180 LIVERPOOL BIOLOGICAL SOCIETY. 
*Pagurus levis, Thompson. One specimen, from Douglas, 
1886. 
Porcellana platycheles, Penn. Abundant in spring, 1886, 
at Penmaenrhos. Mr. H. C. Chadwick, in lit., says, ‘‘Up 
to the summer of 1877 this species was well represented at 
extreme low water mark at Beaumaris. Since that time, 
however, I have not seen one.” (See Report I.) 
BRACHYURA. 
Ebalia tuberosa, Penn, = E. Pennantw, Leach. (II). 
Two males. 
Ebalia tumefacta, Mont., = EH. Bryerw, Leach. (I). 
Several specimens. 
*Portunus holsatus, Fabr. Two specimens, dredged by 
Mr. H.C. Chadwick, in 10 fathoms, near Garth Ferry, 
Menai Straits, 1887. 
Portumnus latipes, Penn. Not uncommon on the shore 
at Colwyn Bay, in July, 1887. It makes a complicated 
track on the sand, at one end of which is a small depressed 
mound, under which the crab is found about 3 or 4 inches 
below the surface. The broad last joint in the hind legs of 
this species seem to be used for burrowing rather than 
swimming. One kept for some weeks in an aquarium never 
attempted to swim. 
Pilumnus hirtellus, Leach. One specimen, dredged off 
Penmon, Auglesey (Chadwick). 
*Xantho rivulosa, M. Edwards. One specimen, taken 
at extreme low water mark at Beaumaris, July, 1878, by 
Mr. Chadwick, who writes, ‘‘It was almost buried in 
gravelly mud. I have since searched diligently for it many 
times without success.”’ 
Eurynome aspera, Penn. (Il). Two specimens. 
Inachus Dorsettensis, Leach. (II). Two specimens, 
