Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 108 |
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Page 72
The gonads are well developed . On each side there is a massive lobed testis
ventrally ( Fig . 36B ) and a large egg dorsally ( Fig . 36A ) . In some zooids the
egg is segmented in four blastomeres . We rarely observed even slightly
developed ...
The gonads are well developed . On each side there is a massive lobed testis
ventrally ( Fig . 36B ) and a large egg dorsally ( Fig . 36A ) . In some zooids the
egg is segmented in four blastomeres . We rarely observed even slightly
developed ...
Page 74
A well - developed pyloric gland of joined vesicles surrounds the intestine like a
sleeve ( Fig . 37C , D ) . The rectum is wide and opens at the eighth or ninth row
of stigmata without narrowing . None of the colonies studied had eggs or
embryos ...
A well - developed pyloric gland of joined vesicles surrounds the intestine like a
sleeve ( Fig . 37C , D ) . The rectum is wide and opens at the eighth or ninth row
of stigmata without narrowing . None of the colonies studied had eggs or
embryos ...
Page 98
Generally , these species are only able to develop gonads after evisceration .
After a zooid releases its genital ... About 40 irregularly developed oral tentacles
are distributed in four orders on a muscular rod . In one specimen , parasitic
ciliates ...
Generally , these species are only able to develop gonads after evisceration .
After a zooid releases its genital ... About 40 irregularly developed oral tentacles
are distributed in four orders on a muscular rod . In one specimen , parasitic
ciliates ...
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Contents
Introduction | 2 |
Other ascidians recorded in South Africa but not present in this collection | 127 |
Acknowledgements | 134 |
Copyright | |
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Common terms and phrases
abdomen apical apical margin ascidians bands basal base basitarsus body body wall branchial sac Cape Province cloacal coll collected colonies colour common covered dense described Description developed DIEGO disc distal distribution dorsal Durban extending farm Female folds foreleg forms front genus gonads gut loop hairs half Hartmeyer Head hind Holotype labrum larvae lateral legs length light brown lobes locality longitudinal Male material median Mesosoma Metasoma Michaelsen middle Millar Monniot Museum narrow nectar plants Nieuwoudtville numerous opens oral ovary papillae placenta plants posterior protruding pubescence punctures recorded Rediviva Remarks rows Scrophulariaceae scutum Sept shiny short side siphons slightly Sluiter South Africa species specimens spicules stigmata stomach straw-coloured structure surface tentacles testis thick thin thorax tibia tunic ventral vesicles vessels Western wide zooids
Bibliographic information
| Title | Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 108 Volume 108 of Annals of the South African Museum, South African Museum Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, South African Museum |
| Author | South African Museum |
| Publisher | South African Museum, 2001 |
| Original from | the University of California |
| Digitized | 8 Dec 2009 |
| ISBN | 0868131806, 9780868131801 |
| Export Citation | BiBTeX EndNote RefMan |