. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. FAMILIES TRACHIPTERIDAE AND RADIICEPHALIDAE 21. Fig. 4. Trachipterus trachypterus (Gmelin, 1789). Uniform arrangement of tuber- cles along dorsal fin pterygiophores. (SAM-11894) seems to have the greatest body depth nearer the anus than the head, instead of just behind the head. According to Palmer (1961) T. trachypterus differs from T. arcticus in the dorsally curved tail and in having the greatest body depth immediately behind the head; in T. arcticus, the tail is straight and the greatest body dep
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. FAMILIES TRACHIPTERIDAE AND RADIICEPHALIDAE 21. Fig. 4. Trachipterus trachypterus (Gmelin, 1789). Uniform arrangement of tuber- cles along dorsal fin pterygiophores. (SAM-11894) seems to have the greatest body depth nearer the anus than the head, instead of just behind the head. According to Palmer (1961) T. trachypterus differs from T. arcticus in the dorsally curved tail and in having the greatest body depth immediately behind the head; in T. arcticus, the tail is straight and the greatest body depth is '| to \ of the way along its length, except in specimens of less than 300 mm'. The original description of Cepola trachyptera Gmelin, 1789, is inadequate to distinguish which species Gmelin was trying to describe: 'C capite declivi, maxilla utraque fornicata, pinnis aculeatis serratis scabris. Habitat in mari adriatico, linea laterali recta, squamarum serie simplici; an secundum Forsterum proprium genus?' {Cepola with downward-sloping head [ steep forehead], maxilla arched on either side, fins rough [with] saw-like prickles. Habitat in Adriatic Sea, lateral hne straight, scales in a single row; according to Forster it may belong in a genus of its own.) C. trachyptera was the third species of Cepola listed by Gmelin (1789: 1186- 1187); the first two (C. taenia and C rubescens) are considered synonyms of. 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 South African Museum. Cape Town : The Museum
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
