2 KANSAS UNIVERSITY QUARTERLY. 



was given of additional remains referred to the same species and 

 renamed P. occidentalis. 



Pteranodon ingens. 



Pterodactylus incjents Marsh, Amer. Jourii Sci. iii, p. '246, April 1872, Si-p. p. 0. 

 Pteranodon ingens Marsh, Amer. Journ. Sci. xi, p. o08, June 187(5. 



This species is based upon various bones of the wing-finger of 

 several individuals, and three teeth. 



Pteranodon umbrosus. 



Ornithocheirus umbrosus Cope, Proc. Aiiicr. Pliil. Soc. 1872, p. 471. 

 Pterodactylus umbrosus Cope, Cret. Vert. p. (55, pi. vii, If. 1-4. 



Marsh (Amer. Journ. Sci. xii, p. 480, Dec. 1876) says this name 

 is a synonym of F. ingc/is, published two days earlier. As this 

 synonymy is not certain, and as Cope's species has been figured, I am 

 not ready to accept his views. 



Pteranodon velox. 



Pterodactylus velox Marsh, Amer. Journ. Sci. iii, p. 247, April 1872, Sep. p. 8. 



Based upon the distal end of the right metacarpal of the wing-finger, 

 and the proximal extremity of the adjoining first phalanx, two unchar- 

 acteristic parts of the skeleton, Marsh to the contrary notwithstanding. 

 It is doubtful whether the direct comparison of the types will suffice 

 to determine the species with certainty. "Both of the bones are 

 somewhat distorted by pressure." 



Pteranodon longiceps. 



Pteranodon longicc^hs Marsh, Amer Journ. Sci. xi, p. 508, June 1875; xxvii, 

 p. 424, pi. XV, May 1884. 



Based upon a somewhat defective skull, without other bones. 

 There is no evidence whatever that the species is distinct from the 

 preceding. 



Pteranodon comptus. 



Pteranodon cowptus Marsh, Amer. Journ. Sci. xi, p. 509, June 187(5. 



Based upon wing-bones of three individuals. The description is 

 meagre. 



Pteranodon nanus. 



Pteranodon nanus Marsh, Amer. Journ. Sci. xxi, p. H43, April 1881. 

 Based upon various remains of one individual; the humerus, alone, 

 is recognizably described. 



NYCTODACTYLUS. 



JSfyctosaurus Marsh, Amer. Journ. Sci. xii, p 480, Dec 1876. (nomen preoc.*). 

 Nyctodactyliis Marsh, Amer. Journ. Sci. xxi, p. 348, April 1881; ibid, xxvii, 

 p. 423, May 1884. 



* This preoccupation rests, so far as I am aware, upon Marsh's statement, I 

 can find no evidence of the name having been pre\-iously used. 



