Annals of the South African Museum, Volume 83The Museum, 1981 - Natual history |
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Page 193
... shoulder . Primary ribs begin at , or close to , the umbilical seam and pass strongly backwards ( rursiradiate ) to the umbilical shoulder where they terminate in small but prominent umbilical bullae , of which there are about 20 on the ...
... shoulder . Primary ribs begin at , or close to , the umbilical seam and pass strongly backwards ( rursiradiate ) to the umbilical shoulder where they terminate in small but prominent umbilical bullae , of which there are about 20 on the ...
Page 325
... shoulder and giving rise to 4-5 fine , prorsiradiate secondaries . There is commonly 3-4 intercalated ribs between bundles . Parabolae seem to be lacking . This is a finely ribbed species of the astierianus plexus which was compared ...
... shoulder and giving rise to 4-5 fine , prorsiradiate secondaries . There is commonly 3-4 intercalated ribs between bundles . Parabolae seem to be lacking . This is a finely ribbed species of the astierianus plexus which was compared ...
Page 348
... 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 spines . These ...
... 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 spines . These ...
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