Annals of the South African MuseumThe Museum, 1973 - Natural history |
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Page 42
... shape to the accessory terminal in Rhinoraja odai and Rhinoraja longicauda ( Ishiyama 1958 : fig . 11 ) . In all ... shape . Furthermore , Ishiyama ( 1958 ) has grouped the accessory terminal 1 according to the shape of the distal region ...
... shape to the accessory terminal in Rhinoraja odai and Rhinoraja longicauda ( Ishiyama 1958 : fig . 11 ) . In all ... shape . Furthermore , Ishiyama ( 1958 ) has grouped the accessory terminal 1 according to the shape of the distal region ...
Page 57
... shape and extension of the anterior and 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 ...
... shape and extension of the anterior and 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 ...
Page 76
... shape , which is altered by the degree of development of the preorbital processes , may be of importance . The preorbital process is well developed only in Raja and Rostroraja ( Figs 51 ; 52 A ) , a character which these subgenera share ...
... shape , which is altered by the degree of development of the preorbital processes , may be of importance . The preorbital process is well developed only in Raja and Rostroraja ( Figs 51 ; 52 A ) , a character which these subgenera share ...
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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