WEST COAST HYDEOIDS 69 



specimens in which they were present, there were stems with 

 only one hydrotheca, some with two, and none with more than 

 three or four. The figures showing the development, were ob- 

 tained from the same specimen as that showing the gonangium. 



?SERTULAEELLA DEXTIFEEA Torrey 



SertulareUa dentifera Torrey, Hydroida of the Pacific Coast, 1902, p. 61. 

 SertiiJareUa dentifera Nutting, American Hydroids, Part II, 1904, p. 100. 



Distribution. — San Pedro, Cal. (Torrey). 



I have found specimens of S. tricuspidata with reduplications 

 in the margin of the hydrothecfP, in some cases even more marked 

 than Dr. Torrey shows in his figure, and at the same time they 

 resemble his figure in every other respect except that I have not 

 found any in which the branches arise from the lumen of the 

 hydrothecje. In the figure one branch is shown to have its origin 

 in that way, while the other has not. If the former is the normal 

 condition, the species, as he says, should belong to the genus 

 Thecocladium; if the latter it is a SertulareUa, and would more 

 likely be an abnormal specimen of S. tricuspidata, than of S. 

 tropica as Prof. Nutting suggests, because 8. tricuspidata is very 

 common along the whole Pacific Coast, and S. tropica has not 

 been reported. In a later paper^- Prof. Nutting recognizes the 

 species, but his figure of the gonangium gives the further evi- 

 dence that was needed to show that it is really >S'. tricuspidata. 



SEETULAEELLA ELECtANS Xuttiug 

 SertulareUa elegaus Nuttixg, American Hydroids. Part II, 1904, p. 98. 

 Distrihution.—AlhRtross Station 2842, N. 54° 15', W. 166° 

 03', 72 fathoms (Nutting). 



SEETULAEELLA FUSIFOE:NnS (Hincks) 



Sertnlaria fusiformis Hincks, Ann. and Mag., 3rd Ser., VIII, 1861, p. 253. 

 SertulareUa fusiformis Torrey, Hydroida of the Pacific Coast, 1902, p. 61. 

 SertulareUa fusiformis Nutting, American Hydroids, Part II, 1904, p. 89. 



Distrihution. — San Francisco, Cal. (Torrey). 



SEETULAEELLA LEVINSENI Nutting 

 SertulareUa levinseni Nutting, American Hydroids, Part II, 1904, p. 100. 



Distribution.— Alhaivoss Station 2842, N. 54° 15', W. 166° 

 03', 72 fathoms (Nutting). 



52 Hydroids of the Hawaiian Islands, 1905, p. 948. 



