/ 



88 Explmiation of the Plates. 



Fig. 2. One of the first pair of members more highly magnified. 



Fiff.3. Labium ? highly magnified. + basis 



Fig, 4. one of the first pair of maxilla; or jaws magnified in the same degree, 

 + point of union, a, apex. 



Fig. 5. One of the second pair of jaws, similarly magnified, a, toothed 

 margin. + basis. 



Fig. 6. One of the mandibles with its palp, also highly magnified, a 

 toothed apex of the mandible. + apophysis for muscular attachment, b, palp 



Fig. 7. Lepas Balanus or common acorn-shell seen from above and of 

 its natural size, with the valves of the operculum open m, and the animal 

 exserted b, in the act of throwing off its Exuvium c. 



NEBALIA 



Plate XI. Fig. I, Nebalia Herbstii, after Dr. Leach, magnified ; the line 

 beneath indicates its natural size, c, Clypeus. t tail or abdominal portion, r, 

 beak, e, eyes, a, antenna;, a 2, anterior pair of feet./, the 5 posterior or na- 

 tatory feet of one side, with their bifid divisions, s, styles terminating the tail. 

 Fig. 2. Nebalia Moniagui, magnified ; the same letters indicate corespon- 

 ding parts of the former. / 2, short intermediate members. / 3, minute sub- 

 abdominal fins. 



ERRATA. 



Page 73, line 10 from the top ..for Daphinia rend Daphnia. 

 74, " 15 from bottom ../or Benache ?-f«rf I5ernache. 



CORK: 

 PiititP'l by J. Hkvukssy, ['rfiicli-ilmrrli-strept Prpef. 



