by Rev. T.R. R. Stebbing. 265 
appears to be rather rare, some additional details of the structure may 
be acceptable. Owing to the shading, de Haan’s figure of the carapace 
is rather obscure. With the help of his description, however, I think 
it will be found to agree fairly with the drawing which I had made 
before recognising the identification now proposed. All the salient 
points of the carapace are furnished with short curved setz, to which 
in many instances extraneous objects are attached. The narrow pleon 
of the male folds obstinately on the very wide sternum ; it is broadest 
at the third segment, the sides converging to the rounded apex of the 
telson, except at the sixth segment which is a little broader distally 
than at the base. 
The mandibles, with the exception of the infolding palp, are opaque. 
The second maxille are very pellucid; the terminal joint has an 
acutely tipped process rising from a very wide base. In both the 
first and second maxillipeds the exopod is elongate, distally narrowed, 
and having the first joint of the flagellum bent closely backwards ; 
the epipod in both is elongate, but much more extensive in the first 
than in the second. The much more solid third maxillipeds have the 
fourth joint subquadrate, the inner front angle excavate for the small 
palp, of which the terminal joint is abruptly narrower than the 
penultimate. 
The carapace measured 11 mm. in length from the divergence of the 
horns to the hind margin, the inner measurement of the horns being 
3°5 mm. and the breadth of the carapace between the tips of the 
hinder teeth a little less than the length. 
Locality : Tugela River, N.W. by W. 3 miles; depth 14 fathoms. 
Cruise of the “ Pieter Faure.” 
Famity ACANTHONYCHID A. 
See Ann. S. Afr. Mus., vol. vi, p. 226; 1910. McLeay in 1838 
institutes a family Hpialtide (Annulosa S. Afr., p. 56,) but Acanthonyx 
is an earlier genus within it and therefore offers a better foundation 
for the name of the family. 
Genus EPIALTUS, Milne Edwards. 
1834. Hpialtus, Milne Edwards, Hist. Nat. Crust., vol. i, pp. 297, 314. 
1852. #., Dana, U.S. Expl. Exp., vol. xiii, pp. 85, 132. 
1873. #., A, Milne-Edwards, Miss. Sci. Méxique, pt. 5, p. 138. 
