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. Caridina 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. 



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

 Caridina wycki (Hicks.) Thallwitz, Abbandl. 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 wycki (Hicks.) de Man, Not. Leyden Mus., 15, 1893, p. 302, pi. 8, fig. 7. 

 Caridina wycki (Hicks.) Ortmann, Jenaiscbe Denkscbr., 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. 10 



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

 Caridina longirostris Milne-Edwards, Hist. Nat. Crust., II, 1837, p. 363. 

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



fig. 1. 

 Caridina 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. Sei., Pbiladelpbia, 1893, p. 



111. 



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

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



17. Caridina grandirostris Stimpson, 1860. 



Stinipson, Proceed. Acad. Nat. Sei., Pbiladelpbia, 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, Jenaiscbe Denkscbr., VIII, 1894, p. 9, pi. 1, fig. 2. 



Geographical distribution: Ceylon (Ortmann). 



10 It is doubtful, whether tbe following quotations belong to tbis species or 

 to Car. wycki : 



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

 bique, Tette. 



C. longirostris Eicbters, Beitr. Meeresf. Maur. Seycb. Decap., 1880, p. 162. — 

 Seychelles. 



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



