Chilton. — Some New Zealand Am'phipoda . 



Length of New Zealand specimens, about 9 mm. ; Antarctic specimens, 

 up][to 12 mm. or more. 



Colour greyish or light-brown, made up of dark dots or stellate markings. 



Distribution : New Zealand (Dunedin Harbour, Lyttelton, Akaroa, &c.) ; 

 Cape Adare ; Coulman Island ; McMurdo Strait ; Petermann Island ; 

 Flanders Bay ; Port Charcot ; Orkney Islands : probably circumaustral. 



Leptamphopiis novae-zealayidiae. 'J 



Fig. 1. — Fir§t gnathopod. Fig. 3. — First uropod. 



Fig. 2. — Second gnathopod. FiG. 4. — Second uropod. 



Fig. 5. — Third uropod and tekon, showing ridge on inner 

 branch of the third uroi^od. 



This species very closely resembles P. longimanus (Boeck), a species found 

 in the Arctic and North Atlantic Oceans, the chief difference being that 

 in P. longimana no segment of the body is produced into teeth. 



The Antarctic specimens appear to differ constantly from those occur- 

 ring in New Zealand in the presence of a minute accessory appendage on the 

 upper antenna. Both Walker and Chrevreux remark on the variation in 

 the dorsal teeth of the body-segments in Antarctic specimens of different 

 sizes ; all the mature New Zealand specimens seem to agree in having the 

 last peraeon and first two pleon segments produced into teeth. 



