. Bulletin of the British Museum (Natural History), Geology. FISHES OF THE TRIASSIC 275 Rostral bordering anterior edge of nostril. Postrostral present. Opercular series moderately oblique. Subopercular and branchiostegal divided by a straight suture. Antopercular may or may not be present. A single suborbital present. Teeth conical and sharply pointed. Lower jaw stout and straight. Body fusiform. Pectoral girdle large and ornamented with strong ridges. Scales rhombic to leaf-shaped, unornamented. Fin-rays with large fulcra. Pectoral fin-rays stout, jointed distally or not at all, other fin-ra
. Bulletin of the British Museum (Natural History), Geology. FISHES OF THE TRIASSIC 275 Rostral bordering anterior edge of nostril. Postrostral present. Opercular series moderately oblique. Subopercular and branchiostegal divided by a straight suture. Antopercular may or may not be present. A single suborbital present. Teeth conical and sharply pointed. Lower jaw stout and straight. Body fusiform. Pectoral girdle large and ornamented with strong ridges. Scales rhombic to leaf-shaped, unornamented. Fin-rays with large fulcra. Pectoral fin-rays stout, jointed distally or not at all, other fin-rays with regular jointing. Caudal fin hemiheterocercal and equilobate. Type species. Helichthys hrowni Broom. Helichthys elegans Brough (Figs 21-22) 1931 Helichthys elegans Brough: 248-252, text-figs 4-5, pi. 2, figs 1-2. Horizon and locality. Scythian. Lower Cynognathus zone of the Karroo Series at Bekker's Kraal, Rouxville, Orange Free State. Diagnosis. As in Brough (1931 : 248). Only one alteration need be made to. Clav an Fig. 21. Helichthys elegans Brough. Restoration of skull and pectoral girdle, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)
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