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U.S. NATIONAL MUSEUM BULLETIN 2 92 



nearly straight hairy granulate ridge accentuated posteriorly by deep 

 groove, mesial end of ridge not reaching anterolateral angle of mouth 

 area. Third maxillipeds with oblique hairy ridge on merus, gaping 

 widely, exposing mandibles. Chelipeds subequal, carpus not produced, 



-<3 





Figure 62. — Denuded terminal portions of male right first pleopods: a, Sesarma (Holo- 

 metopus) americanum, syntype from Saint Thomas, posterior view; b, same, lateral view; 

 c, same, anterior view; d, paratype of S. (//.) tampicense from Tampico, Mexico (E. 

 Palmer), posterior view; e, same, lateral view; /, same, anterior view; g, S. {H.) miersii, 

 specimen shown in figure 59, posterior view; h, same, lateral view; i, same, anterior view; 

 j, S. (H.) rectum (carapace length 20.6 mm) from Trinidad (Albatross), posterior view; 

 k, S. (//.) ricordi (cl 15.9 mm) from Bahia Honda, Cuba {Tomas Barrera), 

 posterior view; /, S. {H.) roberti, specimen shown in figure 60, posterior view; m, same, 

 lateral view; n, same, anterior view; o, Sesarma (Sesarma) bidentatum (cl 23.6 mm) from 

 near Troy, Jamaica (\V. Harris), posterior view; p, S. (S.) curacaoense, specimen shown in 

 figure 61, posterior view; q, S. (S.) jarvisi (cl 9.7 mm) from Jamaica (C. R. Orcutt), 

 posterior view; r, Plagusia depressa (cl 30.9 mm) from Dominica station 113, posterior 

 view; s, same, lateral view; /, same, anterior view. 



