PLATE XII. 



Dalmanites (Odontocephalus) selenurus. 



Page 49. 

 See Plate 11 b. 

 Fig. 1. An imperfect cephalon. Drawn from Green's cast No. 36 of the type specimen of Calymene? 

 odontocephala. 



Corniferous limestone. Ulster county. 

 Pig 1 . 2. A large, nearly entire individual, retaining the crust and normal proportions over the thorax and 

 pygidium, '"it somewhat crushed about the head. 



Corniferous limestone. Auburn, Cayuga county. 

 Fig. 8. An individual of medium size from which a portion of the head ami thorax has been broken 

 away, exposing the hypostoma in place. 



Corniferous limestone. Wateroille, Oneida county. 

 Fig. 4. A distorted ami partially dismembered example, retaining the crust and the eyes. 



Corniferous limestone. Near Auburn, Cayuga county. 

 Fig. ",. A nearly entire cephalon drawn from an internal cast, retaining the eyes and showing the direc- 

 tion of the facial sutures. Enlarged to two diameters. 

 Fig. (>. Profile of the same, showing the elevation of the eye. 



Corniferous limestone. Canandaigua, Ontario county. 

 Fig. 7. A cephalon, an impression of the interior, showing the casts of tubulipores on the anterior margin. 

 Enlarged to two diameters. 



Corniferous limestone. Canandaigua, Ontario county. 

 Fig. S. Anterior view of a large, enrolled individual retaining a portion of the crust. 

 Fig. 9. Posterior view of the same, the pygidium truncated by the breaking away of the caudal spines. 



Corniferous limestone. Schoharie, Schoharie county. 

 Fig. HI. A small, enrolled individual from which the crust has been broken away. 

 Fig. 11. Profile view of the same. The left eye of this specimen has been restored in the drawing. 



Corniferous limestone. Schoharie, Schoharie county. 

 Fig. ['2. A portion of the cephalic border, enlarged to three diameters, showing the shape of the denticu- 

 lations and their strongly granulose anterior edges. 



< 'orniferous limestone. Lime Rock, near LeRoy, Genesee county. 

 Fig. \?>. A block of decomposed chert, bearing two nearly entire individuals and portions of several others, 

 all preserved as infernal casts. 



Corniferous limestone. From a loose boulder five miles smith of Ovid, Seneca county. 



