Annals of the South African Museum, Volume 52The Museum, 1969 - Natural history |
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Page 197
... shell in possessing a cancellate sculpture , and two strong spiral lirae per whorl . T. sperata ( Cossman ) of the east coast has a much longer anterior canal ; this , and a nodulose axial sculpture , separates it from the present shell ...
... shell in possessing a cancellate sculpture , and two strong spiral lirae per whorl . T. sperata ( Cossman ) of the east coast has a much longer anterior canal ; this , and a nodulose axial sculpture , separates it from the present shell ...
Page 203
... shell , with a more obvious spire and with a better developed protoconch . The following measurements indicate the relative differences in height of shells of similar size of the two species : C. helicoidea D. 27.0 mm A. 14.0 mm C ...
... shell , with a more obvious spire and with a better developed protoconch . The following measurements indicate the relative differences in height of shells of similar size of the two species : C. helicoidea D. 27.0 mm A. 14.0 mm C ...
Page 207
South African Museum. young stages , older shell being obviously different . The marginal outline is very similar , the foramen is in the anterior portion of the shell in both species , and the sculpturing is similar . There are ...
South African Museum. young stages , older shell being obviously different . The marginal outline is very similar , the foramen is in the anterior portion of the shell in both species , and the sculpturing is similar . There are ...
Contents
THE TUNAS OF THE GENUS THUNNUS IN SOUTH AFRICAN | 3 |
Calappa | 8 |
Distribution and migrations | 14 |
Copyright | |
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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