266 The Malacostraca of Durban Bay 
1877. £., Tozzetti, ‘Magenta,’ Brachiuri, p. 17. 
1894. #., Rathbun, Pr. U.S. Nat. Mus., vol. xvii, p. 67. 
TOO ieee <5 Bull. U.S. Fish. Comm. for 1900, vol. ii, p. 59. 
EPIALTUS VETCHI, sp. nov. Plate X XIX. 
This small female specimen, taken from under rocks at Vetch’s pier, 
to which prolific locality its specific name alludes, was in life pal_ 
green, with legs yellow, as observed by its captor, Mr. H. W. Bell 
Marley. It cannot be reconciled with any of the numerous varieties 
of the seemingly very variable HZ. bituberculatus, Milne Edwards. It 
has no tubercles on the carapace. ‘The rostrum is broadly obtuse. 
The eyes just peep from its sides the small cornea projecting from a 
much wider bulbous stalk. At some distance from the eye the antero- 
lateral margin shows a feeble tooth, thence sloping to one that is 
better marked, followed by the well-rounded postero-lateral margin. 
The female pleon is broader than long. 
The dissection of the head was difficult or at any rate rather 
unsatisfactory owing to the smallness of the structures and the 
resistance they offered to separation. In the first antenne the third 
joint of tolerably stout longitudinally folded peduncle is distally some- 
what dilated. In the second antennz the peduncle is very slender, 
the flagellum obscurely 3—4-jointed and tipped with a long seta and 
a setule. 
The mandibles are strong, a quadridentate cutting edge being 
continued by a long straight margin sloping obliquely backward. The 
feeble palp has a very small third joint set on the second joint so as 
to form an insignificant chela, tipped with a setule. The principal 
lobe of the first maxilla widens strongly from its base. 
The chelate first pereopods have the movable finger subequal in 
length to the palm. The slightly spinuliferous inner surfaces of the 
obtuse-ended fingers close almost completely together. The fourth 
joint has, in common with all the other perzopods, a distal tooth on 
the outer side, but the short fifth joint or wrist does not share with 
them a similar though less pronounced prominence. The curved, 
acute-ending fingers of all the ambulatory limbs have their inner 
margins densely fringed with setules, longest distally. 
The unfurnished simplicity of the pleopods is no doubt a phase of 
development. Length of carapace 6 mm., breadth something over 
5 mm, 
