GAMMARUS MACULATUS. 399 



A MPHIPODA . OAMMARIDES. 



NATATOKIA. 



GAMMARUS MACULATUS.* 



JOHNSTON, Zool. Journ. iii. p. 176. 



"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 9 

 of which he has described four species, viz. G. aquations 

 [pulex], locusta, marinus, and campy lops." 



* Not Gfammarus maculatus of Liljeborg. 



