NO. 1 FRASER: HYDROIDS 33 



margin; length 1.0 mm., greatest breadth 0.5 mm.; margin with 16-18 

 slender, blunt, deeply cut teeth; distinct lines running backward from 

 the spaces between the teeth. 



Gonosome. — Not observed. 



Distribution. — Port Utria, 20 fathoms. 



Glytia raridentata (Alder) 

 Plate 8, Fig. 34 



Campantilaria raridentata Alder^ Ann. and Mag. Nat. Hist. (3), IX, 



1862, p. 315. 



Fraser, Hyd. of Vancouver Island, 1914, 

 p. 138. 



Trophosome. — Stems unbranched, serving for the pedicels of the 

 hydranths, arising from a stolon, which at this point has a distinct ele- 

 vation, somewhat bulbous in appearance ; pedicel annulated at the base 

 and below the hydrotheca and sometimes more or less throughout. 

 Hydrotheca long and narrow, tapering slightly from margin to base; 

 teeth usually 5 in number, deep and rounded at the tip. 



Gonosome. — (Not previously described.) Gonangium arising from 

 the stolon, with scarcely any pedicel ; from the base it increases in di- 

 ameter gradually toward the middle and then decreases almost imper- 

 ceptibly until it suddenly enlarges at the distal end to form a definite 

 flare, truncated, without a collar. The opening is about half of the 

 diameter of the distal end ; surface smooth. 



Distribution. — Braithwaite Bay, 16-18 fathoms; Tangola-Tangola, 

 at low tide and in 15-20 fathoms. 



? Clytia seriata, new species 

 Plate 8, Fig. 35 



Trophosome. — Colony 20 mm., usually unbranched, consisting of a 

 series of zooids — 8 in the colony described — rather than a stem, from 

 which zooids are given off at intervals. The pedical of each zooid, with 

 the exception of the basal, has its origin a short distance below the hydro- 

 theca of the zooid immediately preceding it, with a definite "knee" at 

 the base, so that the successive pedicels are not far from being in a 

 straight line; the pedicel has several annulations, proximally and dis- 

 tally. Occasionally a colony appears with a branch given off in much 

 the same way as the pedicel, and it continues in a similar way to the 



