50 C. McLEAN FRASEE 



HALECIUM WASHINGTON! Nutting 



Halecmm geniculatum Nutting, Hydroids of Alaska and Piiget Sound, 

 1899, p. 744. 

 Halecium nuttingi Torrey, Hydroida of the Pacific Coast, 1902, p. 50. 

 Ealecium wasMngtoni Nutting, Am. Nat., XXXV, 1901, p. 789. 

 Halecium wasMngtoni Torrey, Hydroids of San Diego, 1904, p. 11. 



Distribution. — Puget Sound (Nutting) ; San Diego (Torrey) ; 

 Dodd's Narrows, San Juan Archipelago. 



LAFCEID^ 



TropJiosome. — Hydrothec^ tubular, margins even, opercula 

 absent. The hydrothecal cavity is not divided from the stem 

 cavity by a partial septum, except in the genus Hebella. Hy- 

 dranth with a conical hypostome. 



Gonosome. — "Gonangia forming a 'Coppinia' mass." (Nut- 

 ting). 



Genus FILELLUM 



* 



Trophosome. — Stem a slender rootstock, parasitic on other 

 hydroids. Hydrothecae partly adherent, curved outward at the 

 point of separation. 



Gonosome. — A 'Coppinia' mass. 



FILELLUM EXPANSUM Levinsen 



Fik'Uum expansum Levinsen, Hydroider fra Griinland 's Vestkyst, 1893, 

 p. 30. 



Distribution. — Deer Harbor, San Juan, in Prof. Kincaid's 

 Collection. 



FILELLUM SERPENS (Hassell) 



Campanularia serpens Hassell, Trans. Micro. Soc, III, 1852, p. 163. 

 Filellum serpens Nutting, Hydroids of the Harriman Ex. 1901, p. 179. 



Distribution. — Juneau, Alaska (Nutting) ; San Juan Archi- 

 pelago. 



Genus GEAMMARIA 



Trophosome. — Stem fascicled, consisting of a hydrothecate 

 axial tube surrounded by a certain number of peripheral, non- 

 hydrothecate tubes. The hydrothecas are partly adherent. 



Gonosome. — A 'Coppinia' mass. 



GRAMMARIA IMMERSA Nutting 

 Grammaria immersa Nutting, Hydroids of the Harriman Ex. 1901, p. 178. 

 Distribution. — St. Paul's Harbor, Kadiak, Alaska (Nutting) ; 



