NO. 1 fraser: hydroids 31 



and entirely annulated. Hydrotheca cylindrical, the base broadening to 

 full width immediately as it leaves the pedicel, large, 0.7 mm. by 0.4 

 mm. The margin is supplied with 10 blunt but deeply cut teeth. 



Gonosome. — The gonangium is attached to the stolon by a short 

 pedicel; it is obovate, with the distal end truncate; slightly corrugated; 

 1.0 mm. by 0.4 mm. 



Distribution. — Santa Elena Bay, 8-12 fathoms; Port Utria, on coral 

 at low tide; Tangola-Tangola, on coral at low tide; east of islands off 

 Navidad Head, 25-35 fathoms; Isabel Island, 10-25 fathoms. 



Glytia inconspicua (Forbes) 



Thaumantias inconspicua Forbes^ Br. Naked-eyed Medusae, 1848, 



p. 52. 



Clytia inconspicua Fraser^ Hyd. of Vancouver Island, 1914, p. 144. 



Distribution. — Jicaron Island, 15 fathoms. 



Clytia irregularis, new species 

 Plate 8, Fig. 32 



Trophosome. — Colony, 8 mm., unbranched or slightly branched, 

 sometimes slightly fascicled toward the base; each branch similar to a 

 portion of the main stem. Hydrothecae given off irregularly, with a 

 decided "knee" on the pedicel as it leaves the stem. Pedicels vary much 

 in length; the short ones may be annulated throughout, but the longer 

 ones are partly free from annulations, there being more of them toward 

 the distal than toward the proximal end ; annulations on the main stem 

 just distal to the node. Hydrotheca approximately one third longer 

 than wide, definitely campanulate; margin with 12 deeply incised, 

 sharp teeth. 



Gonosome. — Gonangia single or in pairs, given off from the main 

 stem or branch, at the node; the base tapers to a point and it can 

 scarcely be said that there is a pedicel. There is an increase in diameter 

 until a constriction is reached just below the margin. The whole go- 

 nangium, which is smooth, may be regularly and distinctly curved ; the 

 distal end is truncated, with a small opening centrally placed. The 

 medusa-buds are somewhat longer than broad. 



Distribution. — Tangola-Tangola, on coral slightly below low tide; 

 off White Friars, in 5-10 and in 25 fathoms. 



