Annals of the South African MuseumThe Museum, 1973 - Natural history |
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Page 57
... posterior fontanelles . However , Heintz ( 1962 ) found that the cartilaginous neurocranium could be modified by external factors , and noted differences only in the anterior fontanelle , orbital and otic regions of the neurocrania of ...
... posterior fontanelles . However , Heintz ( 1962 ) found that the cartilaginous neurocranium could be modified by external factors , and noted differences only in the anterior fontanelle , orbital and otic regions of the neurocrania of ...
Page 65
... posterior fontanelle should therefore be correctly termed the posterior supra- cranial fontanelle ( El - Tourbi & Hamdy 1959 ; Hamdy 1960 ) . In Rhinobatos halavi and Rhinobatos productus ( Daniel 1934 : fig . 62 ) , the anterior ...
... posterior fontanelle should therefore be correctly termed the posterior supra- cranial fontanelle ( El - Tourbi & Hamdy 1959 ; Hamdy 1960 ) . In Rhinobatos halavi and Rhinobatos productus ( Daniel 1934 : fig . 62 ) , the anterior ...
Page 66
... posterior margin . In Raja radiata ( Fig . 52 E ) it is broadly obovate , and in R. robertsi ( Fig . 52 D ) ellipsoid with a truncate anterior margin . The fontanelle in Raja spinacidermis ( Fig . 54 E ) is reduced and extends only for ...
... posterior margin . In Raja radiata ( Fig . 52 E ) it is broadly obovate , and in R. robertsi ( Fig . 52 D ) ellipsoid with a truncate anterior margin . The fontanelle in Raja spinacidermis ( Fig . 54 E ) is reduced and extends only for ...
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Common terms and phrases
a.tr-accessory terminal accessory terminal Amblyraja Anacanthobatis americanus ax-axial axial cartilage Bathyraja smithii Fig Bigelow & Schroeder Bonde & Swart Cape Point Cartilages of right cavity clasper glans clasper structure cleft Cruriraja parcomaculata Cruriraja triangularis d.tr-dorsal terminal dermal denticles developed Dipturus distal distal end distribution dorsal lobe dorsal terminal dorsal terminal cartilages elongate fontanelle foramen formed genus genus Cruriraja glans Hulley iliac regions Ishiyama & Hubbs Leigh-Sharpe leopardus Leucoraja metres mg d Myliobatis cervus nasal capsules neurocranium outer lateral margin pecten pelvic girdle posterior prepelvic processes proximal pseudorhipidion pseudosiphon Raja caudaspinosa Raja clavata Raja doutrei Raja miraletus Raja pullopunctata Raja radiata Raja wallacei Rajella Rajidae Rajoidea ravidula Rhinobatidae Rhinobatos annulatus Rhinobatos halavi Rhinoraja rhipidion robertsi rostral rostral cartilage Rostroraja Scale 2,0 cm sentinel southern African Rajidae southern African region species Raja spike springeri Stehmann stenorhynchus subgenus subgenus Raja temperature terminal cartilage ventral terminal cartilage view of right wallacei Fig