AMPITHOIDAE FROM SOUTHERN CALIFORNIA — BARNARD 3 



12. Article 4 of antenna 2 shorter than article 5 . species of southern California 

 Article 4 of antenna 2 as long as or longer than article 5 . tea, new species 



13. Pereopod 5: article 5 twice as broad as article 6, subequal to 6 in 



length eoa 



Pereopod 5: article 5 not broader but much shorter than article 6 . . . mea 



14. Male gnathopod 2 with tooth defining palm 15 



Male gnathopod 2 lacking palmar defining tooth 18 



15. Palm of gnathopod 2 transverse, bearing bilobed tubercle in middle 



of palm mitsukurii (see also valida) 



Palm of gnathopod 2 oblique, or with long hind tooth 16 



16. Distal lobules of lower lip equal in size pollex and volki 



Lateral distal lobules of lower lip much longer than medial lobules ... 17 



17. Article 6 of male gnathopod 2 not produced anterodistally. 



simulans ( = dalli), kussakini 

 Article 6 of male gnathopod 2 produced into a setose lobe anterodistally 



ramondi 



18. Male antenna 2 with dense tufts of setae 19 



Male antenna 2 lacking dense tufts of setae 23 



19. Male gnathopod 2: hind margin of article 6 and palm equal in length . . 20 

 Male gnathopod 2: hind margin of article 6 much longer than palm . . 21 



20. Article 5 of gnathopod 1 shorter than article 6 alluaudi 



Article 5 of gnathopod 1 much longer than article 6. 



brasiliensis (of Oliveira 1953) 



21. Dense setal tufts of antenna 2 confined to article 5 of peduncle and 



flagellum plumulosa 



Dense setal tufts of antenna 2 borne on articles 4-5 of peduncle and flagel- 

 lum 22 



22. Finger of gnathopod 1 matching palm brasiliensis and africana 



Finger of gnathopod 1 overlapping palm zachsi 



23. Palm of male gnathopod 2 with a process (not defining) 24 



Palm of male gnathopod 2 lacking a process 26 



24. Palm of male gnathopod 2 transverse valida (see also mitsukurii) 



Palm of male gnathopod 2 oblique 25 



25. Palm of male gnathopod 2 equal to hind margin of article 6 . . . grubiformis 

 Palm of male gnathopod 2 much shorter than hind margin of article 6. 



senegalensis 



26. Palm of male gnathopod 1 moderately excavate (fig. le) 27 



Palm of male gnathopod 1 not excavate 30 



27. Hind lobe of article 5 on gnathopod 1 truncated 29 



Hind lobe of article 5 on gnathopod 1 rounded 28 



28. Male gnathopod 2: article 6 half as wide as long, flagellum of antenna 



1 twice as long as flagellum of antenna 2 rubricata 



Male gnathopod 2: article 6 three-fourths as wide as long, flagellum of 



antennae 1-2 subequal in length rubricatoides 



29. Article 5 of gnathopod 1 nearly as long as article 6 . . djankonovi (in part) 

 Article 5 of gnathopod 1 half as long as article 6 marcuzzii 



30. Palm of male gnathopod 2 transverse japonica (in part) 



Palm of male gnathopod obhque 31 



31. Distal lobules of lower lip equal in size (fig. 11) japonica (in part) 



Distolateral lobules of lower lip much larger than medial lobules (fig. Ij) . 32 



