Annals of the South African Museum, Volume 46The Museum, 1963 - Natural history |
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Page 133
... siphon with shallow lobes ; atrial siphon tubular with oblique opening and the dorsal margin slightly produced as a short lip . Longi- tudinal muscles many and narrow . About 20 oral tentacles and 20 rows of stigmata . Dorsal tubercle ...
... siphon with shallow lobes ; atrial siphon tubular with oblique opening and the dorsal margin slightly produced as a short lip . Longi- tudinal muscles many and narrow . About 20 oral tentacles and 20 rows of stigmata . Dorsal tubercle ...
Page 154
... siphon is remarkably long , and may equal or even exceed the thorax in length . Its opening has 6 lobes . The atrial siphon arises from the posterior end of the thorax and is about the same length as the oral siphon . It is generally ...
... siphon is remarkably long , and may equal or even exceed the thorax in length . Its opening has 6 lobes . The atrial siphon arises from the posterior end of the thorax and is about the same length as the oral siphon . It is generally ...
Page 208
... siphon number about 24 and on the atrial siphon about 20. Circular muscles surround each siphon but do not extend beyond their bases . The remaining muscles of the body wall consist of 2 sets . The first set is of short transverse ...
... siphon number about 24 and on the atrial siphon about 20. Circular muscles surround each siphon but do not extend beyond their bases . The remaining muscles of the body wall consist of 2 sets . The first set is of short transverse ...
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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