Annals of the South African Museum, Volume 52The Museum, 1969 - Natural history |
From inside the book
Results 1-3 of 18
Page 131
... Ribs . The Durban dolphin had 16 pairs of ribs , two of which were free : according to Fraser ( 1950 ) , the Atlantide specimen had 15 pairs of ribs , one being free , and the Arari dolphins were recorded as having 15 to 16 pairs , one ...
... Ribs . The Durban dolphin had 16 pairs of ribs , two of which were free : according to Fraser ( 1950 ) , the Atlantide specimen had 15 pairs of ribs , one being free , and the Arari dolphins were recorded as having 15 to 16 pairs , one ...
Page 195
... ribs on 1st whorl , crossed by 4 spiral lirae . 2nd whorl with 25-30 axial ribs , 4 main lirae , very fine intermediate lirae starting between major ones . 30-35 ribs on 3rd whorl , 6–7 lirae . 4th whorl with about 28 axial ribs ...
... ribs on 1st whorl , crossed by 4 spiral lirae . 2nd whorl with 25-30 axial ribs , 4 main lirae , very fine intermediate lirae starting between major ones . 30-35 ribs on 3rd whorl , 6–7 lirae . 4th whorl with about 28 axial ribs ...
Page 208
... ribs more prominent than concentric lines . Anterior 7 or 8 ribs strong , increasing in thickness ventrally . Posterior 6 or 7 radial ribs similarly prominent , the largest forming the posterior ridge . Where concentric ridges cross ...
... ribs more prominent than concentric lines . Anterior 7 or 8 ribs strong , increasing in thickness ventrally . Posterior 6 or 7 radial ribs similarly prominent , the largest forming the posterior ridge . Where concentric ridges cross ...
Contents
THE TUNAS OF THE GENUS THUNNUS IN SOUTH AFRICAN | 3 |
Calappa | 8 |
Distribution and migrations | 14 |
Copyright | |
10 other sections not shown
Other editions - View all
Common terms and phrases
Achaeus adult Agulhas Agulhas Current alalunga albacares animals antennal Antidorcas Arari dolphins assemblage Atlantic Atlantide dolphin axial Barnard bones Cape Town capensis carapace carapace length carpus cartilage caudal chela clasper coast comparative dactyl Decapoda distal dolphin dorsal Durban Durban dolphin ecdysis Elandsfontein Family females Fish fossil Fraser frontalis G PED genus groove haughtoni Hendey Holotype horn cores Indian Ocean intermoult periods lalandii lateral lirae lobes M₁ maccoyii males mandible margin material Melkbos miraletus moulted n.sp obesus ocellifera outer lip ovig pereiopods Pleistocene pleopod posterior present species range recorded Redunca region ribs ridge rock lobsters rogersi rostrum sculpture segment shell skull Slangkop slightly snout South African Museum specimens spermatophoric spines spinules Station BRU Stenella SUID-AFRIKAANSE MUSEUM surface Swartklip Syncerus TABLE teeth temperature Thunnus tooth Transgression complex transverse tubercles tuna valve ventral vertebrae whorl width Zool ZOOLOGICAL NOMENCLATURE