﻿890 CROSSOPTERYGII. 



acuminate in front, nearly two and a half times as long as their 

 maximum breadth. Scales large and thick, covered with even 

 rounded ridges forming a complete reticulation. 



The finest known example of this fish, described by Huxley in 

 1866, is now in the Elgin Museum. 



Form, fy Loc. Upper Old Red Sandstone : Fifeshire and Elgin. 



26118. Type specimen, described and figured by Agassi/, and Ander- 

 son ; Dura Den, Eifeshire. Purchased, 1851. 



Glyptopomus sayrei, Newberry. 



1878. Glyptopomus sayrei, J. S. Newberry, Ann. New York Acad. 

 Sci. vol. i. p. 189. 



1889. Glyptopomus sayrei, J. S. Newberry, Palaeoz. Fishes N. America, 

 p. 116, pi. xviii. fig. 1. 



Type. Head, pectoral fins, and anterior abdominal region, ventral 

 aspect ; Lehigh University, Pennsylvania. 



A species closely related to G. minor, known only by the type 

 specimen. The " triangular accessory jugulars ' ; ' of G. minor noted 

 by Newberry are the infraclavicles, met with in all Crossoptery- 

 gians sufficiently well preserved. 



In this fossil the lateral jugular plates are shown, and it is 

 suggested (op. cit. 1889, p. 118) that if such plates eventually prove 

 to be absent in the typical G. minor, the fish may be regarded as 

 representing a distinct genus, Glyptognaihus. 



Form. Sf Loc. Catskill Group : Susquehanna River, near mouth of 

 Mehoopany River, Pennsylvania. 



Not represented in the Collection. 



Glyptopomus kinnairdi, Huxley. 



1859. Glyptolcemus Jcinnairdi, T. H. Huxley, in Anderson's Dura Den, 



p. 63, pis. iii., iv. 

 1859. Diplopterus dalgleisiensis, J. Anderson, ibid. p. 71, pi. i. fig. 4. 



[Head ; Museum of Practical Geology.] 



1861. Glyptolcemus kinnairdi, T. H. Huxley, Figs. & Descrips. Brit. 

 Organic Remains (Mem. Geol. Surv.), dec. x. p. 41, pis. i., ii. 



1862. Glyptolcemus, J. Powrie, Quart. Jo urn. Geol. Soc. vol. xviii. 

 p. 435. 



(?) 1888. Glyptolcemus kinnairdi, M. Lohest, Ann. Soc. Geol. Belg. 

 vol. xv. p. 158, pi. ix. figs. 6, 7. [Scales ; M. Lohest Collection, 

 Liege.] 



1890. Glyptolcemus kinnairdi, Woodward & Sherborn, Cat. Brit. Foss. 

 Vertebrata, p. 85. 



