X A I; HAT [YE OF THE CRUISE. 
899 
with a single exception, none were obtained beyond a depth of 30 fathoms. The excep- 
tion referred to is a species of Porcellana, apparently very closely allied to the common 
European Porcellana plcitychdes, Pennant, from Station 24 (390 fathoms). Numerous 
specimens of Polyonyx obesulus, Miers, were taken in the interior of a Sponge ( Hippo - 
spongia anomala, Polejaeff), at Station 186 (8 fathoms), and the same species appears 
also to have occurred in a free condition at this Station. 
“ The Paguridea are well represented in the collection, and a number of new species 
are present, especially from deep water. As indicating one feature of this group, it 
Fig. |p9 . — Tylaspis anomala, n. geu. et sp. ; twice natural size. South Pacific Ocean, -2375 1'athouis. 
may be stated that Pagurids were taken at twelve Stations, where the depth registered 
was over 1000 fathoms, and two species occurred at depths beyond 2000 fathoms. The 
majority of these deep-water species are characterised by long and slender limbs, but the 
eyes — organs in the higher Crustacea perhaps most subject to variation at great depths- — 
appear to have undergone very slight modification. It is also to be noted that, almost 
without exception, the species taken at great depths inhabit shells to which one or more 
Actiniae are attached. Some of the shells bore on them the well known colonial 
Epizocmthus parasiticus, which had as usual removed all their calcareous matter. Some 
