[fraser] HYDROIDS OF THE VANCOUVER ISLAND REGION 183 



is a light horn color the branches are quite white. The nodes are not 

 regular in the main stem and are absent, or nearly so, in the branches; 

 hydrothecae alternate, rather distant, short and thick with a short 

 neck; margin not expanded, nearly circular but straight on the ad- 

 cauline side. 



Gonosome. — Gonangia arranged in rows on the face of the 

 branches, oblong, without a distinct pedicel or collar; surface smooth. 



Distribution.— Albatross Station 2861, N. 51° 14', W. 129° 50', 

 40 fathoms, Station 2873, N. 48° 30', W. 124° 57', 40 fathoms (Nutt- 

 ing); San Juan Archipelago, Dodds Narrows, Departure Bay (Fraser); 

 China Hat, Clayuquot Sound, Swiftsure Shoal, off Lasqueti I., Nanoose 

 Bay, off Clarke Rock, Departure Bay, north of Gabriola I., Northum- 

 berland Channel, Dodds Narrows, Gabriola Reefs, Whaleboat Passage, 

 off Matia I., off Waldron I., off O'Neale I., off Brown I., Upright 

 Channel, Griffin Bay, Deer Harbor, Port Townshend, Puget Sound. 



Abietinaria turgida (Clark) 



PI. XXYII, Fig. 99 



Thuiaria turgida Clark, Alaskan Hydroids, 1876, p. 229. 

 Abietinara turgida Fraser, West Coast Hydroids, 1911, p. 63. 



Trophosomc. — Stem straight stout, distal portion branched; 

 branches irregularly pinnate, constricted at the base, similar to the 

 main stem; branched again either alternately or dichotomously ; 

 internodes on main stem short, on branches long; hydrothecae nearly 

 opposite, crowded, tubular, with a very slight narrowing distally, 

 almost wholly immersed; margin entire, circular at right angles to 

 the hydrotheca. 



Gonosome. — Gonangia crowded on the stem and proximal portion 

 of the branches, large, oval, with a short collar, aperture small, pedicel 

 short; distinct longitudinal crests present. 



Distribution. — Gabriola Pass, off Matia I., Port Townshend. 



Abietinaria variabilis (Clark) 



PI. XXVII, Fig. 100 



Sertidaria variabilis Clark, Alaskan Hydroids, 1876, P. 221. 

 Abietinaria variabilis Fraser, West Coast Hydroids, 1911, p. 63. 



Trophosome- -Stem stout, straight or slightly flexuous; branches 

 regularly alternate, stout and long, constricted at the base; hydro- 

 thecae alternate, much the same size for the proximal two-thirds 

 or three-fourths which is immersed and then narrowing suddenly 

 to form a short neck, the margin very little flaring, oblique relatively 

 to the stem but nearlv horizontal. 



