Annals of the South African Museum, Volume 46The Museum, 1963 - Natural history |
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Page 313
... pinnae arise alternately and Kirchenpauer that they arise irregularly . Probably both are correct , for a series of alternate pinnae twisted in a spiral manner would give an irregular appearance . I have seen whole mounts of A ...
... pinnae arise alternately and Kirchenpauer that they arise irregularly . Probably both are correct , for a series of alternate pinnae twisted in a spiral manner would give an irregular appearance . I have seen whole mounts of A ...
Page 316
... Pinnae arranged in a loose to tight spiral around a geniculate ' main axis ' . Intervals between pinnae regular and approximately equal . Basal and distal regions of pinnae separated by hinge - joints . Hydrocladia short , about 6 mm ...
... Pinnae arranged in a loose to tight spiral around a geniculate ' main axis ' . Intervals between pinnae regular and approximately equal . Basal and distal regions of pinnae separated by hinge - joints . Hydrocladia short , about 6 mm ...
Page 317
... pinnae ( usually 3 ) as second , and the ' main axis ' ( formed by the origins of consecutive pinnae ) twisted in a spiral manner . Hydrocladia alternate , long , reaching 15 mm . Hydrotheca similar in structure to subsp . flexuosus ...
... pinnae ( usually 3 ) as second , and the ' main axis ' ( formed by the origins of consecutive pinnae ) twisted in a spiral manner . Hydrocladia alternate , long , reaching 15 mm . Hydrotheca similar in structure to subsp . flexuosus ...
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Common terms and phrases
abdomen alveolus apical arranged atrial Barnard basal base black type arabic Brnrd canine Cape Province Cape Town cingular cusp coast collection colony crown cynodonts dead dentary dentition described Description developed Diademodon diameter distal dorsal view Ecnomus Ericiolacerta erupted False Bay fathoms female genus gonad gonothecae Hartmeyer holotype hydrocladia hydrotheca incisors inner internode Jonkeria labial larvae legs length lingual lobes longitudinal male mandible margin material maxilla median Michaelsen Millard Name of author Natal nematothecae numerals without prefix pair Palaeontology palp paper papillae Papio Parapapio plate Polychaeta postcanine row postcanines posterior present protoconch replacing tooth SAMH sclerite segment setae side siphons slender slightly Sluiter South African Museum species spines stem surface synonymy Tapinocephalia teeth tergite thorax Thrinaxodon tooth replacement Transvaal transverse Trichoptera type arabic numerals type specimen ventral volume number wellsi whorls yellowish zooids Zool Zoology Zoology and Palaeontology Zoology excl