PLATE XXXVI. 



(The cost of this plate lias been defrayed by the Carnegie Trust for the Universities 



of Scotland.) 



Fig. 



1. Mliadinichthys (?) angustulus> Traquair; natural size. From the Lower Carboni- 



ferous (Calciferous Sandstone Series), Gleucartholm, Eskdale. Specimen in the 

 Collection of the Geological Survey of Scotland. 



2. Scales from another specimen of the same species, from the same horizon and locality, 



magnified six diameters. Also in the Collection of the Geological Survey of 

 Scotland. 



3. Myriolepis Ilibeniica, Traquair. Specimen deficient posteriorly, but showing all 



the fins except the caudal, natural size. B. pect., right pectoral ; r. vent., right 

 ventral; d., dorsal; a., anal. From the Coal Measures, Jarrow Colliery, Co. 

 Kilkenny, Ireland. In the Museum of Practical Geology, Jermyn Street, 

 London. 



