Crustacea of St. Andrews. 267 



and in the stomach of the cod. Eyes white. Most have a 

 straw-coloured body, very prettily mottled with brownish-red 

 patches and many minute white specks ; the antennas are 

 beautifully barred with white and brown. 



Genus Atylus, Leach. 

 Atylus 8wam i merdamn ) M..-Edwa>ids' y B.& W. op. cit. i. p. 246. 



Occasionally in rock-pools at the pier, or clinging in hundreds 

 to the seaweeds in the laminarian region off the West Hocks ; 

 abundant on the beach after storms, and in the stomach of the 

 cod. Translucent and slightly yellowish, with three brownish- 

 red spots along the dorsum, and a small one above the eyes ; 

 the latter are pinkish brown ; the elongated heart pulsates 

 very evidently on the dorsum. 



Atylus bispinosus, Bate ; B. & W. op. cit. i. p. 250. 



In the delbris of the fishing-boats, under stones at the pier 

 rocks, and on the West Sands after storms. Eyes occasionally 

 reddish. Most of the body and appendages are speckled with 

 small black dots ; many have specks of a carmine hue behind 

 the eyes. 



Genus Pheeusa, Leach. 

 Pherusa bicuspis, Kroyer ; B. & W. op. cit. i. p. 253. 



In the debris of the fishing-boats, and in swarms in the 

 fine pools near high-water mark beyond the Eock and Spindle. 



Genus Calliopius (Leach), Lilljeborg. 



Calliopius Iceviusculus, Kroyer ; B. & W. op. cit. i. p. 259. 



Occasionally in pools near low water at the East Eocks. 



Calliopius Ossiani, Bate; B. & W. op. cit. i. p. 261. 

 Frequent in the fishing-boats. 



Calliopius yrandoculis, Bate ; B. & W. op. cit. i. p. 265. 



In the same locality, and not uncommon in the rock-pools. 

 Many show a decided brownish bar from the eyes along the 

 dorsal ridge ; and sometimes small reddish specks are present. 

 A. Boeck includes this form under C. Iceviusculus*. 



* 'Crustacea Amphipoda borealia et arctica/ p. 117. 



