232 tkachinidjE. 



1. Leptoscopus macropygus. 



Uraiioscopus macropvgos, Richards. Voi/. Ereb. ^- Terr. Ichthyul. p. 55. 



pi. 33. f. 4-6. 

 Leptoscopus macropygus, Gill, I. c. 



D. 31. A. 36. L. lat. 86 (43). 



The scales of the lateral line twice as large as those of the ad- 

 joining series, each corresponding to two transverse series. The 

 upper half of the head and body ohve, mottled with brown ; lateral 

 line brown. 



Port Jackson. 



a. Fine specimen, and type of the species. From the Haslar Col- 

 lection. 



Second Group. TRACHININAt. 



Eyes more or less lateral. Head not cuirassed. Lateral line con- 

 tinuous. Intermaxillary without larger tooth on its posterior portion. 



Synopsis of the Genera. 



* Body with scales. 



Cleft of the mouth very obUque, wide. Two dorsals; 



van trals jugular. Palatiue teeth 6. Trachinus. 



One dorsal, more or less continuous ; ventral s a httle 

 before the pectorals. Canine teeth in the jaws ; no 

 palatiue teeth 7. Percis. 



Cleft of the mouth slightly obliqu^e. Two dorsals ; ven- 

 trals jugular, with one spine and five soft rays. Vo- 

 merine teeth 8. Aphritis. 



Muciferous system of the head well developed. Ventrals 



thoracic. No palatine teeth 9. Sillaoo. 



Two dorsals ; ventrals jugidar ; no teeth at all on the 



palate 10. Eleginus. 



Ventral with one spine and six soft rays ; teeth cardiform 11. Epicopus. 



Cleft of the mouth horizontal, with the lower jaw very 

 prominent. Two dorsals ; ventrals jugular. Pala- 

 tiue teeth ; canines very strong 12. Percopjiis. 



** Body without scales. 



Snout very large, spatuliform 13. Ch^enicutuys. 



Snout short ; bones of the head without externally visible 



armature 14. Boviciith vs. 



Snout short. Prseorbital and prseoperculum armed 15. Tuiciiodon. 



t Homalopomus trowbridgii, Girard, Proc. Acad. Nat. Sc. Philad., appears to 

 belong to this group. — Western coasts of the United States. 



