Annals of the South African MuseumSouth African Museum, 1990 - Natual history |
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Page 3
... apex , subrectangular near basis ; internally ribbed , ribs usually on lower portion but may extend almost to sheath , short secondary ribs sometimes on larger speci- mens ; basal denticles conspicuous with correspondingly small tapered ...
... apex , subrectangular near basis ; internally ribbed , ribs usually on lower portion but may extend almost to sheath , short secondary ribs sometimes on larger speci- mens ; basal denticles conspicuous with correspondingly small tapered ...
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... apex . Apex not beaked , area of transverse ridges small ; interior of valve below apex with several irregular grooves ; carinal depressor crests effectively absent but faint grooving sometimes visible . Spur short and wide ...
... apex . Apex not beaked , area of transverse ridges small ; interior of valve below apex with several irregular grooves ; carinal depressor crests effectively absent but faint grooving sometimes visible . Spur short and wide ...
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Common terms and phrases
1983 Austromegabalanus Notomegabalanus 50-m Package abbreviated apex articular furrow articular ridge austral megabalanine Austromegabalanus Austromegabalanus Austromegabalanus Notomegabalanus Austromegabalanus s.s. BALANIDAE Balanus barnacle coquina basal lower shoreface basal margin convex basi-scutal angle beaked campbelli Filhol Cape Town carinal closed spur furrow cluster concave denticles deposits depressor crests Disarticulated exterior radial exterior scutal portion extinct Fosterella Fosterella chathamensis Buckeridge Gastropoda Holotype Hondeklip Zone 12A infill kensleyi sp lateral depressor pit Leda Megabalanus s.s. Miocene Namaqualand Notomega NZ S NZ occludent margin Oligocene opercula paratypes parentheses parietal pores Pleistocene Pliocene porous radii punctuation radial sculpture references Roman numerals scientific name scutal margin scutum septa shallow spur furrow shallow subtidal shells without opercula SOUTH AFRICA South African Museum species of Notomegabalanus specimens squillae Daniel subgenus Subgenus Notomegabalanus subheadings are shouldered sutural edges Synonymy Synonymy arrangement taxa tergal margin tergum transverse septa upper shoreface width from basi-scutal Zullo & Guruswami-Naidu