250 LIVEEPOOL BIOLOGICAL SOCIETY. 



This species has occurred in two locahties in the district. 

 The single specimen from Ked 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 peraeopod hairy, as showfi 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 Tritceta* but the presence of a mandi- 

 bular palp seems to preclude this. Its general aspect also 

 is much more that of an Atijlus than a Tritceta. 



15. Lilljehorgia 2^ciliida, 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. Sunamphkhoe gaimnaroides, Bate. 



Amphithoe gammaroides, Bate and "Westwood (Brit. Sess. Crust., p. 427). 

 SunamphitJine gammaroides, Stebbing (Ann. and Mag. N.H., 4th ser., 

 vol. xiv,, p. 114, pi. 11 and 12). 



This would appear to be a rare species. It is 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 Aniphipoda, p. 941. 



