PYONOGONIDA— CALMAN. 



33 



proximity with i\^. mericlionale, Hoek, which I have regarded as a synonym of N. 

 gracilipes, Miers. N. hiemale is, however, a much larger species, and differs in certain 

 proportions of the body and limbs, as shown by the measurements given above. The 

 greater length of the proboscis and shortness of the cephalic segment are noteworthy. 

 There is also a characteristic difference in the fingers of the chelte, which are much 

 straighter, meeting along their length when closed. In N. grpicilijDes the movable finger 

 is strongly arched, and the fingers gape widely even when the points cross for some 

 distance. 



Nymphon adareanum, Hodgson. 

 N. adareanum, Hodgson, 1907, p. 23, PI. iii, fig. 3. 



Occurrence. — Station 220, off Cape Adare, 45-50 fathoms; 12 specimens. 

 Measurements, in mm. — "Discovery." 



Holotj'pe. 

 <? 



Length of proboscis . 

 •Diameter of proboscis at base 

 Length of trunk 

 Length of cephalic segment 

 Greatest width of cephalon 

 Width of neck 

 Leno;th of abdomen 

 Third right leg — 



First coxa 



Second coxa 



Third coxa 



Femur 



First tibia 



Second tibia 



Tarsus 



Propodus . 



Claw 



Auxiliaries 



Palp- 



Second segment. 

 Third 



Fourth ,, 

 Fifth „ . 



Remarks. — The " Terra Nova " specimens agree very closely with the holotype. 

 The proportions of the palpal segments are incorrectly given by Hodgson. Those of 



