SYNOPSIS OF THE ARRANGEMENT OF FISHES. 183 



3. Sub-family OPHisoMiNiE. — Anguilliform, compressed; 



ventrals of one ray. 



Ophisomus.* Dorsal rays entirely spinous. 



4. Sub-family Ciuribarbin^. — Lower jaw longer than the 



upper. 



CiRRiBARBUs. Head and mouth with numerous cirri. 



5. Sub-family OpistognathiNuE. — Maxillaries large, greatly 



prolonged behind. 



Opistognathus. Head very obtuse ; ventrals of three rays. 



Family 2. GOBID^. 

 Ventral fins of many rays either united or distinct ; head 



depressed. 



1 . Sub-family Gobiakje. — Ventral fins united. 



GoBius. Dorsal fins two ; caudal fin rounded. 

 Gobileptes. Caudal lanceolate ; scales large. 



Ognichodes. Body lengthened ; dorsal fin single ; caudal 

 rounded. 



PsiLosoMus. Body riband- shaped ; dorsal, caudal, and anal 

 united. 



ScARTELAOS. Noscales; dorsals two; caudal large, lanceolate, 

 distinct. 



Periopthalmus. Covered with scales ; pectorals pedun- 

 culated; ventral fins sometimes cleft. 



2. Sub-family Callionymix^ — Head and body broad ; 



ventrals very large, distinct, posterior to the pectorals. 



Callionymus. Without scales ; aperture spiraculated. 



Platypterus. Scales large ; branchial aperture wide. 



Trichonotus. Body lengthened; dorsal fin single, the two 

 first rays bearing long setce. 



3. Sub-family Eleotrinje. — Ventral fins distinct 

 Eleotris. Ventral fins distinct at the base ; resembles Gobius. 

 Asteropterys. The first dorsal, and the ventral fins very long. 



* These three last genera appear to represent sub-families. 



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