ABYSMAL FAUNA. 263 
and Antarctic species even when they are denizens of shallow water. 
“Spininess,” in fact, seerns to be due to the temperature of the water, 
rather than to the bathymetric distribution. The antenne are often 
of enormous length—e.g. Munnopsis australis—and may, to some 
extent, compensate for the loss of eyes. 
The following Isopods were taken in the Antarctic seas :—(i.) 
Lolanthe acanthonotus, Bedd., dredged at station 153. This species 
is represented by a single female specimen that was made the type 
of a new genus, of which it is the only species. Compared with its 
nearest allies, it is an extremely long form, and is notable for the 
immense length of the spiniform, lateral prolongations of its thoracic 
segments. yes are totally absent. It and the next following 
species belong to the family Asszzmx. (ii.) Ischnosoma bacillus, 
Bedd., founded on a fragment, and of the general shape of a Bacillus, 
or stick-insect. It was taken at station 158 at 1800 fathoms, bottom 
Globigerina ooze. The next six species belong to the family 
Mowworsipz. (iii.) Munnopsis australis, Bedd., taken at station 147 
and nowhere else. This species again was founded on a single speci- 
men. It was dredged from 1600 fathoms near the Crozet Islands. 
The body measures some 8 mm. in length, but the antenne attain the 
enormous length of 36 mm. The body has a very extraordinary 
outline. Eyes apparently are absent. (iv.) Hurycope sarsit, Bedd. 
Two specimens were taken at station 146 at 1375 fathoms, and three 
specimens at station 147 at 1600 fathoms. In all five the limbs 
were unfortunately broken off. This species possesses peculiar 
sensory (?) organs on the edge of the maxillipede. (wv). £. fragilis, 
Bedd. Numerous specimens were taken at four stations, of which 
the largest was taken at station 152 at 1260 fathoms. Other smaller 
specimens were dredged at stations 147 and 152, and again in the 
Pacific, off the coast of Japan. The species has thus a wider distri- 
bution than any other member of the genus, except (vi.) #. atlantiea, 
a fragment of which is somewhat doubtful, said to have been dredged 
at station 147. This fragment also confirms the view that as we 
approach the South Pole, the size tends to increase. (vii.) #. spinosa, 
Bedd., taken at station 157, and nowhere else, was founded on a 
fragmentary specimen. It was dredged from a depth of 1950 
fathoms, and seems to be a very remarkable form. (vili.) Acanthocope 
spinicauda, Bedd., taken at station 158 at 1800 fathoms. Only one 
specimen, a male, was dredged. The species is characterised by a 
long spiniform telson, half as long as the rest of the body. Appa- 
rently, during life, it was transparent, as are many members of tluis 
family. 
