Annals of the South African Museum, Volume 97South African Museum, 1985 - Natual history |
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Page 80
... differences in maximum size . Specimens in the T. nigrescens species - group attain a maximum SL of about 40 mm ( Nafpaktitis & Nafpaktitis 1969 ; Wisner 1976 ; Parin et al . 1977 ; Hulley 1984 , in press ) ; the value of 74 mm for M ...
... differences in maximum size . Specimens in the T. nigrescens species - group attain a maximum SL of about 40 mm ( Nafpaktitis & Nafpaktitis 1969 ; Wisner 1976 ; Parin et al . 1977 ; Hulley 1984 , in press ) ; the value of 74 mm for M ...
Page 81
... differences in photophore grouping and / or supra- and infracaudal gland structure . Gill - raker variation is then only interpreted in terms of population differences . This is applicable to both geographically continuous populations ...
... differences in photophore grouping and / or supra- and infracaudal gland structure . Gill - raker variation is then only interpreted in terms of population differences . This is applicable to both geographically continuous populations ...
Page 110
... differences that are probably sufficient to separate the species . As pointed out by Muir - Wood ( 1959 ) , D. wyvillei has a longer , more narrowly tapering ventral umbo , a longer , better - exposed symphytium and more strongly ...
... differences that are probably sufficient to separate the species . As pointed out by Muir - Wood ( 1959 ) , D. wyvillei has a longer , more narrowly tapering ventral umbo , a longer , better - exposed symphytium and more strongly ...
Contents
The Elandsfontein material | 31 |
The Zululand specimen | 39 |
Acknowledgements | 53 |
Copyright | |
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Common terms and phrases
50 m Complex abbreviations Annals anteriorly apelex author's name Avontuur Barnard Benguela body whorl brachial valve brachiopods calvus canines Cape Province Cape Town Carrington & Kensley Ciconia coast columella Concholepas conjoined valves crura cusp deltidial plates deposits depth described Description Shell Diaphus distal dorsal dune early Pleistocene Elandsfontein elongate fauna figures fossil Gastropoda genus Geronticus Gnathopod Haughton Hendey high sea-level hinge Holotype Hondeklip Zone Hottentot Hulley italics Kilburn Lampanyctus Langebaanweg lanternfishes length limnetes loop mandible margin material Megerlia mexicanus Mollusca Myctophidae Myctophum Nafpaktitis nigrescens Ocean outer lip paratypes parentheses pedicle pedicle valve photophore Pliocene posterior postnatal whorls present recorded references region ribs rounded Saldanha Bay scientific name sclerites sculpture separates Skurwerug slightly Smith socket ridges South African Museum species specific name specimens spiral lirae subheadings Synonymy Table Tankard tooth Triphoturus upper USNM valve interior ventral views of conjoined width Xenobrochus