| 1. |
THE ONTOGENY OF THE CRANIAL BONES, CRANIAL PERIPHERAL AND CRANIAL PARASYMPATHETIC NERVES, TOGETHER WITH A STUDY OF THE VISCERAL MUSCLES OFSTRUTHIO |
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Acta Zoologica,
Volume 38,
Issue 2‐3,
1957,
Page 81-203
M. WEBB,
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摘要:
AbstractThe skull ofStruthiois typically avian. There are, however, many cranial features that are neotenic in relation to the otherDromaeognathaeandNeognathae.The premaxillary‐vomer arthrosis is present in the embryo ofStruthiobut is absent in the adult; it is present in the adults of the otherDromaeognathae;the trabeculo‐capsular entity is uninterrupted: therefore, there is no mesokinetic joint; kinesis, as a result, is limited. No orbitosphenoid present; septum ossifies as mesethmoid which appears on the dorsal surface. There are only two circumorbital bones present: the lacrimal and the jugal. The auditory region has only two centres of ossification: the prootic and opisthotic. The quadrate has a single elongated condyle of the processus oticus which articulates with the prootic and squamosal. The cranial base is ossified as the basioccipital and basisphenoid, the latter being of mixed origin. There are five dermal bones in the lower jaw ofStruthio; the gonial is present. The trigeminus musculature is reduced and shows very definite neotenic features. The peripheral cranial nerves are typically avian. The cranial parasympathetic nerves are well developed in the embryo but show definite signs of resorption in the later stages of development. The hyoid apparatus is mainly cartilaginous; the hyoid musculature is redu
ISSN:0001-7272
DOI:10.1111/j.1463-6395.1957.tb00052.x
出版商:Blackwell Publishing Ltd
年代:1957
数据来源: WILEY
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| 2. |
SOME BIOCHEMICAL AND ELECTRO‐CARDIOGRAPHICAL DATA ON BADGERS |
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Acta Zoologica,
Volume 38,
Issue 2‐3,
1957,
Page 205-218
BENGT JOHANSSON,
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ISSN:0001-7272
DOI:10.1111/j.1463-6395.1957.tb00053.x
出版商:Blackwell Publishing Ltd
年代:1957
数据来源: WILEY
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| 3. |
FURTHER STUDIES ON THE FERTILIZATION OF JELLY‐FREE SEA URCHIN EGGS |
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Acta Zoologica,
Volume 38,
Issue 2‐3,
1957,
Page 219-222
BERNDT E. HAGSTRÖM,
BÖRJE MARKMAN,
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ISSN:0001-7272
DOI:10.1111/j.1463-6395.1957.tb00054.x
出版商:Blackwell Publishing Ltd
年代:1957
数据来源: WILEY
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| 4. |
SEXUAL DIFFERENCES OF CAROTENOID CONTENT IN THE SKIN OF LABRUS MIXTUS KROEYER |
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Acta Zoologica,
Volume 38,
Issue 2‐3,
1957,
Page 223-238
LEO ABOLINŠ,
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ISSN:0001-7272
DOI:10.1111/j.1463-6395.1957.tb00055.x
出版商:Blackwell Publishing Ltd
年代:1957
数据来源: WILEY
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| 5. |
THE MICROSTRUCTURE OF DERMAL BONES IN ARTHRODIRES |
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Acta Zoologica,
Volume 38,
Issue 2‐3,
1957,
Page 239-275
A. P. BYSTROW,
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ISSN:0001-7272
DOI:10.1111/j.1463-6395.1957.tb00056.x
出版商:Blackwell Publishing Ltd
年代:1957
数据来源: WILEY
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| 6. |
NOTES ON THE DISTRIBUTION OF THE MITOCHONDRIA IN THE YOUNG SPERMATIDS OF SOME MAMMALS |
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Acta Zoologica,
Volume 38,
Issue 2‐3,
1957,
Page 277-281
LENNART NICANDER,
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ISSN:0001-7272
DOI:10.1111/j.1463-6395.1957.tb00057.x
出版商:Blackwell Publishing Ltd
年代:1957
数据来源: WILEY
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| 7. |
ON THE CARDIAC PLEXUS OF THE VAGUS INTESTINALIS NERVES IN MYXINE* |
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Acta Zoologica,
Volume 38,
Issue 2‐3,
1957,
Page 283-288
ALF G. JOHNELS,
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ISSN:0001-7272
DOI:10.1111/j.1463-6395.1957.tb00058.x
出版商:Blackwell Publishing Ltd
年代:1957
数据来源: WILEY
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首页
Volume 38 issue 2‐3