THE CRUSTACEA OF LIVERPOOL BAY. 175 
have the lower hinder angle of the merus joint prolonged 
downwards nearly half the length of the carpus. The spine 
on the first segment of the pleon is much shorter than that 
on the second, and is sometimes almost obsolete (Pl. XIII., 
figs. 5—9). 
Dexanine spinosa, Mont. A very large specimen, 
approaching in size examples from the Arctic Sea, was 
taken in a tidal pool at Rhos Bay, 18th June, 1886. 
Atylus Schwammerdamu, M. Edwards. A specimen 
taken at (1) differed from the common shallow water form 
in being larger, freckled with brown, and having brilliantly 
white eyes. 
Halirages (Atylus) bispinosus, Bate. A few imperfect 
specimens in a gathering dredged by Mr. R. D. Darbishire, 
off Fleetwood, in 7 fathoms, October, 1886. The bulk of 
the gathering consisted of Gammarus locustu and Atylus 
Schwammerdamit. 
Calliope leviuscula, Kr. Specimens collected by Mr. 
I. C. Thompson at Penmaenmawr are darker in colour than 
those from Colwyn Bay. 
Pherusa fucicola, Bate. I have some doubt whether the 
species recorded under this name in the first Report be not 
the young of C. leviuscula. 
Gammarus marinus, Leach. <A few female specimens at 
low water, Penmaenrhos, 23rd April. 
*Mera longimana, Leach. One female (I). 
*Cherrocratus Sundevalli = Lilljeborgia Shetlandica, 
Bate. (I). Colour, when alive, white mottled with bright 
red, the spots densest on the top of the head. There is a 
double tooth at the lower distal angle of the second joint 
of the peduncle of the lower antenne. Another, male 
specimen, taken in the ‘‘muzzled’’ dredge in 3 fathoms, 
Colwyn Bay, 24th May, 1887. 
Amathilla Sabini, Leach. “Two specimens of the large 
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