﻿COCCOSTEIDiE. 



311 



chison, K.C.B., about 1846, and entered under the general number 

 15142. Five are figured by Agassiz (Poiss. Foss. V. G. R. pi. xxxii. 

 figs. 3-6, 14), and a few are regarded by the same author (ibid. 

 p. 94) as referable to Asterolcpis minor. Two are of the form 

 named Trionyx sulcatus, S. Kutorga, Beitr. Geogn. u. Palaont. 

 Dorpat's, ii. (1837), p. 13, pi. ii. figs. 1-4, and resemble the speci- 

 men from the Lower Old Red Sandstone of Thurso determined as 

 " Shoulder (i. e. coracoid ?) plate of Asterolepis " by Hugh Miller, 

 " Footprints of Creator " (1849), p. 88, woodc. fig. 38. 



A single slab of Cleveland Shale (Lower Carboniferous), dis- 

 covered by Dr. William Clark in the bank of the Rocky River, 

 below Berea, Ohio, and now in the Museum of Columbia College, 

 New York, seems to pertain to a genus of Coccosteidae distinct from 

 all described above. The fish is characterized by very slender, pro- 

 minently denticulated mandibular bones, a ring of four sclerotic (?) 

 plates, and a scute-ornament of large, high, conical tubercles. It 

 is named Trachosteus ciarJci, J. S. Newberry, Palaeoz. Fishes N. 

 America (Mon. U.S. Geol. Surv. no. xvi. 1889), p. 167, pi. xlii. 

 figs. 1-8. 



Other large detached dermal plates, perhaps for the most part 

 referable to this family, are also described as follows : — 



Aspidichihys, J. S. Newberry, Rep. Geol. Surv. Ohio, vol. i. pt. ii. 

 (1873), p. 322, with the type species, A. clavatus, Newberry, ibid. 

 p. 323, pi. xxxv. figs. 1, 2, from the Huron Shale (Upper Devonian) 

 of Delaware, Ohio. [Columbia College, New York.] Also A. ? in- 

 gens, A. von Koenen, Abh. phys. CI. k. Ges. Wiss. Gottingen, vol. 

 xxx. (1883), p. 34, pi. iii. fig. 1, pi. iv. fig. 4, from the Upper 

 Devonian of Martenberg, near Adorf, and Charlottenzug, near 

 Bredelar, N. Germany [Royal Geological Museum, Gottingen] ; and 

 perhaps the so-called Coccosteus fritschi, Barrande (see p. 294). 



Anomalichthys, A. von Koenen, Abh. phys. CI. k. Ges. Wiss. 

 Gottingen, vol. xxx. (1883), p. 38, with the type species, A. scaber, 

 A. von Koenen, ibid. p. 38, pi. iii. fig. 2, from the Upper Devonian 

 of Martenberg, near Adorf. [Royal Geological Museum, Gottingen.] 

 Drepanaspis, C. Schliiter, Sitzungsb. niederrhein. Ges. Bonn, 

 1887, p. 126, with the type species, D. gemuendenensis, Schliiter, 

 ibid. p. 126. — Lower Devonian ; Gemiinden, Eifel. [Bonn Univer- 

 sity Museum.] 



Glyptaspis, J. S. Newberry, Palaeoz. Fishes N. America (1889), 

 p. 157, with the type species, G. verrucosa, Newberry, ibid. p. 158, 

 pi. xiii. figs. 1, 2, from the Cleveland Shale (Lower Carboniferous) 

 of Ohio. [Columbia College, New York.] 



Lophostracon spitzbergense, E. R. Lankester, Kongl. Svenska 



