250. LIVERPOOL BIOLOGICAL SOCIETY. 
This species has occurred in two localities in the district. 
The single specimen from Red Wharf Bay (an ovigerous 
female) agreed with Sars’ figure in having no dorsal teeth 
on the first three pleon segments as shown by Hoek, 
Those from Colwyn Bay, on the other hand, agreed with 
Hoek’s figure in this respect. Both differed from Hoek’s 
figure and agreed with Metzger’s description and Sars’ 
figure in having the hinder angle of the first three pleon 
segments produced backwards as a small tooth. The Red 
Wharf Bay specimen measured 6 mm.; an ovigerous 
female from Colwyn Bay 5 mm. None of my specimens 
have the remarkable first pereeopod hairy, as shown in 
Hoek’s figure. Mr. Stebbing, on the faith of Sars’ descrip- 
tion, has suggested that this species ought probably to be 
referred to the genus Triteta,* but the presence of a mandi- 
bular palp seems to preclude this. Its general aspect also 
is much more that of an Atylus than a Triteta. 
15. Lilljeborgia pallida, Bate. 
According to Bate and Westwood the third uropods 
‘‘have the branches much shorter than the peduncle,” 
while Boeck says they are ‘‘ paulo longiores.”” My speci- 
men agrees with Boeck. 
16. Sunamphithoe gammaroides, Bate. 
Amphithoe gammaroides, Bate and Westwood (Brit. Sess. Crust., p. 427). 
Sunamphithoe gammaroides, Stebbing (Ann. and Mag. N.H., 4th ser., 
vol. xiv., p. 114, pl. 11 and 12). 
This would appear to be a rare species. Itis not in Dr. 
Norman’s catalogue. 
17. Podocerus isopus, Walker. (Pl. XVI. fig. 7.) 
I have this year for the first time met with the adult 
male of this species. The second gnathopod is much 
larger in proportion to the first than in the immature male 
and female. The palm, however, is distinctly convex, and 
+ “Challenger” Report on Amphipoda, p, 941, 
