172 LIVERPOOL BIOLOGICAL SOCIETY. 
water mark, in company with Coleoptera (Bembidiwm, &c.), 
near Tal-y-Cafn, on the Conway. A female was taken at 
low-water mark, Penmaen, Colwyn Bay, 13th April, 1888, 
having probably gone to sea to deposit her ova. 
*Hyale Nilsoni, Rathke, = Allorchestes Nilsson, Bate. 
One specimen in a large gathering of G. locusta from Hilbre 
Island, made by Mr. I. C. Thompson, on 15th November, 
1886. 
*Lysianassa longicorms, Lucas. Two females (I). Taken 
in the same locality last year, and wrongly referred to 
L. coste (see Report I., p. 212). 
*Tryphosa ciliata, Sars (‘‘ Oversigt af Norges Crust.,”’ 
p. 81, pl. in., fig. 4). Two specimens were obtained by 
placing a quantity of fragments of shells brought up by the 
dredge in a glass jar filled with sea water, when they 
swam out. The colour, which is milk white, is very pro- 
tective among broken shells. Sars says that this species 
may be distinguished from 7. nana, Kr., by its more 
compact form, by the strongly projecting lateral lobes of 
the head, and by having the fourth segment of the pleon 
depressed (Pl. XIII., figs. 1—4). 
*Harpinia plumosa, Kroyer, = Phoxus plumosus. Three 
specimens (II and ITI). 
*Pontocrates Norwegicus, Boeck, — Kroyera arenaria, 
Bate. One specimen in a tidal pool at Penmaenrhos, 
Colwyn Bay. Flagellum of lower antenne in this case 
longer than the animal. Colour hyaline. Eyes bright red 
under a network of pure white. 
*Urothoe elegans, Bate. A specimen taken by Mr. I. C. 
Thompson in the tow-net off Puffin Island, at night, 
October, 1887. The pink colour was well preserved in 
Dean’s solution. 
Pleustes bicuspis, Kroyer, and Calliopius bidentotus, 
