Fishes . Fig. 517 —Common File fish, Stephanolepis hispidus (Linnseus). Virginia. first dcrsal has six or seven spines, and there are rough spinesin the pectoral. The teeth are bluntly conical. Spinacantlmsblennioides and 5. impcralis are found in the Eocene of MonteBolca. These are probably the nearest to the original ances-tor among known scleroderms. The Trunkfishes: Ostraciidx.—The group Ostracodermi con-tains the single family of Ostraciidce, the trunkfishes or cuck- Series Plectognathi 627 olds. In this group, the body is enveloped in a bony box,made of six-sided scutes connected by sutu
Fishes . Fig. 517 —Common File fish, Stephanolepis hispidus (Linnseus). Virginia. first dcrsal has six or seven spines, and there are rough spinesin the pectoral. The teeth are bluntly conical. Spinacantlmsblennioides and 5. impcralis are found in the Eocene of MonteBolca. These are probably the nearest to the original ances-tor among known scleroderms. The Trunkfishes: Ostraciidx.—The group Ostracodermi con-tains the single family of Ostraciidce, the trunkfishes or cuck- Series Plectognathi 627 olds. In this group, the body is enveloped in a bony box,made of six-sided scutes connected by sutures, leaving only. Fig. 518.—llorued , Cowfish, or Cuckold, Ladophnjs tricornis (Limiirus). Charlestoti, S. C. the jaws, fins and tail free. The spinous dorsal fin is whollywanting. There are no ventral fins, and the outer fins are
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