. The Australian zoologist. Zoology; Zoology; Zoology. 254 ICHTHYOLOGICAL NOTES eye. Pectoral short and rounded, caudal rounded. Chains of light-centred spots extend from back to belly in about eleven transverse rows. There are still traces of the light areas on the nape, below the front and back of the spinous dorsal, over caudal peduncle and above anal fin. Suprascapula covered with scales. Fourth dorsal spine longest, mm. This form grows to at least 2:J- inches in length, or 5 inches if it be the Silver Scat of the Brisbane River mentioned by Jensen (Monthly J. Aquar. Soc. N. S. Wales,
. The Australian zoologist. Zoology; Zoology; Zoology. 254 ICHTHYOLOGICAL NOTES eye. Pectoral short and rounded, caudal rounded. Chains of light-centred spots extend from back to belly in about eleven transverse rows. There are still traces of the light areas on the nape, below the front and back of the spinous dorsal, over caudal peduncle and above anal fin. Suprascapula covered with scales. Fourth dorsal spine longest, mm. This form grows to at least 2:J- inches in length, or 5 inches if it be the Silver Scat of the Brisbane River mentioned by Jensen (Monthly J. Aquar. Soc. N. S. Wales, iv, Aug. 1954, p. 5). It evidently ranges from Indonesia and the Gulf of Carpentaria, down the eastern coast of Queensland to New South Wales, rarely as far south as Sydney. The form here figured from Brisbane River differs from the Tholichthys stage I figurea from Port Denison (Rec. Aust. Mus. xvi, 1928, p. 217, pi. xviii, fig. 2) in having caudal rounded, scales more numerous and in fin- formulae. I there listed references to other figures of young "; most of which show the smaller larval and Tholichthys stages. To that list I now add:— Blanco & Villadolid (Philip. J. Fisher, i, 1951, p. SO, fig. 19) who illus- trate a mm. juvenile argus from Luzon, and Giltay (Mem. Mus. Roy. H. N. Belg. v, 3, 1933, p. 69, fig. 20), a Tholichthys from Triton Bay, New Guinea. There are, however, a few illustrations of forms comparable with my Queensland ones in aquarium literature (notably Innes, 1935). I have not seen Stoye's 1932 figure quoted by Myers, 1936. Weber's figure (Siboga Exped. Monogr. lvii, 1913, pi. x, fig. 5) of a 32 mm. juvenile shows large spots like adult argus and is evidently of a different species from my 33 mm. one. Thanks to Mr. J. Henry, Curator of the Macleay Museum, University of Sydney, I have been able to examine Macleay's specimens which were the basis of his Darwin record of " Scatophagies tetracanthus," a species nowada
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1914
