. Bulletin of the British Museum (Natural History). 66 P. K. TALWAR & P. J. P. WHITEHEAD In percentages of standard length: body depth 22-5 (20-0, 20-0), head length 277 (24-0, 26-0); snout length 8-3 (7-5, 7-4), eye diameter 8-3 (S-o, 7-8), post-orbital distance 9-9 (8-5, 87), length of upper jaw 9-9 (87, 97), length of lower jaw 147 (12-3, 13-1); pectoral fin length 167 (17-1, 15-8), pelvic fin length 137 (13-3, 14-5), length of anal base i8-6 (15-3, 14-5); pre-dorsal distance 49-0 (47-9, 48-5), pre-pelvic distance 52-9 (50-4, 49-5), pre-anal distance 78-4 (77-3, 75-0). Body fairly compr
. Bulletin of the British Museum (Natural History). 66 P. K. TALWAR & P. J. P. WHITEHEAD In percentages of standard length: body depth 22-5 (20-0, 20-0), head length 277 (24-0, 26-0); snout length 8-3 (7-5, 7-4), eye diameter 8-3 (S-o, 7-8), post-orbital distance 9-9 (8-5, 87), length of upper jaw 9-9 (87, 97), length of lower jaw 147 (12-3, 13-1); pectoral fin length 167 (17-1, 15-8), pelvic fin length 137 (13-3, 14-5), length of anal base i8-6 (15-3, 14-5); pre-dorsal distance 49-0 (47-9, 48-5), pre-pelvic distance 52-9 (50-4, 49-5), pre-anal distance 78-4 (77-3, 75-0). Body fairly compressed, its width almost 3 times in its depth, the latter a little less than head length; belly rounded, fully scaled but the scales underlain by 4 (Leiden) or i (BMNH) plate-Iike scutes bearing rudimentary lateral arms (fig. la, b), the scutes not reaching back to the main pelvic scute (which has normal lateral arms). Snout equal to or a little shorter than eye diameter. Jaws unequal, the lower projecting slightly. Upper jaw reaching to vertical from anterior eye border or anterior pupil margin, ventral expanded portion of maxilla beginning abruptly and not tapered smoothly into slender anterior limb of bone, the entire edge of the expanded portion finely denticulated (fig. 2); a single (posterior) supra-maxilla, the lower part of the expanded portion deeper and longer than the upper part [Harcngiila shape), its depth about \ eye diameter. Lower jaw rising fairly steeply in the first third of its length; 6-7 small conical teeth on either side of symphysis. A single row of small conical teeth on pre-maxillae, separated by a median diastema. Fine teeth on tongue, scattered on antero-median process of palatine and along outer edge of that Fig. 2. Dayella malabarica, upper and lower jaws, alizarin stained specimen, 47-3 mm , Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - co
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Keywords: ., 1973, boo, bookauthorbritishmuseumnaturalhistory, bookcentury1900
