GAMMARUS MACULATUS. 
399 
AMPHIPODA. 
NAT ATOM A. 
GA MM A RIDES. 
GAMMARUS MACULATUS.* 
Johnston, Zool. Journ. iii. p. 176. 
ct Body six lines long, smooth, glossy; back dusky, 
with a faint yellow band across each segment, and a row 
of yellow spots along each side, most conspicuous on the 
posterior half of the body; sides lighter coloured, faintly 
marked with yellow. Antennae transparent, unspotted, 
ciliated, with long hairs ; superior longest; basilar joint 
shorter than the second or third. The seta [secondary 
appendage] is one-half the length of the last joint 
[flagellum] . Eyes large, oblong, running backwards, 
and having the appearance rather of a blotch of fine red 
colour than of eyes. Arms alike, with oval dilated 
monodactyle hands, hairy, particularly on their inner 
margin. Legs white, monodactyle, armed with bristles. 
“ Hab. Sea-coast near Berwick ; rare. 
“ The specimen from which the above description was 
taken was found among corallines, dredged from deep 
water. It belongs to Leach’s restricted genus Gammarus , 
of which he has described four species, viz. G. aquaticus 
[ pulex] , locusta, marinus, and campy lops.” 
* Not Gammarus maculatus of Liljeborg. 
