[903-] 



Hay, North American Cretaceous Fishes. 



41 



Loomis as Thryptodns ziiteli belongs to the same genus as 

 the one here described, but it is also quite as certain that it 

 represents a different species. It appears to have had a 

 flatter skull and probably a blunter snout. Furthermore, the 

 upper and the lower dental plates were all proportionally- 

 shorter and broader than in .4. aratits. 



Anogmius altus (Loomis). 



Syntegniodus altus Loomis (F. B.), PalEeontogr. XLVI, 1900, p. 253, 

 pi. xxii, fig. 9. — Woodward (A. S.), Cat. Foss. Fishes Brit. Mus. 

 IV, 1901, p. 84.— Hay (O. P.), Bibliog. and Cat. Foss. Vert. N. A. 

 1902, p. 390. 



Dr. Loomis's type of this species included the hinder portion 

 of the skull and the parasphenoid. The specimen is figured 

 by him so as to present a lateral view. 



No. 21 1 2 of the American Museum of Natural History is 

 a part of the Cope Collection, and was collected by C. H. 

 Sternberg in 1877, probably in Gove County, Kansas. It 

 furnishes about the same parts as does Loomis's specimen; 

 but it is crushed obliquely downward. Figure 27 presents a 



ep.o. 



op.o. 



Fig. 27. A nog»ti!is alius ? ( Loomis). 

 No. 2112. X 5. Upper hinder part of 

 skull. 6,0c., basioccipital ; c/. <?., epi- 

 otic ; yV-., frontal ; op. o., opisthotic ; 

 J>a,, parietal ; sq., squamosal. 



Fig. 28. Same as Fig. 27. X \. Base of 

 skull, als., alisphenoid ; ex. oc.^ exoccipital ; 

 o/>. 0., opisthotic ; o. s., orbitosphenoid -^par., 

 parasphenoid ; pro., prootic ; p. sp., pre- 

 sphenoid ; sq., squamosal. 



view from above; Figure 28 from below. The specimen can- 

 not be identified with certaintv as A. altus; since, as will 



