. b Text-fig. 6. Palatine teeth of Anotopteras pharao: a, right palatine of a specimen 100 mm. in standard length ( x 6-5); b and c diagramatic representations of the palatine dentitionsof (6, x 1 ;c, x 1-5). In b and c the functional teeth are shown in black: the moderately developed replacement teeth are cross hatched; the soft, relatively undeveloped replacement teeth are dotted. Compared with the type specimen of Engnathosaurus vorax, the proportions of the different parts of the head of the whole fish are as follows. (These figures are in hundredths
. b Text-fig. 6. Palatine teeth of Anotopteras pharao: a, right palatine of a specimen 100 mm. in standard length ( x 6-5); b and c diagramatic representations of the palatine dentitionsof (6, x 1 ;c, x 1-5). In b and c the functional teeth are shown in black: the moderately developed replacement teeth are cross hatched; the soft, relatively undeveloped replacement teeth are dotted. Compared with the type specimen of Engnathosaurus vorax, the proportions of the different parts of the head of the whole fish are as follows. (These figures are in hundredths of the head length, those for the type coming first, followed in brackets by those of the Discovery specimen) : Length of head 150 (24) mm. Proportions per cent: length of snout 59-3 (58-3), width of bony interorbital 5-3 (67), horizontal diameter of bony orbit 10-3 (13-3); postorbital length 307 (27-1); length of mandible 74-0 (70-8). The palatine dentition of an individual from Madeira of standard length 278 mm. is shown in Text- fig. 6c. There are six completely erect, functional teeth, together with two moderately ossified, obliquely set teeth, one on the left palatine between the first and second upright teeth, the other situated towards the posterior end of the right palatine. Opposite the latter tooth is a fairly well-ossified recumbent tooth, together with a soft replacement tooth. The tooth pattern suggests that, as the fish grows, the complement of these stabbing palatine teeth increases, probably to between eight and ten.
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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
