Annals of the South African Museum, Volume 7, Part 2South African Museum, 1898 - Natural history |
From inside the book
Results 1-3 of 43
Page 100
... separated by narrow grooves . The terminations of these ridges at the carinal angle do not correspond strictly with the upper termina- tions of the ribs on the flank , but the ridges on the area are rather more numerous than these ...
... separated by narrow grooves . The terminations of these ridges at the carinal angle do not correspond strictly with the upper termina- tions of the ribs on the flank , but the ridges on the area are rather more numerous than these ...
Page 121
... separated by interspaces 3 mm . broad . They pass obliquely downwards when traced forwards . There is some variation shown in the relation of the anterior ribs to the succeeding posterior ones in the adult stage . Sometimes the first ...
... separated by interspaces 3 mm . broad . They pass obliquely downwards when traced forwards . There is some variation shown in the relation of the anterior ribs to the succeeding posterior ones in the adult stage . Sometimes the first ...
Page 165
... separated the shells described by him as Turbo atherstoni and T. baini . The differences which caused him to make the separation are in reality . due to changes in the nature of the ornamentation during successive stages of growth ; but ...
... separated the shells described by him as Turbo atherstoni and T. baini . The differences which caused him to make the separation are in reality . due to changes in the nature of the ornamentation during successive stages of growth ; but ...
Other editions - View all
Common terms and phrases
Acanthodiscus Ammonites angle anteriorly aperture Aptian Astarte atherstoni Sharpe baini Sharpe bank of Sunday's Belemnites carinal characters closely Coega Coega Valley collection comparison conocardiiformis convex costate Cutch d'Orb d'Orbigny delicate developed Dimensions Dunbrodie elongated Eriphyla escutcheon Exogyra fauna figured flank flattened fossils frontal genus Geol German East Africa Graaff-Reinet groove Hauterivian height herzogi Holcostephanus holubi inflated Jurassic keel Krauss last whorl left valve less Lower Cretaceous Lycett margin Marine Beds Müller narrow Neocomian Neumayr occur Oolitic Oomia beds ornamentation outline Pavlow Pecten posterior posteriorly railway relatively represent resemblance ribs ridges right valve Rogers and Schwarz sculpture shell similar South African Museum Sowerby species specimen spiral Stoliczka stowi strata Sunday's River surface suture Tate Tate's transverse Trigonia Trigonia ventricosa tubercles Uhlig Uitenhage beds Uitenhage Series uitenhagensis sp umbilical umbilicus umbo umbonal region upper W. T. Blanford whorl Zwartkop's River