Annals of the South African Museum, Volumes 55-56The Museum., 1969 - Natural history |
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Page 162
... surface of disc and tail completely covered with fine , close - set spinules ; no enlarged thorns on disc or tail .. R. spinacidermis ( b ) Upper surface of disc and tail never completely covered with spinules ( except some juveniles ) ...
... surface of disc and tail completely covered with fine , close - set spinules ; no enlarged thorns on disc or tail .. R. spinacidermis ( b ) Upper surface of disc and tail never completely covered with spinules ( except some juveniles ) ...
Page 169
... surface of disc smooth , but lower surface with spinules on tip of snout and anterior edges of disc to about level of nostrils , and on internasal area . Adult specimens with 5-8 thorns around inner margin of orbit ; 1 median nuchal ...
... surface of disc smooth , but lower surface with spinules on tip of snout and anterior edges of disc to about level of nostrils , and on internasal area . Adult specimens with 5-8 thorns around inner margin of orbit ; 1 median nuchal ...
Page 201
... surface of the snout . In these forms , as previously mentioned , the flat anterior surface of the snout is rounded off at each side and longitudinal ridges are absent . In the second group the frontals are thickened to form a pair of ...
... surface of the snout . In these forms , as previously mentioned , the flat anterior surface of the snout is rounded off at each side and longitudinal ridges are absent . In the second group the frontals are thickened to form a pair of ...
Contents
Origin of the South African Clinidae | 105 |
Summary | 115 |
PENRITH M | 119 |
Copyright | |
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Common terms and phrases
Anteosaurus Barnard basal Blennioclinus Boonstra Bradysaurus Broom Bushmen Cape Point Cape Town Caudal fin Caudal peduncle clasper clingfishes Clinidae Clinus Clinus collected colour declivis dentary deposits dicynodonts dorsal fin Emydops False Bay fauna fin bases fishes fossils fourth dorsal spines frontal genera genus Gilchrist & Thompson Haughton head length holotype Hubbs interorbital intertidal Intromittent organ Jonkeria juvenile Lambert's Bay Langebaanweg Lateral line lateral view Lüderitzbucht Lystrosaurus mandible margins maxilla median membrane middle of vent Mouth nasal Nharo nostril notch orbits organ of male palatal paratype pareiasaurs Pavoclinus pelvic pores posterior premaxilla presphenoid Proc Raja region reptiles ridge rostral skull roof Smith South African Museum South West species specimens spiracles standard length superciliosus supraorbital tentacle surface of disc tail Tapinocephalus Tapinocephalus zone teeth therapsids thorns tip of snout Titanosuchus total length upper jaw Valenciennes vertebrates Vomer Zool