194 THE ROYAL SOCIETY OF CANADA 



Distribution. — Puget Sound (Nutting) ; Port Townshend (Cal- 

 kins) ; Albatross Station 2865, N. 48° 12', W. 122° 49', 40 fathoms, 

 Station 2866, N. 48° 09', W. 125° 03', 171 fathoms (Nutting); San 

 Juan Archipelago, Dodds Narrows, Departure Bay (Fraser) ; almost 

 everywhere in the region in dredged material. 



I do not think there is any doubt that Sertularella dentifcra 

 Torrey is the same as 5. tricuspidata. 



Sertularella turgida (Trask) 



PI. XXXI, Fig. 118 



Sertularia turgida Trask, Proc. Cal. Acad. Sc., 1857, p. 113. 

 Sertularella turgida Fraser, West Coast Hydroids, 1911, p. 71. 



Trophosome. — Colony small; stem stout, either unbranched or 

 with a few irregularly placed branches that are similar to the main 

 stem; hydrothecse alternate, rather distant, nearly tubular but some- 

 what swollen at the base, more than one-half free; margin with three 

 teeth; two of which are stronger than the third; operculum of three 

 flaps; surface usually smooth. 



Gonosome. — Gonangia borne in a row in the axils of the hydro- 

 thecae, large, elongated oval; margin with three or four spines; spines 

 also present in varying numbers on the distal portion of the surface 

 which is not annulated. 



Distribution. — Vancouver I. (Clark) ; Townshend Harbor (Calkins) ; 

 San Juan Archipelago, Victoria, Port Renfrew, Ucluelet, Dodds 

 Narrows, Departure Bay (Fraser); Nawhitti Bar, Clayuquot Sound, 

 off Lasqueti I., Nanoose Bay, Northumberland Channel, Pylades 

 Channel, Gabriola Pass, Gabriola Reefs, Porlier Pass, off Matia I. 

 Upright Channel, Friday Harbor, off Brown I., Port Townshend, 

 Coupeville. 



Genus SERTULARIA 



Trophosome. — Hydrotheca? in two rows, occurring in pairs which 

 are strictly opposite throughout or at least on the distal portion of the 

 branches. 



Gonosome— Gonangia oval or ovate, usually smooth. 



Sertularia furcata Trask 



PI. XXXI, Fig. 119 



.Sertularia furcata Trask, Proc. Cal. Acad. Sc, 1857, p. 112. 

 Sertularia furcata Fraser, West Coast Hydroids, 1911, p. 72. 



