THE WEST-AFRICAN EUPALAEMON-SPECIES. 261 
NOTE XXI. 
ON THE WEST-AFRICAN 
SPECIES OF THE SUBGENUS EUPALAEMON ORTM. 
BY 
Dr. J. G. DE MAN. 
In addition to my description of Palaemon (Eupalaemon) 
LTenzii de Man (see p. 225 of this volume) I give here a 
key to the species of the subgenus Hupalaemon Ortm. as 
yet known to occur in the rivers of West-Africa. Six spe- 
cies are at present known from there, viz.: 
1. Pal. (Eupalaemon) macrobrachion Herklots 1851. 
General distribution: The rivers from Sierra Leone 
to Benguella [Sierra Leone (v. Martens); Liberia (de 
Man); near Boutry (Herklots); river Prah, South of 
Ashantee (de Man); Cameroon (Aurivillius); Congo 
coast, probably from Ambriz (de Man); from fresh 
water at Catumbella near Benguella (de Man)]. 
2. Pal. (Eupalaemon) paucidens Hilgd. 1893. 
General distribution: Adeli near Bismarckburg, Togo 
country (Hilgendorf). 
3. Pal. (Eupalaemon) Foai Cout. 1902. 
General distribution: Upper Congo (Coutière); Bim- 
fille, a tributary of the Rio Benito (Lenz); river Kribi, 
25 miles from the coast of Cameroon (de Man); Dume, 
Cameroon (Lenz). 
4. Pal. (Eupalaemon) spec. (?) Cout. 1902. 
General distribution: Upper Congo (Coutière). 
Notes from the Leyden Museum, Vol. XX XIII. 
