1896.] BRITISH HYDROIDS AND MEDUSZ. 493 
Entima insignis, Haeckel (1879); Garstang (1894); Browne 
(1895). 
A single specimen taken at Plymouth on 3rd October, 1893. 
Umbrella 7 mm. in width and 33 mm. in length. Stomach 
about 2 mm. long, situated on a peduncle 7 mm. long. Mouth 
with four large lips. Four very long perradial tentacles, about 
20 mm. in length when fully expanded, with a pair of cirri at the 
base of each. About 30 marginal bulbs, each with a pair of cirri. 
Eight adradial marginal vesicles, each with 2-5 otoliths. The 
gonads are on the lower half of the peduncle along the radial 
canals. The medusa is perfectly colourless. 
Another specimen taken at Plymouth on 7th September, 1895. 
Umbrella 8 mm. in width and 4 mm. in length. Thirty-nine 
marginal bulbs, which are not evenly distributed upon the margin 
of the umbrella ; the four quadrants of the umbrella possessing 9, 
13, 7, and 10 bulbs. The gonads are just commencing to develop 
upon the radial canals, close to the stomach. The marginal 
vesicles with 3-4 otoliths. In other details the specimen resembles 
the one described above. 
Distrrisution.—France, St. Vaast, AKeferstein. 
England—Ply mouth, Garstang; E.T.B. Isle of Man, Browne. 
SAPHENIA MIRABILIS (Wright). (Plate XVII. fig. 3.) 
Goodsirea mirabilis, Wright (1859). 
Saphenia mirabilis, Haeckel (1879);-Cunningham (1891); Bles 
(1892) ; Garstang (1894) ; Browne (1895). 
Cunningham obtained some hundreds of specimens off the 
Eddystone, at night, on 16th July, 1891. The Jargest 12 mm. in 
diameter. 
At the end of September 1893 I found two specimens at 
Plymouth having the umbrella about 6 mm. in diameter, and eight 
marginal vesicles each with three otoliths. During September 1895 
I met with a few more specimens at Plymouth. One specimen 
5 mm. in width and 5 mm. in length. Eight marginal vesicles _ 
with 1-5 otoliths, but the majority possessed 3 otoliths. Two 
long opposite, perradial tenvacles, with a pair of cirri at the base 
of each. Thirty-nine marginal bulbs, not evenly distributed 
between the radial canals ; a pair ofcirri usually present on each 
bulb. Manubrium very long. Medusa colourless. 
A very small medusa taken on 16th Sept., 1895, may possibly be 
the earliest free-swimming stage of Saphenia (Plate XVI. fig. 5 and 
fig. 5a). Umbrella bell-shaped, slightly longer than wide; about 
3 mm. in length. Manubrium about one quarter the length of 
the umbrella-cavity. 
The stomach is not on a peduncle, but has a short conical knob 
at its base extending into the mesoglea of the umbrella and 
terminating in a short apical stalk, which does not reach to the 
ex-umbrella. 
On the marcin of the umbrella, two opposite, perradial tentacles, 
with a pair of cirri at the base of each; two opposite, perradial 
