1894.] NATURAL SCIENCES OF PHILADELPHIA. 405 



13. Caridina fossarum Heller, 1862. 



Heller. Sitzb. Acad. Wiss., Wien, 45, 1, 1862, p. 411. 



De Man, in : Weber, Zool. Ergebn., etc., II, 1892, p. 397. 



Geographical distribution: Persia: Schiraz (Heller). 



14. Caridiua serratirostris de Man, 1892. 



De Man, in : Weber, Zool. Ergebn., etc., II, 1892, p. 382, pi. 23, fig. 28. 



Geographical distribution: Flores; Saleyer; Celebes (De Man). 



15. Caridina wycki (Hickson), 1888. 



Aiya ziivcki Hickson, Annal. Mag. Nat, Hist. (6), II, 1888, p. 357, pi. 13, 14 

 Caridina uycki (Hicks.) Thallwitz, Abhandl. Mus. Dresden, 3, 1891, p. 27. 

 Caridina wycki (Hicks.) de Man, in: Weber, Zool. Ergebn., etc., II, 1892, p. 



386, pi. 24, fig. 29-29k. 

 Caridina zrirX-/ (Hicks.) de :Man. Not. Leyden ]\Ius., 15, 1893, p. 302, pi. 8, fig. 7. 

 Caridina wycki (Hicks.) Ortmann, Jenaisclie Denkschr., VIII, 1894, p. 9. 



Geographical distribution: From East- Africa to eastern Australia. 

 — East- Africa: Dar-es-Salaam (Ortmann); Ceylon (Ortmann); 

 Celebes (Hickson, Thallwitz, de Man); Saleyer (de Man); Flores 

 (de Man) ; Timor (de Man); Queensland : Burnett (Ortmann). 



16. Caridina nilotica (Eoux), 1833.io 



Pelias niloticus Eoux, Annal. Sei. Nat., t. 28, 1833, p. 73, pi. 7, fig. 1. 

 Caridina /ow^/roi-Zr/i-- Milne-Edwards, Hist. Nat. C'ru.st., II, 1837, p. 363. 

 Caridina longirostris Lucas, Explor. Alger. Anini. Artie, 1849, p. 40, pi. 4, 



fig. 1. 

 Cariditia longirostris Heller, Sitzb. Acad. Wiss., Wien, 45, 1, 1862, p. 412. 

 Caridina longirostris de Man, in: Weber, Zool. Ergebn., etc., II, 1892, p. 396, 



pi. 24, fig. 291, 29m, 29mm. 

 Caridina longirostris Sbarp, Proceed. Acad. Nat. Sci., Philadelphia, 1893, p. 



111. 



Geographical distribution : Northern Africa. — Nile (Roux); Algiers 

 (Lucas, Sharp) ; River Macta, near Oran (Milne-Edwards). 



17. Caridina grandirostris Stimpson, 1860. 



Stimpson, Proceed. Acad. Nat. Sci., Philadelphia, 1860. p. 28. 



Geographical distribution: Loo-Choo (Stimpson). 



18. Caridina gracilirostris de Man, 1892. 



De Man, in Weber. Zoolog. Ergebn., etc., II, 1892, p. 399, pi. 25, fig. 31. 



Geographical distribution: Sumatra, Celebes, Saleyer, Flores (De 

 Man). 



.19. Caridina singhalensis Ortmann, 1894. 



Ortmann, Jenaische Denkschr., VIII, 1894, p. 9, pi. 1, fig. 2. 



Geographical distribution: Ceylon (Ortmann), 



1" It is doubtful, whether the following quotations belong to this species or 

 to Car. wycki: 



C. nilotica Hilgendorf, Mon. Ber. Akad. Wiss., Berlin, 1878, p. 828. — Mozam- 

 bique, Tette. 



C. lo7igiroslris Eichters, Beitr. Meeresf. Maur. Seych. Decap., 1880, p. 162. — 

 Seychelles. 



C nilotica Pfeffer, Jahrb. Hamburg Wiss. Anstalt. , VI, 1889, p. 35. — Zanzibar. 



