44 



Description of Plates — II. to X. 

 Plate 11. 



Fig. 1. A specimen of Ccdacanthus lepturus, of the natural size. In the Museum of 



Practical Geology. 

 Fig. 2. The anterior part of the body enlarged. 

 Pigs. 3, 4. Scales magnified. 



Plate III. 



Fig. 1. Coelacanthus lepturus, of the natural size. 

 Fig. la. Scales magnified. 



Fig. 16. Part of the ornamentation of the operculum magnified. 



Fig. 2. The hinder part of the body of a Coelacanthus lepturus, of the natural size, 



showing the remains of the ossified air-bladder. 

 Fig. 3. Under view of the head of a Coelacanthus lepturus. 



All these specimens are in the Museum of Practical Geology. 



Plate 1Y. 



Fig. 1. Magnified view of the counterpart of the specimen represented in Plate III., 

 fig. 3. 



Fig. 2. The mandible of the same inverted. 



Fig. 3. Under view of the head of a specimen in the collection of Edw. Binney, 

 Esq., F.R.S. 



Fig. 4. Pelvic bones of dxlacanthus lepturus. In the Museum of Practical Geology. 

 Fig. 5. The two dorsal fins of a Coelacanthus lepturus. In the Museum of Practical 

 Geology. 



Fig. 6. Caudal extremity of a specimen of Coelacanthus lepturus. Magnified 1^ times. 



Plate V. 



Figs. Ij 2, 3, 4. Coelacanthus elegans. From specimens in the collection of Sir Philip 

 Egerton, Bart. 



Fig. 5. Coelacanthus caudalis. In the collection of Sir Philip Egerton, Bart. 

 Figs. 5, 6. Coelacanthus elongatus. In the Museum of the Geological Survey in 

 Ireland. 



Plate VI. 



Holophagus gulo, with a scale and fin-rays magnified. In the Museum of 

 Practical Geology. 



Plate VII. 



Fig. 1. Macropoma MantelKi. One half the size of nature. In the Museum of 

 Practical Geology. 



Fig. 2. A detached air-bladder of Macropoma Mantellii. One-half the size of 



nature. In the British Museum. 

 Fig. 3. The head of Macropoma Mantellii figured by Prof. Agassiz, * Recherches' 



II., PI. 65 d, fig. 2, the matrix having been further cleared away. 

 Fig. 3a. The teeth enlarged. In the British Museum (No. 4237). 

 Fig. 4. A side view of the snout of the Macropoma Mantellii. Figured by Prof. 



Agassiz, I.e. Fig. 1. In the British Museum (No. 4,270). 

 Fig. 4a. Front view of the dentigerous " premaxillary " bone. Magnified. 

 Fig. 4b. The upper end of the pectoral arch of this specimen. 



Fig. 5. A pectoral fin of a Macropoma Mantellii. In the British Museum 

 (No. 4,258). 



Fig. 6. The head of a Macropoma Mantellii. Figured by Prof. Agassiz, I.e. 

 Fig. 3, In the British Museum (No. 4,252). 



