142 CRUSTACEANS OF THE 



Subgenus Perithelphusa de M. 



1. borneense Marts. 1808 Borneo. 



» » var. hilarisde M. 1899. West-Borneo. 



2. Büttikoferi de M. 1899 West-Borneo. 



3. silvicola de M. 1899 West-Borneo. 



4. sp. de M. 1899 West-Borneo. 



Subgenus Parathelphusa H. M. E. 



1. Braz-ae A. M. E. 1886 Congo. 



2. brevicarinata Hilgd. 1882 Isle of Salanga. 



3. Campi Rathbun 1894 Stanley Pool, Congo, 



4. Chaperi A. M. E. 1887 Assinie. 



5. Chavanesi A. M. E. 1886 .... Franceville. 



6. convexa de H. (inedit.) Java. 



7. crenulifera W.-Mas. 1876 Pegu Yomah, Burma. 



8. dayana W.-Mas. 1871 Burma. 



9. Edwardsi W.-Mas. 1876 India. 



10. Feae de M. 1898 Burma. 



11. maculata de M. 1879 Sumatra. 



12. Martensi W.-Mas. 1876 India. 



13. nilotica H. M. E. 1837 Nile. 



44. Poecilei A. M. E. 1886 Alima Lateké, Congo. 



15. salangensis Ortm. 1893 = brevicari- 

 nata Hilgd. 1882 Isle of Salanga. 



16. sinensis H. M. E. 1853 China. 



17. spinigera (White) W.-Mas. 1871 . . Calcutta. 



18. tridens Fabr. 1798 East-Indies. 



19. tridentata H. M. E. 1853 .... Indian Archipelago. 



EXPLANATION OP THE PLATES. 



Plate 5. 



Fig. 2. Menippe Ortmanni n. sp., female, x 2; 2a dorsal view of 

 the anterior part of the carapace, x 4; 2(5i autenual region and orbit of 

 the left side from before, x 4; 2c outer maxillipede, x 4;; 2c? larger 

 chela, x 2. 



Fig. 3. Potamon {Parathelphusa) tridentatum H. M. E., the three ter- 

 minal segments of the largest male from Mount Kenepai, X 2. 



Fig. 4. Potamon {Perithelphusa) borneense v. Mart. var. hilaris n., 

 adult male, x .^ ; ^a cephalic region of this specimen from before, 



Notes from, the X^eyden. ]Vluseuca, Vol. JXLX.I. 



