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U.S. NATIONAL MUSEUM BULLETIN 271 



The Ischyroceridae also have short rami but the peduncle is more 

 elongate, the rami are superficially lanceolate and poorly setose, and 

 the outer is armed with denticles, not large hooks (except Jassa). 



The genus Amphitholina Ruffo was transferred to Eophliantidae by 

 Gurjanova (1938) ; it bridges these two families in its intersimilar third 



Figure 6L— Ampithoidae: a, Ampithoe ruhricata (Montagu) (Sars, 1895, pi. 206). Upper 

 lip: b, Ampithoe. Mandible: c, Ampithoe; d, Sunamphitoe pelagica (Milne Edwards) 

 (Sars, 1895, pi. 208, as S. conformata) . Lower lip: e, Ampithoe; f, Pleonexes gammaroides 

 (Bate) (Sars, 1895, pi. 207). Maxillae 1-2, Maxilliped: gXh Ampithoe. Gnathopod 

 1: y, Ampithoe; k, Macropisthopus stebbingi K. H. Barnard (1916). Gnathopod 2: /, 

 Ampithoe. Pereopod 5 : m, Ampithoe; n, Pleonexes. Uropod 3 : o, Ampithoe. Telson : 

 p, Ampithoe; q, Pleonexes. 



