REPORT ON THE COPEPODA. 135 



Alebion, Kroyer. 

 Alebion, Kroyer, Bidrag til Kundskab om Snyltekrebs, 1863. 

 Eostrum intermediate in form between that of Caligus and Pandarus, provided with 

 large and strong palps. First pair of swimming feet two-branched, branches two-jointed; 

 outer branches of the first, second, and third pairs armed with curiously-formed laminae. 

 Fourth pair rudimentary, two-jointed, one-branched. Carapace produced backwards into 

 two long, narrow processes. Antenna! palps, sucking-discs, and furcula wanting. 



Alebion car charm, Kroyer. 



Kroyer, Bidrag lil Kundskab om Snyltekrebs, p. 165, Taf. xii. fig. 1. 

 Found on Zygcena malleus at St. Vincent, Cape Verde. 



Nogagus, Leach. 



This genus differs from Pandarus in that the cephalothoracic segments are destitute 

 (or nearly so) of lateral alas, and are not bilobate; the abdomen is well developed, and its 

 segments distinct; there is no rounded telson, and the caudal stylets are laminar, terminal, 

 and bear setse of the true Cyclopoid type. 



1. Nogagus grandis, Steenstr. and Ltk. 



Nogagus grandis, St. and Stk., Snyltekrebs og Lernseer, p. 45, PI. x. fig. 19. 

 One specimen of this fine species. The memorandum of locality lost. 



2. Nogagus lunatus,. Steenstr. and Ltk. 



Nogagus lunatus, ibid, ibidem, p. 49, pi. ix. fig. 17. 

 From back of Garcharias glaucus, Atlantic, March 2, 1876. 



3. Nogagus latreillii, Leach [fide, Steenstr. and Ltk.). 



Nogagus latreillii, ibid, ibidem, p. 44, pi. ix. fig. 18. 

 On Carcharias brachyurus, between Papua and Japan, and near the Kermadec 

 Islands. 



4. Nogagus curticaudis (Dana). 



Specilligus curticaudis, Dana, Crust. U. S. Expl. Exped., p. 1375, pi. xcv. fig. 6. 

 On Carcharias brachyurus, between Papua and and Japan. 



5. Nogagus validus, Dana. 



Nogagus validus, idem, ibidem, p. 1363, pi. xciv. fig. 9. 

 On Carcharias brachyurus, between Papua and Japan. 



