1884.] Zoölogy. 199 
LIFE IN THE NAPLES AQUARIA.—H. Eisig placed in a basin 
of water an Octopus, a Gobius and a Pagurus, with an Actinian 
on its shell; the Octopus attacked the crab, which immediately 
withdrew into its shell, while the attacker instantly retreated, for 
the stinging organs of the Actinia had been too much for it. The 
same thing happened with the goby. A Pagurus without a shell 
was afterwards placed near the Octopus, and the latter examined 
it very carefully before it dared to seize it. At the same time it 
is to be observed that the Actinian gets much assistance from its 
commensal, thanks to the locomotive and olfactory powers of the 
er. 
Observations on thermal conditions showed that many fishes 
and other marine forms were but little affected by alterations in 
temperature; while a study of the modes of nesting of marine 
forms shows that much depends on what region of the sea the 
Subjects naturally inhabit, and considerable differences are to be 
tved between pelagic and more deeply dwelling fishes and 
cephalopods.— Fourn. Roy. Microscopical Society, Aug., 1883. 
New Human Cestope—Licura mansont.—Dr, S. S. Cobbold 
describes a Cestode, twelve of which were found in a Chinese, 
lying in the subperitoneal fascia, about the iliac fossæ, and behind 
the kidneys, a single one being found lying free in the right pleu- 
ral cavity, They were from 12 in. to 14 in. long, 1-8th in. broad 
and 1-64th in. thick. “The Cestode comes nearer to Ligula sim- 
plicissina, frequently found in the abdominal cavity of fresh-water 
fishes, than to any other species, and without asserting positively 
it may not be a variety of that form, the author thinks, from 
the unique character of its habitat, associated with certain differ- 
ences of form, that it may properly be regarded as the immature 
representative of a totally distinct species.—/ourn. R. Micr. Soc. 
HypRo-MepusA’ wirHoutT DicestivE OrGANS.—Dr. Lendenfeld 
describes a new sub-family of hydroids, Eucopellina, in which 
Australia.” The larva 
ĉe carried upon almost unbranched stems, which spring from 
four h It discharges its reproductive elements within twenty- 
urs 
results and those lately obtained by Kleinenberg on the same 
* 
