Amphipod Orchestia tucurauna, Fritz Miller. 385 
but those of the fifth said to become broader in old males 
(Fritz Miller). Uropod 1 with peduncle scarcely longer 
than rami, its upper margin bearing numerous spines, both 
rami with lateral as well as terminal spines. Uropod 2 with 
rami about as long as peduncle, both with lateral and terminal 
spines. Uropod 3 with ramus about as long as peduncle, 
with spines on margin and at apex. Telson with posterior 
margin rounded and fringed with numerous spines, very 
slizhtly indented in middle. 
Female.—First gnathopod with side-plate small, triangu- 
larly produced in front, carpus longer and slightly broader 
than the propod, which narrows distally, so that the joint is 
simple, without palm. Second gnathopod with basis of 
nearly same width throughout, broadened, but not greatly so ; 
carpus and propod subequal, long-oval, posterior margin of 
carpus moderately and regularly convex. Perseopods as in 
male, but with the joints a little more slender. In other 
respects closely resembling the male. 
Length of largest male examined about 14 mm. 
Locality, Banks of Waitohi stream, Picton, at some 
distance from mouth; Rapiti Island (F%Aol) (?). 
Distribution. New Zealand, South Brazil, Madeira (?). 
Remarks. 
The mouth-parts are of the type usual in Orchestia, and do 
not call for detailed description. The palp on the first 
maxilla is minute, but distinct. Inthe largest male examined 
there appears to be an obscure rudiment of the fourth joint of 
the palp of the maxilliped, but I can find no sign of it in two 
other specimens mounted, viz., a male less developed and a 
female. 
The New Zealand specimens appear to differ from 
Stebbing’s description of the single specimen of O. sulensoni 
in having the first antenna slightly longer, the flagellum 
having more than four joints. In the first gnathopod the 
rounded lobe at the distal end is more distinct and in the 
second the palm is more transverse ; both these differences 
are probably due to the fact that the type-specimen of O. su- 
lensont was hardly so mature as the Picton specimens. In 
the third uropod the ramus is as long as the peduncle; 
Stebbing describes it as “ not half as long or half as broad.” 
Fritz Miiller’s account deals only with a few special points. 
His figure of the second gnathopod of the male does not show 
the tooth defining the palm, but the strongly marked convex 
