112 Rev. T. R. R. Stebbing on new 



its telson, has a couple, and might, on the strength of this, 

 almost claim a new genus to itself. It so happens that all 

 the specimens described in this paper had red eyes, though 

 some of their kinsfolk have been described from the same 

 localities as having a more sober and temperate appearance. 

 No explanation has as yet been offered of this variation in the 

 colour of the eyes between different individuals of the same 

 species, a variation which also sometimes occurs, according to 

 Messrs. Bate and West wood in Anonyx [Edwardsi) serratus, 

 even in one and the same individual at different ages. 



Amphithoe cuniculus, n. sp. PL XL figs. 1, la, lo, lc, 



Id, le. 



This little bright yellow species of Amphithoe has come into 

 the net from rock-pools both at Meadfoot, Torquay, and at 

 Prawle Point. It does not appear to be very common. The 

 head with its bulging cheeks and not very intellectual fore- 

 head, and something in its general gait and bearing when 

 alive, are suggestive of a little rabbit, whence the specific 

 name. 



The antennas are short and sturdy, set back in a frontal 

 concavity ; the two pairs very close to one another, the upper 

 having the peduncle shorter, and the flagellum longer than the 

 lower. The last joint in the peduncle of the upper antenna? 

 can scarcely be distinguished from the flagellum. The eyes 

 are small and red. 



The first gnathopods have the wrist and hand parallel-sided 

 and about equal in length, the wrist, if any thing, the larger. 

 The finger exceeds the palm, against which it closely im- 

 pinges. 



The second gnathopods are large and powerful. The thigh 

 is dilated into a lobe, which runs the whole length, and at the 

 distal end swells out so as to occupy a vacant space left by the 

 reentering angle of the knee. The wrist is short and shallowly 

 cup-shaped. The hand is large, increasing in width towards 

 the distal end, but narrowing again before it reaches the finger- 

 joint. The powerful finger curves across the concave palm, 

 and, with a slender nail on its truncated tip, closes down upon 

 the blunt tooth-like process which terminates the palm and 

 carries a little outwards the thin anterior edge of the hand. 

 The remainder of the hand may be described as bulging. 

 There are a few hairs on the tooth and palm and other parts 

 of these gnathopods. When not in use these limbs are drawn 

 closely up between the coxa?, and are prone to cherish that 

 position after the death of their owner ; so that without great 



