by Rev. T. R. R. Stebbing. 51 
Miss Rathbun excludes Alcock’s species from the synonymy, but 
without giving the reasons for so doing, which are not obvious, since 
Alcock’s description seems to include the few points supplied by Dana. 
The female specimen collected by Mr. Bell Marley at Durban 
measures 34 mm. in length by 52 mm. in breadth at the hindmost of 
the antero-lateral teeth of the carapace. The six frontal teeth are 
obtuse, especially the median four. ‘The second antero-lateral tooth 
is very small and the last of the six not larger than the others. The 
transverse ridges on the carapace correspond with those faintly 
outlined by Dana. ‘The posterior margin is straighter than that shown 
by Miss Rathbun. The postero-lateral margins have the lobule which 
she mentions. Her description gives “hands swollen,” Alcock’s 
“hand not tumid”; the Durban specimen agrees with the latter, and 
has five large spines. The hind border of the sixth joint in the fifth 
perzeopods is denticulate. 
Famity XANTHIDA. 
Genus XANTHO, Leach. 
XANTHO QUINQUEDENTATUS, Krauss. 
1843. Xantho 5-dentatus, Krauss, Siid-afrik. Crust., p. 30, pl. 1, figs. 
3, aC. 
1910. X. quinquedentatus, Stebbing, Ann. S. Afr. Mus., vol. vi, p. 
298. 
Specimens from the Durban Museum, submitted to me by Mr. E. C. 
Chubb, completely agree with the figures and description supplied by 
Krauss. 
XANTHO DISTINGUENDUS, de Haan. 
1835. Cancer (Xantho) distinguendus, de Haan, Crust. Japon., decas 
2, p. 48, pl. 13, figs. 7, Ta. 
1858. Chlorodius d., Stimpson, Pr. Ac. Sci. Philad., vol. x, p. 34 (32). 
1861. Xantho d., Heller, SB. Ak. Wien, vol. xliii, p. 323. 
1BSL. KE macgillivrayr, Miers, ‘‘ Alert” Crustacea, p. 211, pl. 20, 
fies, (C; €: 
1886. Lophozozymus (Lophoxanthus) bellus, Stimpson, var. leuco- 
manus, Lockington, Miers, ‘‘ Challenger” Brachyura, p. 115, 
pl. 11, figs. 1, la, Lb. 
