Annals of the South African MuseumThe Museum, 1973 - Natural history |
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Page 83
... distribution ( Hulley 1966 : fig . 8 ) , both Raja and Rostroraja , which developed as shelf species from the boreal bathyrajid ancestors , penetrated the Mediterranean Subregion at the beginning of the Pleistocene glacial period ...
... distribution ( Hulley 1966 : fig . 8 ) , both Raja and Rostroraja , which developed as shelf species from the boreal bathyrajid ancestors , penetrated the Mediterranean Subregion at the beginning of the Pleistocene glacial period ...
Page 86
... distribution : these ancestral forms , i.e. Bathyraja , Dipturus , probably had their origin in some other region . In the Southern Hemisphere at least they were distributed in the area of the Cape sulcus ( Frakes & Crowell 1970 ) ...
... distribution : these ancestral forms , i.e. Bathyraja , Dipturus , probably had their origin in some other region . In the Southern Hemisphere at least they were distributed in the area of the Cape sulcus ( Frakes & Crowell 1970 ) ...
Page 87
... distribution of the dominant elements of the intertidal flora and fauna of South Africa has been summarized by Stephenson ( 1939 , 1944 , 1948 ) , who , on the basis of surveys of rocky intertidal shores , recognized three faunal ...
... distribution of the dominant elements of the intertidal flora and fauna of South Africa has been summarized by Stephenson ( 1939 , 1944 , 1948 ) , who , on the basis of surveys of rocky intertidal shores , recognized three faunal ...
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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