FAMILIES AND GENERA, 67 



Mugilidse. (ACANTHOPTERYGII.) Plate xi. 

 Mugil, 85, 86. 



MullidSB. (ACANTHOPTERYGII.) Plate ii 

 Mullus, 8, 9. 



MursenidSB. (PHYSOSTOMI.) Plate xxii. 

 Murcena, pectorals absent, 168. 



Conger, pectorals present, upper jaw longer than lower, 167. 

 Anguilla, pectorals present, upper jaw not longer than lower, iCG 



MyliobatidSB. (BATOIDEI.) Plate xxxiii. 



Myliobatis, dorsal beyond ventrals, 250. 

 Cephaloptera, dorsal between ventrals, 251. 



NotidanidSB. (SELA'CHOIDEI.) Plate xxix. 

 Notidanus, 229. 



Ophidiidse. (ANACANTHINI.) Plates xviii. and xix 



Ophidium, ventrals a pair of bifid filaments, 143. 

 Fierasfer, ventrals absent, anal beginning at throat, 144. 

 Ammodytes, ventrals absent, anal remote from throat, 145-147 



Percidse (ACANTHOPTERYGII.) Plate i. 



Two dorsals. 



Perca, anal with 2 spines, i. 

 Labrax, anal with 3 spines, 2. 



One dorsal. 



Acerina, anal with 2 spines, 3. 

 Dentex, anal with 3 spines, tail forked, 7. 



Polyprion, anal with 3 spines, tail not forked, operculum ridged, 6. 

 Serranus, anal with 3 spines, tail not forked, operculum not 

 ridged, 4, 5. 



Pleuroneetidse. (ANACANTHINI.) Plates xix., xx., xxi. 

 Eyes right. 



Hippoglossus, jaws alike, lateral line curved, 149. 



Hippoglossoides, jaws alike, lateral line straight, 150. 



Pleuronectes, mouth at end of snout, teeth larger on blind side, 



157-161. 



Solea, jaws longer on blind side, teeth only on blind side, snout 

 projecting beyond jaws, head curved, chin bearded, 162-165. 



