Plate XLI. 



Figs. 



1. Congericola pallida P. J. van Beneden, ? dorsal view, 

 x 17. (p. 124.) 

 2-4. Chondracanthus depressus T. Scott, (p. 172.) 



2. ? Dorsal view, x 12. 



3. Posterior end of body in dorsal view, x 12. 



4. Var. oblongus, $ dorsal view, x 12. (p. 173.) 



5. Chondracanthus zei De la Roche, ? dorsal view, x 5. 

 ( P . 177.) 

 ~f 6. Chondracanthus omatus T. Scott, ? dorsal view, x 10. 

 (p. 182.) 



