250 Irving: Lucernana at Scarborough. 
considerable time before it relaxes its hold upon its hoped-for 
victim. One has to consider the fact that in an adult there 
are eight grasping tufts, that each tuft bears from eighty 
to a hundred capitate tentacles, every one charged with 
nematocysts or stinging-thread cells, and that the conjoint 
use of six hundred to eight hundred stinging tentacles proves 
a formidable battery in capturing prey. A full-grown specimen 
measures one and a quarter inches in length and about one 
and a quarter inches in diameter across the expanded bell 
mouth. The interior appearance of the bell is shown in the 
diagram, Fig. 2, where the genital bands, containing numerous 
white masses of eggs, radiate from the mouth to alternate 
marginal bays. The oral cavity, said to be square-shaped, is 
not really so, but having four attachments corresponding to 
the genital bands, it produces an impression of squareness. 
This mouth is very extensile and moveable ; it can be swayed 
about freely, altered in shape, thrust outwards or withdrawn, 
according to need. As in anemones there is a mesenteric 
cavity and gastral filaments for digestive purposes. The 
peculiar hand, or claw-like shape of the eight tentacle-bearing 
processes, makes up for the lack of a circumoral musculature 
as provided in anemones, for, singly, each claw can convey 
food within, and, jointly, the turning in of eight such claws 
closes the exit, and prevents escape, till the mouth organ 
engulfs the quarry. 
All specimens of Lucernaria campanulata examined were 
charged with egg masses, and it is not unreasonable to 
suppose their advent here is connected with spawning, and 
that another opportunity of securing them may be far distant. 
Last year, for instance, the sea-hare, Aplysia punctata, occurred 
in phenomenal abundance, deposited countless egg coils, and 
disappeared. This year only one small sea-hare has been seen. 
The Lucernarians of the South Coast ( Haliclystus octoradi- 
atus) differ in many respects from Lucernaria campanulata. 
They choose the long green blades of Zostera for attachment 
instead of Halidrys siliquosa. Zostera beds are not found at 
Scarborough ; Haliclystus is conspicuous by its absence. 
0) ——— 
Eucosmia undulata is recorded for Carlisle in The Entomologist for 
April. 
The “‘ coming of age’’ of the Jvish Naturalist was celebrated by a 
Ccinner on 23rd April. 
Mr. J. W. Jackson records the remains of the Lynx from Derbyshire, 
in The Geologica: Magazine for June. 
Mr. M. W. Compton records seeing a Whinchat at Ottringham, East 
Yorks, on 3rd January, in British Birds. 
Mr. W. Denison Roebuck has presented his collection of English 
stamps to the Leeds University. It is one of particular importance! 
Naturalist, 
