Annals of the South African Museum, Volume 83The Museum, 1981 - Natual history |
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Page 286
... arise 4-5 prorsiradiate secondaries , frequently with an intercalated rib between bundles . There are about 37 ribs per half whorl , as well as two prominent parabolae . This species differs from O. baini in possessing fewer umbilical ...
... arise 4-5 prorsiradiate secondaries , frequently with an intercalated rib between bundles . There are about 37 ribs per half whorl , as well as two prominent parabolae . This species differs from O. baini in possessing fewer umbilical ...
Page 329
... arise bundles of 3-4 prorsiradiate secondary ribs which frequently bifurcate . On the adoral half of the outer whorl ( ? the body chamber ) , nearly every long rib bifurcates and has an adjacent intercalated rib high up on the flank ...
... arise bundles of 3-4 prorsiradiate secondary ribs which frequently bifurcate . On the adoral half of the outer whorl ( ? the body chamber ) , nearly every long rib bifurcates and has an adjacent intercalated rib high up on the flank ...
Page 348
... arise at the umbilical shoulder , although some may be intercalated half - way up the flank , and vary considerably in strength . With the appearance of intercalated ribs , the ventrolateral and umbilical tubercles frequently form long ...
... arise at the umbilical shoulder , although some may be intercalated half - way up the flank , and vary considerably in strength . With the appearance of intercalated ribs , the ventrolateral and umbilical tubercles frequently form long ...
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