﻿436 ACriNOPTEKYGIl. 



with striae passing into rounded, elongated tuberculations on the 

 cranial roof ; teeth of relatively small size on the maxilla. Scales 

 nearly smooth, those of the anterior part of the flanks with few, 

 irregular, delicate rugae close to and parallel with the anterior and 

 inferior borders, and sparse pittings on the rest of the exposed 

 surface ; hinder border not serrated. 



Form. <$f Loc. Middle Carboniferous Limestone (Edge-Coal 

 Series) : Midlothian and Fifeshire. Carboniferous Limestone : 

 Lanarkshire. 



P. 3443. Well-preserved specimen displaying all the fins, shown, of 

 the natural size, in PI. XVI. fig. 7 ; Wallyford, near 

 Edinburgh. The head exhibits the dorso-lateral aspect, 

 and the bones are seen only as impressions of their 

 external surface. The fins consist of broad, longitudinally 

 ribbed rays, closely articulated and distally branching : 

 and there are prominent fulcra. The pelvic fins are some- 

 what inferior in size to the pectorals, and even the 

 foremost rays of the latter are distinctly articulated. The 

 dorsal and anal fins are about equal in size, and the latter 

 arises opposite the hindermost rays of the former. The 

 upper lobe of the tail is wanting distally, but the caudal 

 fin is well preserved and exhibits its bifurcation. Except 

 upon the upper caudal lobe, the scales are all displaced, 

 but their general proportions are recognizable. 



Enniskillen Coll. 



P. 839, P. 1008. Four specimens ; Lochgelly, Fifeshire. 



Egerton Coll. 



P. 3434, P. 3442. Four specimens : Lochgelly. Enniskillen Coll. 



V. 4799. Imperfect fish ; Blackband, Fossil, near Glasgow. 



Armstrong Coll.— Transfen*ed from Edinburgh Museum, 1884. 



The following species are of uncertain generic position : — 

 Gonatodus brainerdi, J. S. Newberry, Palseoz. Fishes IS". America 

 (Mon. U. S. Geol. Surv. no. xvi. 1889), p. 125, pi. xxxiv. 

 figs. 1,2: Palceoniscus brainardi, J. S. Newberry, Amer. 

 Journ. Sci. [2] vol. xxxiv. (1862), p. 78 (name only) : 

 Palceoniscus brainerdi, J. S. Newberry (ex Thomas), 

 Eep. Geol. Surv. Ohio, vol. i. pt. ii. (1873), p. 346.— 

 Berea Grit (Lower Carboniferous); Ohio. [Columbia 

 College, New York.] 

 Gonatodus molyneuxi, R. H. Traquair, Geol. Mag. [3] vol. v. 



