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11. |
Observations on the cranial anatomy ofAnniella, and a comparison with that of other burrowing lizards |
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Proceedings of the Zoological Society of London,
Volume 119,
Issue 4,
1950,
Page 887-904
A. d'A. Bellairs,
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摘要:
Summary.1 Some features of the cranial anatomy, including the chondrocranium, of the burrowing lizardAnniella pulchraare described, mainly from serial sections.2 The skull shows marked elongation of the temporal region, reduction of the orbits, loss of the temporal arcades and obliteration of the parieto‐occipital angle, so that the skull contours are streamlined.3 The cranial kinesis is thought to be mainly of the mesokinetic type.4 Basitrabecular processes, menisci and small epipterygoids are present. The parietal bones possess extensive downgrowths which partly enclose the cranial cavity on either side.5 The chondrocranium shows great reduction in the orbito‐temporal region. A low interorbital septum, narrow planum supraseptale and taeniae marginales are present. There are no pila metoptica or pila accessoria and the taeniae mediales are represented only by embryonic rudiments. There are no discrete optic foramina, the optic nerves passing back to the chiasma above the trabecula communis.6 The eyes are small but can hardly be regarded as degenerate; eyelids, nictitating membrane, lachrymal canaliculi and retractor bulbi muscles are present.7 The tympanic membrane, tympanic cavity and Eustachian tubes are absent. The columella is massive with a small extra‐columella.8 Conditions inAnniellaare compared with those in other burrowing lizards, especially withAnguis fragilis, the skinksNessiasp., andAcontias meleagris, and amphisbaenids. The main structural features associated with burrowing adaptation in lizards are described.9 In spite of marked burrowing specialization, the cranial anatomy ofAnniellaresembles that of more typical Sauria in many important respects, and lacks aberrant features such as are p
ISSN:0370-2774
DOI:10.1111/j.1096-3642.1950.tb00915.x
出版商:Blackwell Publishing Ltd
年代:1950
数据来源: WILEY
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12. |
A review of certain external structures employed in the coition of earthworms |
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Proceedings of the Zoological Society of London,
Volume 119,
Issue 4,
1950,
Page 905-916
W. B. Benham,
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ISSN:0370-2774
DOI:10.1111/j.1096-3642.1950.tb00916.x
出版商:Blackwell Publishing Ltd
年代:1950
数据来源: WILEY
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13. |
Typical sex‐reversal in Teleosts |
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Proceedings of the Zoological Society of London,
Volume 119,
Issue 4,
1950,
Page 917-920
M. Zei,
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ISSN:0370-2774
DOI:10.1111/j.1096-3642.1950.tb00917.x
出版商:Blackwell Publishing Ltd
年代:1950
数据来源: WILEY
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14. |
NOTES AND EXHIBITIONS |
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Proceedings of the Zoological Society of London,
Volume 119,
Issue 4,
1950,
Page 921-923
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ISSN:0370-2774
DOI:10.1111/j.1096-3642.1950.tb00918.x
出版商:Blackwell Publishing Ltd
年代:1950
数据来源: WILEY
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15. |
NOTICE |
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Proceedings of the Zoological Society of London,
Volume 119,
Issue 4,
1950,
Page 923-923
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ISSN:0370-2774
DOI:10.1111/j.1096-3642.1950.tb00919.x
出版商:Blackwell Publishing Ltd
年代:1950
数据来源: WILEY
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16. |
AGENDA AND ABSTRACTS OF THE SCIENTIFIC MEETINGS |
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Proceedings of the Zoological Society of London,
Volume 119,
Issue 4,
1950,
Page -
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PDF (910KB)
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ISSN:0370-2774
DOI:10.1111/j.1096-3642.1950.tb00904.x
出版商:Blackwell Publishing Ltd
年代:1950
数据来源: WILEY
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