﻿1 56 ICHTHTODORULITES. 



45028. Typical specimen ; Airdrie, Lanarksbire. Purchased, 1S74. 



P. 443. Broken specimen ; Newsham, Newcastle-upon-Tyne. 



Presented by T. P. Barlcas, Esq., 1882. 



The following species has also been described, but there are no 

 examples in the Collection : — 



Euctenius elegans, R. H. Traquair, Geol. Mag. [2] vol. viii. (1881), 



pp. 36, 334 : ' Kammplatten', T. Stock, Ann. Mag. Nat. 



Hist. [5] vol. viii. (1881), p. 90.— Middle Carboniferous 



Limestone (Black-band Ironstone) ; Borough Lee, near 



Edinburgh. [R. H. Traquair Collection.] 



The genus has also been recorded from the Coal-Measures of 



Linton, Ohio, where fine groups of this small ichthyodorulite occur. 



See J. S. Newberry, Paleeoz. Fishes N. America (Mon. U.S. Geol. 



Surv. no. xvi. 1889), p. 228. 



A supposed Elasmobranch fish, from the Kupferschiefer of Thu- 

 ringia, is also described as exhibiting several pairs of slender spines 

 in the region of the head (C. Giebel, Zeitschr. gesammt. Naturw. 

 1856, p. 367, pis. iii., iv.). 



Two undetermined Ichthyodorulites have been named, without 

 description, as follows : — 



Cricacanthus jonesi, L. Agassiz, Poiss. Foss. vol. iii. (1843), p. 176 

 (name only). — Lower Carboniferous Limestone ; Armagh. 



Gyropristis obliquus, L. Agassiz, ibid. p. 177 (name only); W.King, 

 Permian Foss. (Pal. Soc. 1850), p. 222.— (?) Permian ; 

 Belfast. 



IXCEET.E SEDIS. 



Fragments of dermal armour, for the most part pertaining to un- 

 known primitive types of fishes, from the Upper Silurian of the Is- 

 land of Oesel. Baltic Sea, are described by C. H. Pander (Monographie 

 der fossilen Fische des Silurischen Systems der russisch-baltischen 

 Gouvernements, 1856) under the following names : — ■ 



Coccopeltus asmusi, Pander, op. cit. p. 50, pi. v. fig. 1. 

 Cypliomalepis egertoni, Pander, ibid. p. 51, pi. v. fig. 3. 

 Dasylepis heyserlingi, Pander, ibid. p. 54, pi. v. fig. 6. 

 Dictyolepis bronni, Pander, ibid. p. 56, pi. v. fig. 5, pi. vi. fig. 14. 

 Lopholepis schmidti, Pander, ibid. p. 55, pi. v. fig. 4. 

 Melittomcdepis efogans, Pander, ibid. p. 60, pi. v. fig. 8. 

 Otiiscolepis magna, 0. dentata, 0. serrata, and 0. crenulata, 

 Pander, ibid. pp. 58, 59, pi. vi. figs. 32-35. 



