PYCNOQONIDA— CALMAN. 



53 



of the legs, and in particular of the second coxa, approach more nearly to those of 

 Bouvier's figure of A. minor, but the abdomen is still elevated. 



Measurements, in mm. — 



Length of proboscis 

 ,, trunk 



,, abdomen 

 Third right leg — 



First coxa 



Second coxa . 



Third coxa 



Femur . 



First tibia 



Second tibia . 



Tarsus and propodus 



Main claw 



Auxiliaries 



. " Discovery." 



Holotype. "Terra Nova." 



Ammothea australis (Hodgson). 



Leionymphon australe, Hodgson, 1907, p. 46, PL vii, fig. 1. 

 Ammothea australis, Bouvier, 1913, p. 123. 



Occurrence. — Station 331, Entrance to McMurdo Sound, 250 fathoms; 1 $. 

 Station 338, Entrance to McMurdo Sound, 207 fathoms ; 1 $. Station 340, off Granite 

 Harbour, 160 fathoms; 1 ,?, 1 young. Station 356, off Granite Harbour, 50 fathoms; 

 1 young. 



Remarks. — The specimens agree closely with syn types of the " Discovery " 

 collection and differ from specimens, which I refer to A. clausii, from South Georgia 

 and the South Sandwich Islands, in having the abdomen obliquely set and separated 

 by a short interval from the articulation between the last two trunk-somites, the apex 

 of the ocular tubercle rounded with a small central spike instead of conical, and the 

 setae of the body and limbs less numerous. The sj)inous character of the young, 

 referred to by Mr. Hodgson, is noteworthy. 



Ammothea meridionalis, Hodgson (Text-fig. 12). 

 Ammothea meridionalis, Hodgson, 1914-15, p. 246. 



Occurrence. — Station 356, off Granite Harbour, 50 fathoms; 1 $ ovig. 



Description. — Lateral jyrocesses (except the last two pairs) separated by intervals 

 much less than half their o\\'n diameter. Transverse body-ridges prominent, rising in 

 the middle line into acutely conical processes. Cephalon wider than long, contracted 

 behind, with a pair of spinose tubercles over the bases of the chelo^jhores. Paii'ed 



