82 ON A NEW HYDROID ZOOPHYTE. 
direction. Itis a charming sight to see some dozens of these 
delicate little germs, in the limited space of an aquarium, all life 
and activity, darting hither and thither, sometimes gently 
dropping towards the bottom of the tank, in consequence of the 
arrest of the pulsating movement, and then rising again with an 
ease and elegance truly wonderful. 
When free and apparently fully developed, this medusoid pre- 
sents the following characters :— 
Umbrella nearly globular, distal end turning over into a lip 
towards the marginal canal; proximal end continued into a short 
conical apex, into which the sub-umbrella is produced. Peduncle 
stout, nearly equal in length to diameter of sub-umbrella; mouth 
indistinct, possibly a simple orifice. Marginal glands four, one 
much larger than the others, which gives origin to a tentacle, 
composed of a moderately stout filament terminated by a globular 
bulb nearly equal in size to the gland producing it; between the 
terminal bulb and marginal gland are seven smaller bulbs, all 
showing a granulated character. 
Orifice contracting so as to form a truncated cone, the apex 
being half the diameter of the base. Colour of medusoid, pale 
yellowish brown, of eye spots, bright carmine. 
EXPLANATION OF FIGURES 1-9.- (PLATE IL) 
Fig. 1 Corymorpha nutans. 
2,3 Early stages of medusoid. 
4,5 Further do. do. 
sy Wy oer ley do. do. 
5 2 Fully formed, free medusoid. 
XIT.—On a New Hydroid Zoophyte (Podocoryne Alder). 
By Georce Hopes. 
I wut with this new Zoophyte during the present year, and ven- 
ture to offer the following description of it :-— 
Polype elongate, extensile, tapering towards the base, 
and surmounted by a conical, sometimes, obtusely rounded 
