Annals of the South African Museum, Volume 72 |
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Page 67
The astragalus and calcaneum are somewhat smaller relative to the distal elements in Galesphyrus . In Paleothyris , there is a small medial centrale that is lost in Galesphyrus , and the lateral centrale is more elongate .
The astragalus and calcaneum are somewhat smaller relative to the distal elements in Galesphyrus . In Paleothyris , there is a small medial centrale that is lost in Galesphyrus , and the lateral centrale is more elongate .
Page 138
These changes in the pattern of growth occur in larvae of 24–33 mm s.l. They can be attributed to the anterior migration of the dorsal and anal fins , relative to myotomes and vertebrae . Most authors ( Lebour 1921 ; Ford 1930 ...
These changes in the pattern of growth occur in larvae of 24–33 mm s.l. They can be attributed to the anterior migration of the dorsal and anal fins , relative to myotomes and vertebrae . Most authors ( Lebour 1921 ; Ford 1930 ...
Page 141
This cannot be explained by any forward shift in pelvic fin position relative to myotomes as the fin retains its position at myotomes 15-17 ( or vertebrae 17-18 ) as in the late larval stages when the pelvic bud first appeared .
This cannot be explained by any forward shift in pelvic fin position relative to myotomes as the fin retains its position at myotomes 15-17 ( or vertebrae 17-18 ) as in the late larval stages when the pelvic bud first appeared .
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Contents
samples from the Mgazana Estuary Pondoland South Africa 31 50S | 17 |
CARROLL R L | 56 |
Africa Published November 1976 | 59 |
Copyright | |
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Common terms and phrases
abbreviated adult appear arrangement author's name authors Baculites Barnard base bearing body Bongo CALIFORNIA Cape Town capensis capital carapace closely collected Collignon complete described Description designated DIEGO differences distal dorsal Durban early elongate Family female figures four genus given gnathopod headings Holotype illustrations included indicated inner italics known larvae lateral length letters LIBRARY lobe locality longer male margin material maxilla myotomes Note occur original outer paratypes pereiopod placed position posterior present preserved proximal published ramus recorded references region relative Remarks ribs rostrum rounded scientific segment separates setae short shows similar single slightly Smith South African Museum species specimen spines stage strong surface Table teeth terminal third tubercles UNIVERSITY Upper uropod ventral volume whorl zone