. The Australian zoologist. Zoology; Zoology; Zoology. J. D. BELL, J. J. BURCHMORE and D. A. POLLARD Alimentary Tract Morphology The digestive tract in adult G. elevata is shown in Fig. 5. It is relatively long and typical of fishes with a predominantly herbivorous diet". The stomach is large and U-shaped with a muscular pyloric region. The intestine is relatively long and coiled, and there is a large but varying number of pyloric caeca (usually > 100). The small tricuspid incisors of G. elevata form a broad band, as in male G. tricuspidata (Stead, 1908), and are well adapted for teari
. The Australian zoologist. Zoology; Zoology; Zoology. J. D. BELL, J. J. BURCHMORE and D. A. POLLARD Alimentary Tract Morphology The digestive tract in adult G. elevata is shown in Fig. 5. It is relatively long and typical of fishes with a predominantly herbivorous diet". The stomach is large and U-shaped with a muscular pyloric region. The intestine is relatively long and coiled, and there is a large but varying number of pyloric caeca (usually > 100). The small tricuspid incisors of G. elevata form a broad band, as in male G. tricuspidata (Stead, 1908), and are well adapted for tearing off and dislodging encrusting flora and fauna. The teeth appear to have a similar serial replacement pattern to that of G. nigricans as described by Norris and Prescott (1959). The buccopharynx and tooth pattern of G. elevata is shown in Fig. jt b qa gr gf FIG. 5. Simplified diagram of the alimentary tract of G. elevata. a: anus, b: buccopharyngeal cavity, ga: gill arch, gf: gill filament, gr: gill raker, •: intestine, jt: jaw teeth, pc: pyloric caeca, p: peritoneal cavity, r: rectum, s: stomach. The mean relative gut lengths for the various size classes were as follows: adults ( ± ), juveniles ( ± ) and small juveniles ( ± ). The relationship of RGL to the amount of plant material in the diet is shown in Fig. 7. 400 Aust. Zool. 20(3). 1980. 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 Royal Zoological Society of New South Wales; Royal Zoological Society of New South Wales. Proceedings. [Sydney, Royal Zoological Society of New South Wales]
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1914
