MARINE GAMMARIDEAN AMPHIPODA 415 



7. Article 3 of maxillipedal palp produced (fig. 150Z) 8 



Article 3 of maxillipedal palp unproduced (fig. 150?i) 9 



8. Molar of mandible triturative, large (fig. 150e) Leptophoxoides 



Molar of mandible nontriturative, small (fig. 150/) Leptophoxus 



9. Molar of mandible triturative (fig. 150e) Phoxocephalus 



Molar of mandible nontriturative, smooth (or spiny) (fig. 150/) . Metaphoxus 



10. Eyes absent 11 



Eyes present 13 



11. Antenna 2 with basal ensiform process (fig. 150a) 12 



Antenna 2 lacking basal ensiform process (fig. 1506) Harpiniopsis 



12. Rami of uropod 2 with apical spines (fig. 151/) Pseudharpinia 



Rami of uropod 2 lacking apical spines (fig. 151e) Harpinia 



13. Antenna 2 with basal ensiform process (fig. 150a) Heterophoxus 



Antenna 2 lacking basal ensiform process (fig. 1506) 14 ' 



14. Dactyl of maxillipedal palp composed of long curved claw bearing short 



nail-like spine Mandibulophoxus 



Dactyl of maxillipedal palp composed of short curved or straight body 

 bearing elongate, curved, claw-like spine Proharpinia 



' And see Phoxocephalus coxalis K. H. Barnard (1932) to be relegated to a new genus. 



Genera of Phoxocephalidae 



Harpinia Boeck 



Harpina Boeck, 1871 (homonym, Coleoptera). 

 Harpinia Boeck, 1876 (new name). — Stebbing, 1906. 



Type-species: Phoxus plumosus K.r0yer, 1842 (selected by Boeck, 

 1876). SeeSars, 1895. 



Antenna 2 with basal ensiform process, male antenna 2 short (Harpin- 

 iopsis); mandibular molar a small, occasionally Aveakly spinose, 

 nontriturative protuberance; palp of maxilla 1 biarticulate; maxilli- 

 pedal palp article 3 not produced, article 4 short, with one or a few 

 apical spines or setae; article 2 of pereopod 3 slender, scarcely wider 

 than article 3; eyes absent; rami of uropod 2 lacking distal spines 

 or setae {Pseudharpinia). Species: about 21, N. Atlantic, ? N. 

 Pacific, cold-water, primarily deep sublittoral and bathyal. 



Harpiniopsis Stephensen 



Harpiniopsis Stephensen, 1925a. 



Type-species: H. similis Stephensen, 1925a (monotypy). 



Antenna 2 lacking basal ensiform process, male antenna 2 as long 

 as body (Harpinia, Pseudharpinia); mandibular molar a small, 

 occasionally weakly spinose, nontriturative protuberance; palp of 

 maxilla 1 biarticulate (often obscurely) ; maxillipedal palp article 3 

 not produced, article 4 short, mth one or a few apical spines or setae; 



