60 



REPOET ON A COLLECTION FROM 



having the fingers as long or even, according to Ortmann's figure, slightly longer than the 

 palm. PalcBnion Uierlngi, Ortm. {I. c. p. 211, est. i. figs. 7 e, 8) is apparently also 

 different. The carpus of the second legs, indeed, does not gradually and regularly widen 

 towards its distal end, but suddenly, so that the form is different. 



Measurements in millimetres. 



No. 1. 



Length from tip of rostrum to extremity of abdomen 



„ of second legs 



„ of merus 



„ of carpus 



Width of the carpus at the distal end 



Length of chela 



„ of palm 



Breadth „ 



Height „ 



54 



Left. 

 58 



10| 



10| 



4 



25 



15| 



Right. 

 61 



101 



11 



4 

 28i 

 18 



64 



No. 0. ' No. 6. 



45 



32 



H 

 6 



oi 



12| 



7 



^ 



39 



7 



n 



2| 



18 

 10 



■n 



No. 6 is a detached leg. 



EXPLANATION OF PLATE 6. 



Figs. 1-4. Palmmon Quelchi, sp. u. Anterior portion of carapace in four examples, X 3 : Fig. 1 of the 

 largest male, long. 54 mm. ; Fig. 2 of the ova-beariug female, long. 38 mm. ; Fig. 3 of another 

 male, long. 52 mm. ; Fig. 4 of a young male, long. 35 mm. 



Fig. 5, right, and Fig. 6, left leg of the second pair of the largest male, long. 54 mm., x 2. 



Fig. 7, One of the legs of the second pair of a female without eggs, long. 42 mm., X 2 ; 7 a, toothing of 

 botli fingers of this specimen, x 25. 



Fig. 8. Fifth leg of the largest male, long. 54 mm., X 5. 



List of the known Species of the Genus Palsemon, Fabr. s. s., May 1900. 



[The species printed in italics inhabit America and the West Coast of Africa. The locality- 

 indicated as the habitat is in every case taken from the first published description of the species. 

 Of those marked with an asterisk the descriptions were not accessible to me when preparing this list.] 



1. acanthosoma, sp. n. (?) Nob. Katau, New Guinea. 



2. acaiithurus, Wgm. Coast of Brazil. 



3. acutirostris, Dana. Sandwich Islands. 



4. africanus, Bate. Tambo river. — According to von Martens, 1869, = Gaudichaudii, M.-E. The 



Tambo river, mentioned by Spence Bate as the habitat of his species, would, according to 

 von ^lartens, be situated in Peru! Confer also: Miers, ' On a Collection of Crustacea from 

 South America,' 1877. 



5. africanus, Kingsl. West Coast of Africa. — Thalhvitz, 1891, supposes this species to be identical 



with Pal, macrob)-ucMo7i, Herkl. 



