14 The Malacostraca of Natal 
The great disparity between the length and breadth of the carapace 
may account for some strange features in the mouth-organs, the great 
breadth of the third joint in the third maxillipeds and of the outer 
plate in the first maxillz, but especially the obstinate folding over of 
the massive terminal part of the endopod in the first maxillipeds. 
The vibratory lamina of the second maxille is normal, which only 
needs mention, because it is omitted in de Haan’s figures of the 
mouth-organs of this genus. 
The hands of the chelipeds are long and strong, with a regular line 
of granulations on the outer surface, a large strip of the inner being 
felted, with a pearly tubercle near the wrist ; the movable finger has 
at the base a tooth covered by the felt which conceals its depressed 
inner border. 
Locality : Durban. The specimen was obtained by Mr. Bell Marley. 
Specimens collected by Mr. A. L. Bevis have since been sent me by 
Mr. Chubb. 
Genus UCA, Leach. 
1814. Uca, Leach, Edinb. Encycl., vol. vii, p. 430. 
1908. Uca, Stebbing, 8S. Afr. Crust., pt. 3 p. 39 (with synonymy). 
1900. Ucea, M. J. Rathbun, Pr. Washington Ae. Sci., vol. ii, p. 134. 
1900. Uca, M. J. Rathbun, American Naturalist, vol. xxxiv, no. 403, 
p. 58d. 
1901. Uca, M. J. Rathbun, U.S. Fish. Comm. for 1900, vol. ii, p. 6. 
1902. Uca, M. J. Rathbun, Pr. Washington Ac. Sci., vol. iv, p. 275. 
1904. Uca, M: J. Rathbun, Crust. N.W. America (Harriman Exp.), 
ps Loo: 
1910. Uca, M. J. Rathbun, Men. Ac. Roy, Danemark, ser. 7, vol. v, 
p. 322. 
1910. Uca, M. J. Rathbun, Bull. Mus. Comp. Zool., vol. li, p. 305. 
1910. Uca, M. J. Rathbun, Pr. U.S. Mus., vol. xxxviii, p. 550. 
1913. Uca, M. J. Rathbun, Pr. U.S. Mus., vol. xliv, p. 615. 
1914. Uca, M. J. Rathbun, Pr. U.S. Mus., vol. xlvii, p. 126. 
1914. Uca, M. J. Rathbun, Pr. Zool. Soc. London, p. 661. 
1914. Uca, A. 8. Pearse, Smithsonian Report for 1913, p. 415 
(Habits of Fiddler Crabs). 
1907. Gelasimus, Stimpson, Smithson. Mise. Coll., vol. xlix, p. 104, 
1915. G., Kemp. Mem. Ind. Mus., vol. v, p. 22 
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