LIST OF THE AMPHIPODA. 213 



May 24th, 1885 ; F., W., [S.] The characters of the antennae 

 in this species are not reliable for specific distinction, the 

 flagellum varying in length, and the accessory appendage in 

 the number of joints. 



" One of the specimens from Puffin Island has the flagellum 

 of the lower antenna about four times as long as the peduncle, 

 while in the other they are about the same length as the 

 peduncle. In both, the secondary appendage is four to five- 

 jointed, instead of two-jointed, as stated by Spence-Bate 

 {Brit, Sess. Crust., vol. i), and by Boeck." W. 



Lysianassa longicornis, Lucas. 

 Off Puffin Island, fifteen fathoms ; F., W., [S.] " Probably 

 only a male of the last species " ; W. 



Orchomene minutus, Kroyer. 

 Colwyn Bay ; one specimen, found in a tidal pool. W., [S.] 



Sub-family — Phoxides. 

 Iphimedia obesa, Rathke. 

 Port Erin, Isle of Man, August, one specimen. F. 



Sulcator arenarius, Sp. Bate. 

 Llanfairfechan. W., [S.] 



Urothoe marinus, Sp. Bate. 

 Llanfairfechan. W., [S.] 



Sub-family.— Gammartdes. 

 Amathilla sabiniy Leach. 



Common at times, in tidal pools, at Rhos Bay. W. 

 Aora gracilis^ Sp. Bate. 

 Point of Ayr, Rhyl, Puffin Island, fifteen fathoms ; Car- 

 narvon Bay, five to ten fathoms. W., F. 



Atylus swammerdamiiy M.-Edw. 

 Very common in and below the Laminarian zone ; 

 common off Bagillt, July 25, 1876, W. ; Hilbre Swash, 

 eighteen specimens. May 9th ; Penmaenmawr, one specimen, 



