Annals of the South African Museum, Volume 28South African Museum, 1932 - Natual history |
From inside the book
Results 1-3 of 34
Page 215
... spiral ribs and transverse riblets . In front of the middle the carina is accentuated by a strong , rounded , spiral rib . Posterior to the carinal rib , on the flattened part of the whorls , are five weaker spiral ribs separated by ...
... spiral ribs and transverse riblets . In front of the middle the carina is accentuated by a strong , rounded , spiral rib . Posterior to the carinal rib , on the flattened part of the whorls , are five weaker spiral ribs separated by ...
Page 223
... spiral ribs ; finer spiral riblets are intercalated between the principal spiral ribs . On all the whorls there are numerous fine , rather sinuous , transverse riblets , or promi- nent growth lines . Remarks . - Meek formed the section ...
... spiral ribs ; finer spiral riblets are intercalated between the principal spiral ribs . On all the whorls there are numerous fine , rather sinuous , transverse riblets , or promi- nent growth lines . Remarks . - Meek formed the section ...
Page 224
... spiral ribs appear , one between each pair of principal spiral ribs . There are in addition fine growth and spiral lines forming a network . Remarks . This species appears to have the form and ornament of Siphonaria , but the absence of ...
... spiral ribs appear , one between each pair of principal spiral ribs . There are in addition fine growth and spiral lines forming a network . Remarks . This species appears to have the form and ornament of Siphonaria , but the absence of ...
Other editions - View all
Common terms and phrases
acetabulum acromion Albian angle anteriorly Anthodon aperture articulation articulatory surface Baily Beds bone Boonstra border Brachypareia rogersi Bradysaurus baini Broom capensis carina clavicle cleithrum concave convex coracoidal coracoidal plate Cretaceous Description.-Shell digit distal dorsal view edge elongate Embrithosaurus Equus facet fairly Fauna femur fibula figs figured foramen forms fossa Fossils Gastropoda Genus Geol girdle glenoid Glossopteris groove Haughton Hoepen holotype humerus iliac ilium internal trochanter ischial ischium Lamellibranchia left valve median moderately muscles narrow Neithea Nochelesaurus oblique ornamentation outer Pareiasaurian Pareiasaurus Pareiasuchus pelvis phalangeal Pondoland postaxial posterior posteriorly preaxial Propappus proximal pubic radial Rennie ribs ridge right valve rounded S.A. Mus scapula schwarzi seeleyi Senonian shaft shell skull slightly South African Museum Spath species specimen spiral splenial Stoliczka strong suture symphysis Tapinocephalus tarsal teeth TEXT-FIG tibia transverse tubercles Uitenhage ulna umbo umbones upper ventral margin width Woods XXVIII Zululand