ON THE NATURE OF EDESTUS AND RELATED FORMS; 28S 



Hitchcock, F. R. M. 



'87. On the Homologies of Edestus. Amer. Nat., vol. 21, pp. 847-848. 

 Jaekel, O. 



:00. A. Karpinsky: Ueber die Reste von Edestiden und die neue Gattung Helicoprion (Referat). Neues 

 Jahrb. f. Mineral., Jahrg. 1900, Bd. 2, pp. 144-148. 

 Karpinsky, A. 



'99. Ueber die Reste von Edestiden und die neue Gattung Helicoprion. Verh. russ.-kais. min. Gesell. 

 St. Petersburg, Ser. 2, Bd. 36, pp. 361-476, Taf. 1-4. 

 Klaatsch, H. 



:01. Zur Deutung von Helicoprion Karp. Centralbl. f. Mineral., Jahrg. 1901, No. 14, pp. 429-436. 

 Koken, E. 



: 01. Heliocoprion im Productus-Kalk der Saltrange. Centralbl. f . Mineral., Jahrg. 1901, No. 8, pp. 225-227. 

 Leidy, J. 



'56. Indications of five Species, with two new genera, of extinct Fishes. Proc. Acad. Nat. Sci. Philadel- 

 phia, vol. 7, p. 414. 

 Leidy, J. 



'57. Remarks on certain extinct Species of Fishes. Proc. Acad. Nat. Sci. Philadelphia, vol. 8, pp. 301-302. 

 Newberry, J. S. 



'88. On the Structure and Relations of Edestus, with a Description of a gigantic new Species. Ann. New 

 York Acad. Sci., vol. 4, nos. 3-4, pp. 113-122, pis. 4-6. 

 Owen, R. 



'61. Palaeontology. Second Ed. Edinburgh, 8°, xvi+ 463 pp. 

 St. John, O. H. 



:02. (Observations on Edestus and Cochliodus.) Amer. Nat., vol. 36, no. 428, pp. 658-659. 

 Trautschold, H. 



'84. Ueber Edestus und einige andere Fischreste des moskauer Bergkalks. Bull. Soc. Imp. Nat. Moscou, 

 torn. 58, pt. 2, pp. 160-174, pi. 5. 

 Woodward, A. S. 



:00. Helicoprion — Spine or Tooth? Geol. Mag., n. ser., decade 4, vol. 7, pp. 33-36. 

 Woodward, H. 



'86. On a Remarkable Ichthyodorulite from the Carboniferous Series, Gascoyne, Western Australia. Geol. 

 Mag., n. ser., decade 3, vol. 3, no. 1, pp. 1-7, pi. 1. 



Yabe, H. 



:03. On a Fusulina-Limestone with Helicoprion in Japan. Jour. Geol. Soc. Tokyo} vol. 10, no. 113, 

 pp. 1-13, pi. 2. 



EXPLANATION OF PLATE XXL 



Fig. 1. Campyloprion annectans Eastm. Portion of symphysial dentition, right lateral aspect. Xf. 

 Fig. 2. Edestus minor N. and W. Symphysial dentition, right lateral aspect. Xf. 

 Fig. 3. Edestus minor N. and W. Symphysial dentition, left lateral aspect. Xf . 



The original of Figure 1 is preserved in the Museum of Comparative Zoology at Cambridge, Mass.; that of 

 Figures 2 and 3 is the property of Amherst College. 



