220 Mr. 0. Sund on 



(3) Nitocra brevisetosa, Dad ay. 



Kitocra brevisetosa, Daday, Ternies. Fiiz. xxxiv. 1901, p. 37 

 (New Guinea). 



The two-jointed endopodite of the fourth leg and the 

 structure of the antenna and fifth feet exclude this species 

 from the genus Nitocra. It should be included in the genus 

 Canthocamptus. 



(4) Nitocra gracilimana, Giesbrecht. 



Nitocra yracilimana, Giesbreclit, Res. Voyage du Belgica, 1902. 



The smooth anal operculum, slenderness of first leg, form 

 of the sensory spine of the male first leg, and the structure 

 of the fifth feet indicate the genus Ameira. 



Key for Discrimination of the European Specius of Nitocra. 



1 . First leg : first joint of endopodite as long 



as, or longer than, exopodite 2. 



This joint shorter than the exopodite 4. 



2. Anal operculum smooth N. piisilla, Sars. 



Anal operculum with spines 3. 



3. Fiu'cal rami longer than wide N. hihernica (Brady). 



Furcal rami wider than long N. typica, Boeck. 



4. Distal joint of fifth leg of female with six 



setse N. simplex, Schmeil. 



This joint with five setse 5. 



5. Furcal rami as wide as long. Distal joint 



of fifth foot of female narrow K. woUerecki, Brehm. 



Furcal rami wider than long. Distal joint 

 of fifth leg of female broad N. sjnnipes, Boeck. 



XXVII. — 21ie '■Challenger'' Eryonidea [Crustacra). By 

 OSCAE SuND, Cand. Real., Scientific Adviser to the 

 Norwegian Bureau of Fisheries, Bergen. 



During a recent stay in London I had, throngli the kindness 

 of Dr. W. T. Oalnian, an opportunity of n)aking tlie 

 'Challenger' collection of Eryonidea the object of a cursory 

 examination. The following lines are a brief account of the 

 chief conclusions arrived at. 



Eryoneicus ca'cus, Bate. 



Tiie single (type) specimen is 12 mm. long (carapace 

 6'5 mm.), and seems to have been in a rather poor condition 

 wlien preserved. Still it is possible to see that the description 

 given by Bate and Willemoes-Siihm is incomplete and the 

 drawings, especially that by Bate (pi. xii. E), not very 



