206 BUNTING. PViou. Xx. 
Krohn, in 1851, describes this hydroid, and while he never 
finds any budding in the medusa, while attached to the repro- 
ductive hydroid, yet he finds adult medusae in the open sea, 
bearing a strong resemblance to the Podocoryne, and yet these 
bearing buds. The Dysmorphosa Carnea of Haeckel, seems 
to be similar to the Podocoryne obtained at Naushon and 
Wood’s Holl, except the frequent occurrence of buds upon 
the four interradial surfaces of the manubrium. This is a 
condition that I never observed, although having examined 
several hundred medusae ; but these had come directly from 
the hydroid, instead of being found in the open sea. By 
skimming, very few were obtained, but those few had no buds, 
and resembled in all details those directly set free from the 
hydroid. The Podocoryne described by Grobben differs, in 
that, the medusa found at Naushon has but four marginal 
tentacles ; the question arises, were the small interradial ones 
overlooked by him, or was the medusa seen by him different 
from that described by Sars, Krohn and Haeckel ? 
The bell of the free swimming medusa found at Naushon 
and Wood’s Holl, Pl. III, Fig. 21, was in height 0.5 mm. to 
0.6 mm., the umbrellar margin from 0.2 mm. to 0.4 mm., the 
manubrium from 0.2 mm. to 0.3 mm. in length, although this 
latter varies, since it is so very extensible, at times, reaching 
even beyond the umbrellar margin. The tentacles are eight in 
number, four long perradial, and four short interradial. At 
the base of the tentacles are to be seen ocelli containing orange 
or reddish brown pigment, this is more marked at the perradial 
than at the interradial tentacles. 
The shape of the bell varies, at times the aboral margin 
being much flattened, while at others it is rounded or convex. 
The umbrella is transparent and beset with numerous light 
points, which prove to be nematocysts. The manubrium con- 
tains a pigment resembling that of the ocelli; it is bounded by 
four mouth lobes, each containing bunches of nematocysts. 
At the four corners of the manubrium are situated the sexual 
organs. These are well developed, and appear quite mature, 
when the medusa is set free from the blastostyle. 
The life history of Podocoryne was described in a preliminary 
