Results 161 to 170 of about 2,982 (203)

Structure of the dermal scales in gymnophiona (Amphibia)

Journal of Morphology, 1980
AbstractHistology and cytology of dermal scales of the gymnophionans Ichthyophis kohtaoensis and Hypogeophis rostratus reveal their structure and the nature of their mineralization.Dermal scales are small flat disks set in pockets in the transverse ridges of the skin. Each pocket contains several scales of various sizes.
L, Zylberberg, J, Castanet, A, De Ricqles   +2 more
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The trunk musculature of caecilians (Amphibia: Gymnophiona)

Journal of Morphology, 1980
AbstractDescriptions of the trunk musculature of six species representing sex genera and five families of caecilians reveal considerable variation, which may be useful in future systematic studies. The muscle units of the external muscular sheath (M. dorsalis trunci, M.
Bruce G, Naylor, Ronald A, Nussbaum
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Ultrastructure of the mature spermatozoa of caecilians (Amphibia: Gymnophiona)

Journal of Morphology, 2003
AbstractThe spermatozoa of Gymnophiona show the following autapomorphies: 1) penetration of the distal centriole by the axial fiber; 2) presence of an acrosomal baseplate; 3) presence of an acrosome seat (flattened apical end of nucleus); and 4) absence of juxta‐axonemal fibers.
Scheltinga, David M., Wilkinson, Mark, Jamieson, Barrie G.M., Oommen, Oommen V.   +3 more
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The Chromosomes of Caecilians (Amphibia: Gymnophiona)

Copeia, 1975
PARKER, G. H. 1931. The passage of sperms and of eggs through the oviducts in terrestrial vertebrates. Phil. Tr. Roy. Soc. Ser. B. 219:381-419. PARKES, A. S. 1960. The biology of spermatozoa and artificial insemination, p. 161-263. In: Marshall's physiology of reproduction. A. S. Parkes (ed.). Vol. I, Pt. 2. Longmans Green and Co. Ltd. SAINT GIRONS, H.
Marvalee H. Wake, Susan M. Case
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Tooth crown morphology in caecilians (Amphibia: Gymnophiona)

Journal of Morphology, 1979
AbstractThe morphology of tooth crowns is variable inter‐specifically among caecilians. Cusp number and shape, crown dimensions, and crown curvature characterize various species and have both functional and phylogenetic implications. Ichthyophis, Uraeotyphlus, Hypogeophis, and Geotrypetes have bicuspid teeth; Dermophis, Gymnopis, Caecilia, and ...
Marvalee H, Wake, Gloria Z, Wurst
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Gymnophiona Family Caeciliidae

2012
This chapter presents short descriptions, data on the distribution, reproduction and natural history of the species of family Caeciliidae now known for the country. It discusses 5 species such as Caecilia gracilis, Caecilia tentaculata, Microcaecilia rabei, Microcaecilia taylori, and Microcaecilia unicolor under this family.Keywords:Caecilia gracilis ...
Paul E. Ouboter, Rawien Jairam
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Visual projections in larval Ichthyophis kohtaoensis (Amphibia: gymnophiona)

Developmental Brain Research, 1985
The visual projection patterns of retinal efferents were studied in larval Ichthyophis kohtaoensis by means of anterogradely transported HRP. Our results show in all larvae a projection contralateral to a thalamic terminal field, a pretectal terminal field, and a basal optic neuropil, but only a sparse innervation of the contralateral tectum.
B, Fritzsch, W, Himstedt, M D, Crapon de Caprona   +2 more
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Electrophoretic patterns of certain proteins in caecilians (amphibia: gymnophiona)

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1975
Abstract 1. 1. A maximum of 15 loci from five genera of caecilians (Amphibia: Gymnophiona or Apoda) were examined. Species include Ichthyophis glutinosus, Geotrypetes seraphini, Caecilia occidentalis, Gymnopis multiplicata , and Dermophis mexicanus . 2. 2.
S M, Case, M H, Wake
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Retinal projections in the caecilian Ichthyophis kohtaoensis (Amphibia, Gymnophiona)

Cell and Tissue Research, 1985
The retinal projections of the caecilian Ichthyophis kohtaoensis were investigated by anterograde transport of HRP. The optic tract forms two bundles in the diencephalon, a narrow medial bundle in the optic tectum, and a basal optic tract consisting of few fibres.
W, Himstedt, G, Manteuffel
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Comparative morphology of caecilian sperm (Amphibia: Gymnophiona)

Journal of Morphology, 1994
AbstractThe morphology of mature sperm from the testes of 22 genera and 29 species representing all five families of caecilians (Amphibia: Gymnophiona) was examined at the light microscope level in order to: (1) determine the effectiveness of silver‐staining techniques on long‐preserved, rare material, (2) assess the comparative morphology of sperm ...
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