Corresjiondence. 



269 



By means of Callionymus, Eleotris, and Chirus, we pass to the 

 Lophiidse, or Amphibious Acanthopterygians, of which the known 

 genera may probably be as follows ; but the truth is, that I have never 

 had an opportunity of accurately examining any of Cuvier's " Labyrin- 

 tkiform Pharyngeals." The following genera are chiefly to be ranked 

 as families : — 



LABYRINTHI- 

 FORM PHARYN- 

 GEALS, Cuv. 



Carpal bones not 

 elongated. 



r 1 - 

 l 2 - 



l 



■ 



L 



***** 



Anabas, Cuv. 



OpHICEPrfALUS, 



Bl. 



Spines in the fins ? 

 No spines in the fins ? 



\ 



PEDICLED PEC- r4. Batrachus, Bl. One dorsal. 



TORALS, Cuv. 5. Lophius, Linn. Two dorsals. 



Carpal bones elon- 

 gated. 



By means of Ophicephalus we pass to the Labridae, or fleshy lipped 

 Fistularina that have no spines on their operculum or preoperculum. 

 Their genera are probably as follows : — 



Teeth concealed by 

 the double lips, 

 which are large 

 and fleshy. 



' 1. Labrus, Linn. 



2. Gomphosus, Lac. 



3. Xericthys, Cuv. 



Muzzle not protractile. 

 Body not laterally com- 

 pressed. One dorsal. 



Mouth protractile. One 

 dorsal. 



Mouth not protractile. 

 Body laterally compres- 

 sed. Two dorsals. 



Teeth uncovered by f 4. Acanthurus, Bl. Spines arming some part 



the lips, which J Theutyes, Cuv. of body, 



are single. J 5. Scarus, Linn. No spinous armature on 



^ the body. 



By means of Xyrichthys we return among the Scombridse, and so 

 complete the circle of Fistularina, which is therefore a natural tribe. 



Let us now go back to the family Gobioidse, and by means of Gobius, 

 we can easily make the transition from the tribe Fistularina to the 

 Malacopterygian family Cyclopteridse, which forms part of the tribe 

 PLEURONECTINA, i. e. Malacopterygian fishes, which have never 

 their ventral fins abdominal. 



The families of Pleuronectina are probably as follow ; but they are 

 rather stirpes than families : 



2 M 



