. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. SOUTHERN AFRICAN RAJIDAE (CHONDRICHTHYES, BATOIDEl) 29. d e Fig. 15. Intermediate proximal segments of the claspers. a. Rhinobatos annulatus; b. Bathyraja smithii; c. Raja clavata; d. Cruriraja parcomaculata; e. Anacanthobatis americanus. Scale 2,0 cm. B — basipterygium; b^, h^, bg — segments; /3 —beta cartilage; ax —axial cartilage. Axial and terminal groups The axial, dorsal marginal and ventral marginal cartilages are included in the axial group, but as it is the distal regions of th
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. SOUTHERN AFRICAN RAJIDAE (CHONDRICHTHYES, BATOIDEl) 29. d e Fig. 15. Intermediate proximal segments of the claspers. a. Rhinobatos annulatus; b. Bathyraja smithii; c. Raja clavata; d. Cruriraja parcomaculata; e. Anacanthobatis americanus. Scale 2,0 cm. B — basipterygium; b^, h^, bg — segments; /3 —beta cartilage; ax —axial cartilage. Axial and terminal groups The axial, dorsal marginal and ventral marginal cartilages are included in the axial group, but as it is the distal regions of these cartilages which are important, and since they extend into the terminal complex, they are described under this heading. The terminal group consists of three different types of cartilages: dorsal terminal cartilages, a series situated dorsally to the axial, to which some are joined; the ventral terminal cartilage, a single element which is ventrally situated and overlies the accessory terminals; the accessory terminal cartilages (Hulley 1966: fig. 3 G). The number of cartilages in the terminal group varies between seven and ten. Huber (1901) and White (1937) suggest that the terminal (accessory) structures are constant within large groups of elasmobranchs, and Ishiyama. 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
