XVI PROCEEDINGS OP THE NATIONAL MUSEUM VOL. 77 



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3. Onisimus normani. a, End of gnathopod 1, enlarged ; &, end of 



gnathopod 2, enlarged; o, maxilla 1; d, maxilla 2; e, inner and 

 outer plates of maxilliped, enlarged, showing teeth and spines; 

 f, head and epistome 8 



4. Onisimus plautus. a, Entire animal, male; 6, head and epistome; 



c, right mandible; d, cutting edge of right mandible, enlarged; 

 e, maxilla 1 ; f, maxilla 2 ; ff, maxillipeds ; h, lower lip ; i, gnatho- 

 pod 1 ; ;, gnathopod 2 ; fc, peraeopod 2 ; I, peraeopod 3 ; m, peraeo- 

 pod 4 ; n, peraeopod 5 ; o, uropod 3 ; p-q, telson tK 



5. Onisimus plautus. a, Head; b, maxilla 1, enlarged, showing end of 



outer plate and palp ; c, palp of maxilla 1 ; d, inner and outer plates 

 of maxilliped, enlarged ; e, end of gnathopod 1, enlarged ; /, end of 

 gnathopod 2, enlarged ; g, end of peraeopod 2, enlarged 10 



6. Orchoniene depressa. a, Entire animal, female; 6, epistome and 



upper lip; c, right mandible; d, maxillipeds; e, peraeopod 2; f, 

 peraeopod 3 ; g, peraeopod 4 ; h, peraeopod 5 11 



7. Orchomene depressa. a, End of outer plate of maxilla 1, enlarged; 



6, gnathopod 1; c, end of gnathopod 1, enlarged; d, gnathopod 2; 



e, end of gnathopod 2, enlarged; f, uropod 3; g, telson 12 



8. Orchomene macroserrata. a, Front half of animal, female ; 6, maxilla 



1 ; c, maxilla 2 ; d, maxilliped ; e, peraeopod 5 ; f, pleon segments 

 1-6, telson, and uropods ; g, pleon segment 3, enlarged ; h, uropod 3 ; 

 i, male, telson 14 



9. Orchomene macroserrata. a, Head and epistome; 6, right mandible; 



c, lower lip ; d, end of gnathopod 1, enlarged ; e, end of gnathopod 



2, enlarged 15 



10. Paratryphosites ahyssi. Entire animal, male 18 



