122 



PROCEEDINGS OP THE NATIONAL MUSEUM. 



VOL. 47. 



Legs narrower than in angulatus, second and third pairs suhequal; 

 propodal joint and proximal part of terminal jomt of first thi'ee pairs 

 fringed with hair on the posterior margm; last two jomts and distal 

 part of carpal joint of last pair fringed with hair on both margins. 



The abdomen of the male is narrower and more oblong than in 

 angulatus, and the appendages of the first segment slenderer. 



PLATYCHIROGRAPSUS TYPICUS, new species. 



Plate 5. 



Aspidograpsus typicus Kr0yek, MS., Copenhagen Museum. 



Platychirograpsus spectabilis Rathbun, Proc. U. S. Nat. Mus., vol. 22, 1900, p. 



279 (part); not P. spectabilis de Man, 1896.' 

 Type-locality. — Macuspana River, Montecristo, Tabasco, Mexico; 

 140 miles from the sea, altitude over 100 feet; collected by E. W. 



Fig. 3.— Platychieogeapsus typicus. a. Outer side of laege chela of male in 

 Halifax Museum, nat. size. b. Upper \iew of same, nat. size. c. Outer side 

 OF large chela of small male from Mexico, Cat. No. 19863, X li- 



Nelson and E. A. Goldman, Biological Survey, U. S. Department of 

 Agriculture; 1 male. 



Additional localities. — Mexico ; received from the exhibit by Mexico 

 at the World's Columbian Exposition; 1 male. Gulf of Mexico; 

 1 male (Copenhagen Mus.). One large claw from an unknown 

 locality (Hahfax Mus.). 



Type.—Csit. No. 23761, U.S.N.M. 



Dimensions. — Male type, median length of carapace 42.5 mm., 

 width 51 mm. Male from Mexican exhibit, length 27.2 mm., width 



1 Zool. Anz., 1896, No. 506, p. 292, text fig.; Jahrb. Hamburg. Wiss. Anst., vol. 12, 1896, p. 97, pi. 2, figs. 

 4, 4a, 46, 4d; pi. 3, fig. 4c. 



