MICHIGAN ACADEMY OF SCIENCE. 
135 
NOTES ON A PALAEMON FROM KAMERUN. 
A. S. PEARSE. 
There is a single male specimen (Catalog No. 38875) of the shrimp, 
Palaemon ( MacrobracKium ) jamaicensis (Herbst) var. vollenhovenii 
(Herklots) in the University of Michigan Museum. It was collected at 
Efulan, Kribi, Kamerun, West Africa, by Mr. George Schwab. As little 
material of this species has been examined from the Kamerun region, 
the following data concerning this specimen may be of interest. 
Rostral formula -4 
Total length 135 mm. 
Length of right second leg 120 mm. 
Length of merus 22 mm. 
Length of carpus 19.5 mm. 
Length of hand 58 min. 
Palm-length 32 mm. 
breadth 8 mm. 
thickness 7 mm. 
Length of fingers 26 mm. 
Ann Arbor, Mich., April, 1911. 
