OF THE BRITISH ISLANDS. 175 



are on view in the Buckland Museum, while living ones 

 may be seen in the Exhibition Aquarium. When thus 

 kept in confinement it is highly desirable to keep large 

 specimens separate, they ravenously devouring any other 

 fish of less size than themselves, not excepting individuals 

 of their own species. The young of the Conger was 

 originally described as a separate form, under the title of 

 the Anglesea Morris (Leptocephalus morrisii). The Muraena 

 (Murcena helena), No. 183, is a rare fish on the British 

 coast, but abundant in the Mediterranean and tropical 



FIG. 21. MURAENA (Murana helena). 



seas, distinguished by its compressed contour, absence of 

 pectoral as well as ventral fins, and the beautiful leopard- 

 like mottlings of its naked integument. An exceedingly 

 fine example of this fish, derived from a Continental source, 

 will be found among the spirit series forming the Day 

 Collection. 



SUB-ORDER TV.Lophobranchii. 



The gills not laminated, but composed of small rounded 

 lobes attached to the branchial arches ; the gill-cover 



