MARINE GAMMARIDEAN AMPHIPODA 



375 



also entire and the accessory flagellum vestigial or absent. The rel- 

 atively longer peduncle of uropod 3 in oedicerotids is a reliable 

 character as is the aspect of those oedicerotids having massive heads 

 and projecting rostra; often they have pereopods adapted for bur- 

 rowing by enlarged and spinose articles and pereopod 5 is much longer 

 than pereopod 4. Since the eyes are lost in many species the taxono- 

 mist requires some experience in differentiating these families. 



Figure 136.— Oedicerotidae: a, Oediceroides apicalis K. H. Barnard (J. L. Barnard, 1961); 

 b, Aceroides latipes Sars (1895, pi. 120). Telson: c, Paroediceroides sinuata Schellenberg 

 (1931); d, Monoculodes borealis Boeck (Sars, 1895, pi. 106); e, Monoculodes tesselatus 

 Schneider (Sars, 1895, pi. 106);/, Oediceros saginatus Kr0yer (Sars, 1895, pi. 102). Uro- 

 pod 3: g, Oediceros. Coxa 4: h, Perioculodes longimanus (Bate and Westwood) (Sars, 

 1895, pi. 110). 



