[fraser] HYDROIDS OF THE VANCOUVER ISLAM) REGION 159 



Distribution. — Rose Spit, Departure Bay. 



I see nothing to distinguish this from C. humilis except its size 

 but it agrees with Hincks' C. grandis and I have therefore recorded 

 it as a separate species. It may be that, as in the case of Calycella 

 syringa, there is but one species with great variation in size. Since no 

 gonosome has been found in the case of either it makes it even more 

 difficult to decide if it is wise to make two species. 



Cuspidella humilis (Alder) 

 PI. XVIII, Fig. 63 



Campanularia humilis Alder, Trans. Tyneside Nat. F.C., 1862, p. 239. 

 Cuspidella humilis Fraser, West Coast Hydroids, 1911, p. 44. 



Trophosome. — Stolon much more slender than in C. grandis; 

 hydrothecœ stouter in comparison with their length but quite minute, 

 cylindrical, sessile; operculum of 10-12 segments. 



Gonosome. — Unknown. 



Distribution. — Departure Bay, San. Juan Archipelago (Fraser) ; 

 off Clarke Rock, north of Cabriola I., Northumberland Channel, 

 Dodds Narrows, Pylades Channel, Cabriola Pass, Ruxton Passage, 

 Whaleboat Passage, Friday Harbor. 



Genus LOVENELLA 



Trophosome. — Colony branched or unbranched; hydrotheca 

 turbinate; operculum sharply defined by a sinuous margin on the 

 tube of the hydrotheca. 



Gonosome. — "Gonangia borne on the stems, producing free, bell- 

 shaped medusae with eight tentacles in two sets, and four lithocysts". 

 (Nutting). 



Lovenella producta (Sars) 



PI. XVIII, Fig. 64 



Calycella producta Sars, Norges Hydroider, 1873, p. 30. 

 Lovenella producta Fraser, West Coast Hydroids, 1911, p. 44. 



Trophosome. — Stems radiate in all directions from an irregularly 

 branched stolon, often densely aggregated, usually unbranched but 

 occasionally with one or two branches which grow out almost at right 

 angles and then turn upward to overtop the stem ; pedicels vary much 

 in length up to 6 mm., annulated at the base and more or less annulated 

 throughout the remainder; they pass almost imperceptibly into the 

 turbinate hydrothecae ; margin of hydrotheca very "distinctly scalloped 

 for the base of the segments of the operculum, 12 or more in number; 



