Annals of the South African Museum, Volume 83The Museum, 1981 - Natual history |
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Page 155
... diameter , H = height , Uo outer umbilical diameter ( between umbilical bullae ) , Ui = inner umbilical diameter ( between umbilical seams ) , Wi intercostal width . All measurements are given in millimetres , and dimensions , as a ...
... diameter , H = height , Uo outer umbilical diameter ( between umbilical bullae ) , Ui = inner umbilical diameter ( between umbilical seams ) , Wi intercostal width . All measurements are given in millimetres , and dimensions , as a ...
Page 231
... diameter there are 14 secondary ribs per 4 bullae . A prominent deep parabola is evident at a diameter corresponding to about 130 mm . There seems little doubt that this example represents merely a larger growth stage than that ...
... diameter there are 14 secondary ribs per 4 bullae . A prominent deep parabola is evident at a diameter corresponding to about 130 mm . There seems little doubt that this example represents merely a larger growth stage than that ...
Page 267
... Diameter ( mm ) 300 Fig . 119. Plot showing increase in rib density with ontogeny , and between dimorphs , in O. b . baini ( Sharpe ) . commonly with an intercalated rib between bundles . At this stage , the macro- conch is , therefore ...
... Diameter ( mm ) 300 Fig . 119. Plot showing increase in rib density with ontogeny , and between dimorphs , in O. b . baini ( Sharpe ) . commonly with an intercalated rib between bundles . At this stage , the macro- conch is , therefore ...
Contents
DECAPOD AND ISOPOD CRUSTACEANS FROM THE WEST COAST | 14 |
Zoogeographic discussion | 29 |
INTRODUCTION | 32 |
Copyright | |
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Common terms and phrases
abbreviated Africa Ammonites Amphipoda antenna Astieria atherstoni Sharpe author's name baini baini baini Sharpe Barnard Baumberger Besairie bicuspidata body chamber Böse Broom Bryden Cape Province Cape Town carapace Coxa Crustacea Decapoda dentary diameter Dicynodon Diictodon dimorphism distal dorsal fauna figures genera genus gnathopod Hauterivian holotype Hout Bay Imlay inflated inner whorls intercalated ribs Kensley Kingoria Kitchin lateral views length lobe macroconch male margin material Maxilla Maxilliped Olcostephanus Olcostephanus Oudenodon outer whorl ovig parabolae Paramelita paratypes peduncle Peponocephala electra Pereopod peristome Pleopod posterior primary ribs prorsiradiate secondaries recorded ribs between bundles Rogersites rostrum Seamount secondary ribs segment setae South African Museum Spath species spines spinules Sternophysinx SUID-AFRIKAANSE MUSEUM Sundays River Sundays River Formation synonym terminal Type specimen Type specimen Skull Uitenhage umbilical bullae umbilical seam umbilical shoulder umbilical tubercles umbilical walls umbilicus Upper Valanginian uropod Valanginian Vema venter ventral views whorl section