Annals of the South African Museum, Volume 65The Museum, 1974 - Natual history |
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Page 192
... ventral surface . Cross - section The ventral surface of the ossicone is normally distinctly more convex than the dorsal surface , especially in the proximal portion . Torsion Some sivatheriine ossicones are almost straight , but ...
... ventral surface . Cross - section The ventral surface of the ossicone is normally distinctly more convex than the dorsal surface , especially in the proximal portion . Torsion Some sivatheriine ossicones are almost straight , but ...
Page 362
... ventral margin of the basipterygoid process ( Fig . 1 , BPTP ) . Between the keeled posterior part of the parasphenoid rostrum ( Parring- ton's ( 1946 ) ' ridge on the processus cultriformis ' ) and the closely applied median ventral ...
... ventral margin of the basipterygoid process ( Fig . 1 , BPTP ) . Between the keeled posterior part of the parasphenoid rostrum ( Parring- ton's ( 1946 ) ' ridge on the processus cultriformis ' ) and the closely applied median ventral ...
Page 439
... ventral ampullae . The latter have a horizontal crescentic plate , as well as a medio - vertical plate , which forms part of the wall of the ventro - medial . The posterior ventral lamellae project into the midgut in the form of two ...
... ventral ampullae . The latter have a horizontal crescentic plate , as well as a medio - vertical plate , which forms part of the wall of the ventro - medial . The posterior ventral lamellae project into the midgut in the form of two ...
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Common terms and phrases
acrae Amphipoda animals antenna basal beach bone braincase Brak River canal Cape Town capensis Catalogue number coast colony reaching coxa cynodonts dentary distal Distribution epipterygoid equinus estuaries EW MW LW flagellum foramen fossil gnathopod groove holotype horn cores hydranth hydrothecae infertile colony Inhaca INSV K. H. Barnard Klasies Klein Brak lateral length leucophaeus lobe lower LW NW EW mandible margin material maxillary medial Millard Miotragocerus molar MW LW NW Nelson Bay nematocysts niger niger subspp NW EW MW ossicones outer palp pellets pereiopods phosphate phosphorite plate pleon segment pleonal Ponta Torres postcanine posterior posteriorly postero-distally prootic pterygoid quadrate quagga ramus Records Remarks on acquisition ridge Sand SCD Santa Carolina setae setose skull South Africa South African Museum species specimens spines Stebbing surface Swartklip teeth telson tentacles Thrinaxodon tooth Tylos granulatus uropod Velddrif ventral Zool