. Bulletin of the British Museum (Natural History). Zoology . CLUPEOIDS OF LACEPEDE, CUVIER & VALENCIENNES 137 87. Stolephorus commersonii Lacepede, 1803 = Stolephorus commersonii Lacepede, 1803 Stolephorus commersonii Lacepede, 1803, Hist. Nat. Poiss., 5: 381, 382, pi . 12, fig. 1 (on Com- merson notes and drawing ; ex Mauritius in ijjo fide Valenciennes 1848 : 47). Type material. No type material exists and there are no specimens in Paris that could have been examined by Lacepede. There are no specimens in the British Museum from the type locality (Mauritius), or even Madaga
. Bulletin of the British Museum (Natural History). Zoology . CLUPEOIDS OF LACEPEDE, CUVIER & VALENCIENNES 137 87. Stolephorus commersonii Lacepede, 1803 = Stolephorus commersonii Lacepede, 1803 Stolephorus commersonii Lacepede, 1803, Hist. Nat. Poiss., 5: 381, 382, pi . 12, fig. 1 (on Com- merson notes and drawing ; ex Mauritius in ijjo fide Valenciennes 1848 : 47). Type material. No type material exists and there are no specimens in Paris that could have been examined by Lacepede. There are no specimens in the British Museum from the type locality (Mauritius), or even Madagascar, which could be used for a neotype designation. The species is, however, badly in need of proper definition, and the following description, based on a fish from Tanzania, is intended to illustrate the species as understood by Weber & DeBeaufort (1913), Fowler (1941) and subsequent authors whose descriptions have omitted such essential features as the shapes of the posterior frontal fontanelles and the upper jaw bones, etc. Description. Based on a fish of 90-2 mm. , ex Pangani R. estuary, Tan- zania, coll. Merrett, in good condition, BMNH. 12, D hi 13, P i 12, V i 6, A hi 19, 19 -f 23, scutes 4. In percentages of standard length : body depth 22-1, head length 24-5, inter- orbital width 6-65 ; snout length 5-3, eye diameter 6-i, length of upper jaw 22-0, length of lower jaw 15-9 ; pectoral fin length 147, pelvic fin length 9-5, length of anal fin base 20-1 ; pre-dorsal distance 53-5, pre-pelvic distance 44-9, pre-anal distance 63-0. Body moderately compressed, its width a little less than half body depth, belly rounded in front of pelvic fins. Head a little longer than body depth ; inter- orbital greater than snout length, 3-7 times in head length and slightly greater than eye diameter. Posterior frontal fontanelles 2-5 mm. long, 1-95 mm. wide (at posterior end), lateral margins forming a sigmoid curve (Figure 13b). LTpper jaw with fine, e
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