60 University of California Publications. [zoology. 



Dutch Harbor, Al. (Nutting). New England coast (Verrill). 

 West Indies, 450 fathoms (Allman). British Coast (Hineks). 

 North Cape, Norway (Sars). Spitzbergen (Mark.-T.). 



Lafoea gracillima (Alder). 



Campanularia gracillima, Alder, Tr. Tynes, N. F. C, 1857, p. 39. 

 Lafoea gracillima, Clark, Proc. Ac. N. Se. Phil., 1876, p. 216. Nutting, 



Proe. U. S. Nat. Mus., 1899, XXI, p. 741; Proc. Wash. Ac. So., 



1901, III, p. 177. 



Distribution. San Pedro, Cal. Puget Sound; Juneau, Berg 

 Inlet, Orca, Al. (Nutting). Shumagin Is., beach, and Sitka, 

 Al., 15 fathoms, gravel and mud (Clark). New England coast 

 (Verrill). British coast (Alder) . Spitzbergen (Mark. -Turn.) . 



No gonosome. August 1, 1901. 



Fam. Sertulariidae. 



Vrophosome. Hydrothecae sessile, more or less adnate to stem, in two 

 or more series, separated from stem by basal septum. Hydranth with a 

 conical proboscis. 



Gonosome. Gonothecae with fixed gonophores. 



Owing to our insufficient knowledge of the natural affinities 

 of the members of this family, I have adopted as a temporary 

 method of classification the system of groups proposed by 

 Schneider ('97). With very few exceptions the original generic 

 names have been retained. 



Sertularella group. 



Hydrothecae alternate, one to each internode. 



Sertularella conica Allman. 



Sertularella conica, Allman, Mem. Harv. Mus. Comp. Zool., 1877, V, p. 

 21. 



Distribution. San Pedro, Cal., S. W. of Tortugas. 60 

 fathoms (Allman). 



The specimens at hand agree perfectly with Allman 's figures 

 and description, though the latter does not indicate the range of 

 variation. The habit is nearly simple and the hydrothecae are 

 always wrinkled transversely, though they may appi'oximate in 

 general form the hydrothecae of 8. polyzonias. The internodes 

 of the stem vary also, in length and thickness. There is one 

 character, however, which seems to separate this species defl- 



