. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Fig. 12. Raja robertsi. A: rostral bar and rostral appendices. B: external view of right clasper from the dorsal side. ap—apopyle; 'ps' —'pseudosiphon5. In tooth count and general coloration, R. robertsi falls close to R. badia caught in 1270 fathoms in the Gulf of Panama (Garman, 1899). However, R. badia belongs to the heavily spined sub-group (Berg, 1911 considers it to be a possible synonym of R. hyperborea (Bigelow & Schroeder, 1953)) and therefore differs in the spination of the disc. This s
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Fig. 12. Raja robertsi. A: rostral bar and rostral appendices. B: external view of right clasper from the dorsal side. ap—apopyle; 'ps' —'pseudosiphon5. In tooth count and general coloration, R. robertsi falls close to R. badia caught in 1270 fathoms in the Gulf of Panama (Garman, 1899). However, R. badia belongs to the heavily spined sub-group (Berg, 1911 considers it to be a possible synonym of R. hyperborea (Bigelow & Schroeder, 1953)) and therefore differs in the spination of the disc. This species has been named in honour of Mr. J. Douglas Roberts, who by his kind generosity, made the study of the Walther Herwig material in Hamburg Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original South African Museum. Cape Town : The Museum
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
