INDEX TO AUTHORITIES CITED. 
Page. 
Afanasyeff 53 
Agassiz, L. J. R 11 
Airoldi, P. 13, 32, 50, 51 
Batsch, A. J. G. C 14 
Bell, F. J 12 
Bilharz, T 7, 12, 14, 15, 16, 32, 42 
Bizzozero, G 30, 92 
Blanchard, R. A. E. . . . 10, 11, 12, 13, 14, 17, 18, 19, 21, 22, 24, 27, 29, 31, 32, 43, 58, 76, 79 
Bloch, M.E 14,101,102,108,110 
Bordier 56 
Bucklers 55 
Calandruccio, S 17, 20, 21, 29, 31, 32, 34, 42, 43, 44, 62, 63, 69, 95 
Chabert, P 14,99 
Cima, F 54 
Cobbold, T. S 13, 67, 75, 76 
Cohn, L 11,12,14,102,104 
Comini, E 44, 45 
Creplin, F. C. H 9, 13, 80, 81, 82, 84 
Dadai, J 14, 108, 109 
Davaine, C. J 64, 65, 66 
Dawson, J. L 59 
Dujardin, F 7, 12. 16, 17, 18, 19, 20, 21, 22, 23, 29, 32, 33, 34, 62, 81, 84, 92, 94, 103 
Eichhorst, H.L 78 
Fabricius, J. C - 94 
Favarcq, L 18,19 
Feletti, R 55 
Feuereisen, J 102, 104, 106 
Frisch, J. L 14, 101 
Galvagno 55 
Gmelin, J. F 7,12,17 
Goeze, J. A. E 101,102 
Grassi, G. B 13, 17, 20, 21, 29, 30, 31, 32, 34, 35, 36, 37, 38, 39, 40, 41, 42, 
43, 44, 61, 62, 68, 69, 79, 83, 84, 85, 86, 88, 91, 92, 94, 95, 96, 97, 98, 99, 100 
Guseff, G. I 53 
Hallock, H.M 7 
Hirsch, J. C. M 66,67,75 
Holez 43 
Huber, J. C 12, 13, 55 
Innes, W. F 42, 68 
Jackson, J. B. S 82,98 
Kowalewski, M 106 
Krabbe, H 12, 21, 22, 30, 62, 102, 103, 106, 108 
Krantz 20, 21 
136 
