlets, or the pedicels of the hydro- 

 thecae. The hydrotheca is supported on a short pedicel, annulated 

 throughout or nearly so; the hydrotheca is large, among the largest in the 

 Campanularidae, long, with gracefully curved sides, the diameter gradu- 

 ally and regularly increasing from base to margin, 1.3x0.5 mm. The 

 margin is provided with 11-12 teeth, deeply cut, with rounded sinuses, 

 each tooth with 2 acute cusps, the sinus, relatively deep and rounded. 



Gonosome. — Not observed. 



Distribution. — All of the colonies examined were obtained from Sta- 

 tion 1401-41, 6>4 miles ENE of Long Point, Santa Catalina Island, in 

 300 fathoms, in each case closely associated with large colonies of 

 Acryptolaria conferta Allman. 



Rernarks. — This species shows much greater resemblance to C. gelati- 

 nosa (Pallas) than to any other American species. The fascicled stem is 

 similar, the branching is quite different as the complete branch cor- 

 responds very well with only the terminal portion of one of the much 

 more numerous branches of C. gelatinosa. Since the branches are so few, 

 so small, and so scattered, there is nothing here to give the gelatinous 

 appearance of the colony of C. gelatinosa. The hydrotheca is similar in 

 shape but not in size, as both length and diameter are almost twice as 



