Classification oj Teleostean Fishes. 85 



Apliredoderidge are precisely similar to them iti their anatomy, 

 and these two closely related families constitute the order 

 Salmopercse. 



Labyrinthici. 



The suborder Anabantoidei comprises the Luciocephalidae 

 and Anabantidge, the latter including the O-^phromenidge, 

 which I am unable to recognize even as a distinct family, 

 althougdi Boulenger has widely separated them from the 

 Anabantoids. 



Malacichthyes. 



The order Malacichthyes is equal to the family Icosteidr«, 

 i. e. Icosteus and Acrotus*, of very uncertain relationships. 



Chondrobrachii. 



This order comprises the Ateleopidae, a very remarkable 

 and isolated group of fishes. 



Percomorphi. 



In some members of this order the lower fork of the post- 

 temporal is very short {e. g. Acanthuridge), in others the 

 upper limb may be expanded and suturally united to the 

 skull (Agonidse, Trigiidse) ; further, the interspaces between 

 it and the lower limb may be filled in by osseous laminse, 

 so that the post-temporal may form an integral part of the 

 skull (e. g. Callionymus) . 



Of the suborders of the Percomorphi the Percoidei is by far 

 the largest, and its classification is a matter of some difficulty. 

 It is equivalent to Boulenger's Perciformes, after the exclu- 

 sion of the Berycoids and Osphromenidgej with the addition 

 of the Stroraateidse, Tetragonuridje, Carangidse, Rhachi- 

 centridoe, Coryphgenida?, Bramidse, Menida-, Percophiidge, 

 Ammodytidffi, Trachinidse, Charnpsoduntidce, Leptoscopidaj, 

 Uranoscopidffi, Para))ercida3, TrichoiiotidgB; Nototheniidie, 

 Callionymida?, and Agriopidse. 



Hitherto the indirect attachment of the pelvic bones to the 

 cieilhra lias usually been regarded as a primitive feature, but 

 it is difficult to see why this should always be so. It is 

 scarcely open to question that the ligamentous connexion 

 between the post-temporal and the epiotic in Synodus is 

 derived from a direct attachment, as seen in Aulopus. If the 

 pelvic fins can migrate backwards from a thoracic to a sub- 

 abdominal position by elongation of the pelvic bones, whicii 



* I have examined the type of Icichthys lockiiigtoni, -which is a species 

 of Centrolojyh'i-i, 



