Annals of the South African MuseumThe Museum, 1973 - Natural history |
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Page 86
... region did not vary during the Pleistocene . This is supported by Cox ( 1927 : 18 ) , who states for Mollusca that ' there is no evidence for the invasion of the area by colder water forms in Pleistocene times ' . The East African region ...
... region did not vary during the Pleistocene . This is supported by Cox ( 1927 : 18 ) , who states for Mollusca that ' there is no evidence for the invasion of the area by colder water forms in Pleistocene times ' . The East African region ...
Page 87
... region , as defined by Barnard ( 1925 ) has been used ; that is , the subcontinent south of the fifteenth parallel , extending from about Moçâmedes in southern Angola on the west coast , to north of the Zambezi River mouth in Moçambique ...
... region , as defined by Barnard ( 1925 ) has been used ; that is , the subcontinent south of the fifteenth parallel , extending from about Moçâmedes in southern Angola on the west coast , to north of the Zambezi River mouth in Moçambique ...
Page 92
... region , but may be found in shallower depths in more southerly latitudes . Temperatures at 200 metres in the tropical region vary from 11,6 ° C to 15,75 ° C ( Poll 1951 ) . From Table 4 it would appear that for depths greater than 200 ...
... region , but may be found in shallower depths in more southerly latitudes . Temperatures at 200 metres in the tropical region vary from 11,6 ° C to 15,75 ° C ( Poll 1951 ) . From Table 4 it would appear that for depths greater than 200 ...
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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