EXPLANATION OF PLATES 



Plate III and plate II, fig. 1, are from photographs loaned by 

 the U. S. National ^Museum. The other photographs on plate II 

 were made by Mr. Clarence R. Shoemaker and retouched by Mr. 

 Seward H. Rathbun who made the drawings on plate I. 



Plate I 

 PiUn)ntus harlxidciisis, 9 , Bar])ados 

 Fig. 1. Major chela, X 8. 



2. Minor chela, X 9A. 



3. An ambulatory leg, X 8- 



Jr. Carapace, with eyen and antennae, X "i- 



Plate II 



Fig. 1. Lissa hicariitata, $ , Cat. No. 24120, U. S. X. M., dorsal 

 view, carapace 9.6 mm. long. 



2. X(nitJiias fjrainiJinuiinis, 9 , Cat. No. 20052, V. S. N. ^I., 

 ventral view, X 3. Carapace 9.2 mm. wide. 



3. Same, dorsal view, X 3. 



4. Herhstia depressa, 9 , Barbados, X 2 2-3. 



5. Microphrys inicvvupius, 5, Fort Barclay, X 3. Cara- 

 pace, including horns, 16.7 mm. long. 



Plate III 



Mithrax carihlacus, 6 holotype, Cat. No. 50363, U. S. N. i\r., 

 dorsal view, carapace, including horns, 66.3 mm. long. 



