﻿r>t'2 CROSSOPTKRYQII. 



39189. Head-bones and greater portion of squamation ; Thurso. 



Bowerbanlc Coll. 



42456. Two imperfect specimens on one slab ; Stone Gun. 



Peach Coll. 



42468. Imperfect large fish ; Thurso. Peach Coll. 



P. 5489. Similar specimen, dorsal aspect, showing head and oper- 

 cular bones ; Thurso. Purchased. 



49665-67. Three small specimens, showing the position of the 

 fins ; Holburn Head, near Thurso. Purchased, 1879. 



P. 820. Two small specimens ; Thurso. Egerton Coll. 



P. 819. Head and anterior scales, labelled in Hugh Miller's hand- 

 writing, thus : " First specimen I laid open on visiting 

 Wieland-burn, near Thurso, July 1846. . . This minute 

 species of Osteolepis, varying from three to four inches in 

 length, is very abundant at Wieland." Egerton Coll. 



P. 3299. Portions of small fish ; Thurso. Enniskillen Coll. 



P. 6081. Two specimens, the smaller displaying the trunk and 

 portions of fins, the larger showing parts of the head and 

 squamation; Thurso. 



Presented by F. Harford, Esq., 1889. 



The supposed species from Bussia described as follows are based 

 upon insufficient material : — 



Osteolepis fischeri, E. von Eichwald, Leth. Rossica, vol. i. (1860), 

 p. 1554, pi. lvii. fig. 15 ; C. H. Pander, Saurodipt., Den- 

 drodont. &c. devon. Syst. (1860), p. 7 : Megalichthys 

 fischeri, E. von Eichwald, Bull. Soc. Imp. Nat. Moscou, 

 vol. xvii. (1844), p. 832, and vol. xix. (1846), pt. ii. p. 309, 

 pi. x. fig. 34. — Devonian ; Marjina, B. Slawjanka. [Fron- 

 tal region of skull ; University of St. Petersburg.] 



Osteolepis intermedia, E. von Eichwald, Bull. Soc. Imp. Nat. 

 Moscou, vol. xvii. (1844), p. 831, and ibid. vol. xix. 

 (1846), pt. ii. p. 308, pi. x. figs. 30, 31, and Leth. Eossica, 

 vol. i. (1860), p. 1553, pi. lvii. fig. 10 ; L. Agassiz, Poiss. 

 Eoss. Y. Gr. E. (1845), p. 155. — Devonian ; Marjina, and 

 Borowitschi, E. Prikscha. [Scale; University of St. 

 Petersburg.] 



