Annals of the South African MuseumSouth African Museum, 1990 - Natual history |
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Page 3
... portion but may extend almost to sheath , short secondary ribs sometimes on larger speci- mens ; basal denticles conspicuous with correspondingly small tapered ridges on lower ribs ; sheath about half the length of plate , lower margin ...
... portion but may extend almost to sheath , short secondary ribs sometimes on larger speci- mens ; basal denticles conspicuous with correspondingly small tapered ridges on lower ribs ; sheath about half the length of plate , lower margin ...
Page 6
... portion gently convex , exterior scutal portion usually slightly outwardly deflected . Articular margin quite narrowly reflexed at approximately right angle , rugose , forming ridge along scutal margin of articular furrow ; articular ...
... portion gently convex , exterior scutal portion usually slightly outwardly deflected . Articular margin quite narrowly reflexed at approximately right angle , rugose , forming ridge along scutal margin of articular furrow ; articular ...
Page 9
... portion . The opercula of A. ( ? N . ) obliquus ( Ross , 1964 ) ( Pliocene , Western North Atlantic ) have not been recovered but that species is larger than the new species and has externally ribbed parietes with deeply inset radii ...
... portion . The opercula of A. ( ? N . ) obliquus ( Ross , 1964 ) ( Pliocene , Western North Atlantic ) have not been recovered but that species is larger than the new species and has externally ribbed parietes with deeply inset radii ...
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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