MARINE GAMMARIDEAN AMPHIPODA 



417 



Heterophoxus Shoemaker 



Heterophoxus Shoemaker, 1925. 



Type-species: Harpinia oculata Holmes, 1908 (monotypy and 

 subsequent synonymy). 



Mandibular molar a spinulose nontriturative protuberance; palp 

 of maxilla 1 biarticulate ; maxillipedal palp article 3 not produced, 

 article 4 short, with a stout apical spine and setae; article 2 of pereo- 

 pod 3 slender, scarcely wider than article 3; eyes present or absent; 

 antenna 2 with basal ensiform process (Proharpinia) . Species: 4, E. 

 Pacific, S. Africa, antarctic, littoral to deep bathyal. 



Figure 150. — Phoxocephalidae : Antenna 2: a, Heterophoxus oculatus (Holmes) (J. L 

 Barnard, 1960); b, Phoxocephalus holbolli (Kr^yer) (Sars, 1895, pi. 49). Antenna 1: 

 c, Phoxocephalus. Upper lip: d, Phoxocephalus. Mandibles and palps: e, Phoxocephalus; 

 f, Leptophoxus falcatus Sars (1895, pi. 50); g, Mandibulophoxus uncirostratus (Giles) 

 (J. L. Barnard, 1957a). Lower lip: h, Phoxocephalus. Maxilla 1: i, Phoxocephalus; 

 j, Harpinia plumosa (Kr0yer) (Sars, 1895, pi. 52). Maxilla 2: k, Phoxocephalus. Maxil- 

 lipeds: /, Leptophoxus; m, Microphoxus minimus J. L. Barnard (1960); n, Phoxocephalus. 

 Gnathopod 1: o, Joubinella sirelkovi Gurjanova (1952); p, Phoxocephalus. 



