220 Mr. O. Sund on 



(3) Nitocra brevisetosa, Daday. 



Nitocra brevisetosa, Daday, Teruies. Fuz. 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 yracilimana, Giesbrecht. 



Nitocra gracilimana, Giesbrecht, Ees. Voyage du Belgiea, 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 



a3, or longer than, exopodite 2. 



This joint shorter than the exopodite 4. 



2. Anal operculum smooth N. pusilla, Sars. 



Anal operculum with spines 3. 



3. Furcal rami longer than wide N. hiberniea (Brady). 



Furcal rami wider than long N. typiea, Boeck. 



4. Distal joint of fifth leg of female with six 



setae N. simplex, Schmeil. 



This joint with five setae 5. 



5. Furcal rami as wide as long. Distal joint 



of fifth foot of female narrow N. tvolterecM, Brehm. 



Furcal rami wider than long. Distal joint 

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



XXVII. — The ''Challenger'' Eryonidea [Crustacea). By 

 OSCAR Sund, Cand. Real., Scientific Adviser to the 

 Norwegian Bureau of Fisheries, Bergen. 



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

 of Dr. W. T. Caiman, an opportunity of making the 

 1 Challenger ' collection of Eryonidea the object of a cursory 

 examination. The following lines are a brief account of the 

 chief conclusions arrived at. 



Eryoneicus ccecus, Bate. 



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

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

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

 given by Bate and Willemoes-Suhm is incomplete and the 

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



