Annals of the South African Museum, Volume 92The Museum, 1984 - Natual history |
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Page 134
... wide or moderate umbilicus . The whorl section varies from subquadrate to high subrectangular with a roughly fastigiate venter . There is a distinct median keel bordered on either side by a shallow groove without distinct lateral keels ...
... wide or moderate umbilicus . The whorl section varies from subquadrate to high subrectangular with a roughly fastigiate venter . There is a distinct median keel bordered on either side by a shallow groove without distinct lateral keels ...
Page 315
... wide and about as wide behind . as in front ; posterior margin deeply and angularly emarginate on dorsal side , ventrally only slightly so ; dorsally somewhat shiny , microscopically reticulate and light reddish brown . No ocelli ...
... wide and about as wide behind . as in front ; posterior margin deeply and angularly emarginate on dorsal side , ventrally only slightly so ; dorsally somewhat shiny , microscopically reticulate and light reddish brown . No ocelli ...
Page 346
... wide , irregular reticulation , particularly on the anterior part of the pronotum . Ecdysial suture distinct in most segments , except perhaps last two or three . Tenth abdominal segment almost tubular , about as long as ninth and ...
... wide , irregular reticulation , particularly on the anterior part of the pronotum . Ecdysial suture distinct in most segments , except perhaps last two or three . Tenth abdominal segment almost tubular , about as long as ninth and ...
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Common terms and phrases
abdominal segments adult Africa Ammonites antennae apex arthropods Barnard beetles besairiei brown brownish Cape Natal Cape Point Cape Town carcasses cerci Collected Collignon colour Coniacian d'Orbigny December dorsal view dravidicum Kossmat eggs elytra Family fauna genus Grossouvre hatched Head henniei Holotype inner whorls Labium large numbers larvae left lateral view lobe Locality long setae Lucia Formation mandible margae margin Matsumoto maxilla mesal mesothoracic Middle Coniacian Mollusca natalensis nymphs ocelli ornament outer whorls oval pairs of legs pale Paratype Peroniceras Peroniceras Peroniceras Zuluiceras piceous posterior Prionocycloceras pronotum Protexanites Pupa R.S. Africana R.S. Pieter Faure radula radula slide reddish Redtenbacher ribs River SAN DIEGO Santonian setae Shell shiny side South African Museum Sowerby spines spiracles subfamily subtricarinatum suture suture-line Syntypes text-fig Tomlin tridorsatum Schlüter type species umbilical undulatocarinatum Upper Coniacian valves venter ventral view ventrolateral tubercles westphalicum whorl section yellowish zulu Zuluites Zululand