40 KANSAS UNIVERSITY QUARTERLY. 



Scap<inovJtyncus rltaphiodon. Plate VIII, fig. i : plate XIV, fig. 5. 



Lamnn (Odonfasp>s) rhaphiodoji Agassiz, Poiss. Foss. Ill, 296, pi, 

 XXXVIIa, ff. 12-16. 



Scnpanorhi/ nchit\' rhap/iiodon Woodward, Cat. Foss. Fishes Brit. Mus. I, 

 353 (where additional synonymy will be found); Proc. Geol. Assoc. XIII, 

 196 — Cenomanian, Russia andGalicia: Cenomanian and Turonian, France, 

 SiXony,and Bohemia: Cenomanian- Senonian, England: Upper Cretaceous, 

 S. India: Upper Cretaceous of Texas, Mississippi, New Jersey; Benton 

 Cretaceous of Kansas. 



Lamnn fp.rann Roemer, Kreideb. von Texas, 29, pi. I, ff. 7; Leidy, Rep. 

 U. S. Geol. Surv. I, 301, pi. XVIII, ff. 46-50; Cope, Cret. Vert. 296. 



Teeth of considerable size, slender, the anterior ones without lateral 

 denticles; inner coronal face conspicuously and finely striate. 



A number of teeth before me from the Cretaceous of New Jersey and 

 one from the Benton Cretaceous of Kansas agree fairly well with the 

 figures given by Leidy of specimens from Mississippi, New Jersey, 

 and "from near the mouth of Vermilion creek, in Kansas,'" and which 

 agree with those from Texas called Lanina texana by Roemer. 



The specimens agree so well with the European species, especially 

 as figured by Woodward (1. c, I have no European specimens for 

 comparison), that I think there cannot be much doubt of their iden- 

 tity, a conclusion suggested by Woodward. 



The Kansas specimen described by Leidy was said to have been 

 obtained by Hayden from a "gray sandstone from near the mouth of 

 Vermilion river." The Vermilion in Kansas runs its whole length 

 through the Carboniferous in eastern Kansas ; nor do I think there is 

 any gray sandstone (necessarily Dakota Cretaceous) in the state 

 which will yield these teeth. In all probability the specimens did not 

 come from this state. However, a specimen in our collection agreeing 

 with the species was obtained in the state, and probably from the Ben- 

 ton, though possibly from either the Niobrara or Fort Pierre. 



Coi'dx. 



The genus Corax is confined wholly to the Cretaceous, and is known 

 from the teeth only. Its distinction from Galeocerdo, under which 

 name some of its species have been described, is based upon the solid- 

 ity of the teeth — those of Galeocerdo have a hollow cavity within. 

 The teeth are small, compressed, more or less triangular, with mar- 

 ginal serrations, though this character may be more or less wanting 

 in young individuals. They vary not a little in shape in the same 

 individual. In some the crown is nearly bilaterally symmetrical, but 

 they more usually have the crown directed more or less obliquely 

 backward, the anterior margin convex, the posterior more or less 

 straight and angulated. 



Three species of the genus are known in England — Cfalcatus, C. 

 pristodontus, which is hardly distinct, and C. ajfinis. In addition, C. 



