42 MB. A. O. WALKEE ON" AMPHIPODA 



First gnathopod very robust, the 1st joint rather longer than 

 the 4th and 5th, the 2nd longer than the 3rd and 4th ; the 

 propodos expanding slightly distally, as wide as the posterior 

 margin is long, palm slightly oblique and sinuous, and densely 

 fringed with short spines and setules. Carpus very short. 

 Side-plabe widening and rounded below, anterior margin 

 uneven. 



Second gnathopod normal : the side-plate oblong with rounded 

 angles. 



Perseopods : the first two pairs with the 3rd and 5th joints 

 longer than the 4th. The 3rd. and 4th pairs have the 1st joint 

 wide at the top and produced downwards : in the last pair it is 

 more expanded and widest in the middle, longer than the next 

 three joints : in all three the hind margin is faintly serrate. 



Uropods : the 1st and 2nd reach nearly to the end of the 

 shorter ramus of the 3rd; peduncles long and angular, the 

 margins fringed with short spines. Third pair with peduncle 

 about as long as the inner (shorter) ramus, Avhich, as well as the 

 outer, has a few long setae on the inner margin ; the outer 

 ramus has two spines on the outer margin near the point. 



The telson reaches a little beyond the end of the peduncles of 

 the 8rd uropods, cleft with a wide sinus for nearly half its length, 

 a small terminal spine only on each division. 



Length 20 mm. 



Differs from O. crenatipalmatus, Stebbing, in the shape of the 

 3rd metasome-segment, &c., and from C. latimanus, Gr. 0. Sars, 

 in the less widely expanded hand of the 1st gnathopods, the 

 shape of the telson, &c. 



Named after Mr. A. Fouguer, one of the scientific assistants 

 of the ' Southern Cross ' Expedition, who collected it. 



C. Hansoni, n. sp. (PL 7. figs. 7-12.) 

 Cape Adare, 7 fath., Nov. 1, 1899. Nine specimens. 

 Body rather rounded : the first two segments severally shorter 

 than the 3rd and 4th, which again are shorter than each of the 

 last three, each set being subequal. The first 4 side-plates slightly 

 deeper than the segments. Third segment of tJie metasome with 

 the posterior angle 'produced and turned up to a rather hlunt 

 point, posterior margin above the angle straight. First segment 

 of the urosome Avith an acute dorsal elevation. 



