[fraser] HYDROIDS OF THE VANCOUVER ISLAND REGION 129 



Tubularia larynx Calkins, Some Hydroids of Puget Sound, 1899, 



p. 335. 

 Tubularia larynx Fraser, West Coast Hydroids, 1911, p. 28. 



Trophosome. — Colony consisting of stems much branched and some- 

 what tangled at the base, usually extensively annulated but the nature 

 of the annulations may vary. They may be deeply cut as in some 

 of the Eudendridœ, but more commonly the furrows as well as the 

 ridges are rounded to give the surface a wavy appearance. Ten- 

 tacles approximately the same number in the proximal and distal 

 sets, about 20. 



Gonosome. — Gonophores arranged in clusters that are denser 

 and more compact than in other species described. The tentacular 

 processes are not extensively developed. 



Color. — Perisarc light horn color, hydranths and gonophores 

 pink or scarlet. 



Distribution. — Port Townshend (Calkins) ; Nanoose Bay, Gabri- 

 ola Pass, off Pt. Richardson and at other points near Friday Harbor, 

 Samish Bay. 



Calkins in reporting this species from Port Townshend Harbor, 



mentions several points in which his specimens differ from those 



described by Hincks. Those I have found more nearly agree with 



Hincks'. I found few of them singly and in no case did I find any in 



which the proximal tentacles were twice as many as the distal or 



nearly so; they always very nearly agreed. I found some specimens 



off Brown Island in which the hydranth body was well developed, 



as shown in Calkins' figure and the adjacent proximal tentacles were 



some distance apart at their bases but even in these there were as 



many oral as aboral tentacles. The gonophore clusters were just 



starting to develop. Some of the oral tentacles when contracted 



appeared to be knobbed at the end so that the hydranth had the 



appearance of Acinar adria larynx Wright as figured by Hincks, the 



gonophore clusters had a resemblance also. It may be that these 



specimens belonged to that species but it seems hardly probable 



as they were found along with the typical specimens of Tubularia 



larynx. __ 



Family Hybocodonidae 



Trophosome. — "Colony unbranched. Stem with a distinct chiti- 

 nous perisarc, and rooted by a true hydrorhiza. Hydranths large, 

 with a proximal and distal set of filiform tentacles" (Nutting). 



Gonosome. — "Gonophores producing free medusae" (Nutting). 



Genus HYBOCODON 

 Trophosome. — "Stem with distinct deeply annulated expansion 



