XIII 



PHYLUM CHORDATA 



223 



This is a small sub-order, including the File-fishes, Globe-fishes, 

 Sun-fishes and Goffer-fishes (Fig. 880). 



FIG 880 Ostracion (Coffer-fish), br. ap. branchial aperture ; d.f. dorsal fin ; pct.f. pectoral 

 fin ; v.. f. ventral fin. (After Day.) 



Sub-order f. Lopliobmnchii. 



Teleostei having no pneumatic duct. The gills are not comb- 

 like, but have their filaments arranged in tufts (Fig. 881, B). The 



B 



FIG 881 Hippocampus (Sea-horse). In B the operculum is removed to show the gills, 

 'br. ap. branchial aperture ; brd. p. brood-pouch ; d. /. dorsal fin ; g. gills ; pet. f. pectoral fin. 

 (From Claus and Gunther.) 



