Summary
In Ichthyophis glutinosus, no residual spermatogonia traceable to primordial germ cells of the embryo are seen, the primary spermatogonia of each season being formed afresh. Their only source so far as the adult is concerned, is the lining of the collecting duct and its numerous branches which ramify in the testis. No evidences of their origin from the surface epithelial cells of the testis, stromal cells or nurse cells are seen.
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Allen, B. M.: An important period in the sex cells of Rana pipiens. Anat. Anz. 31, 339 (1907).
Bouin, M.: Histogenese de la glande genitale femelle chez Rana temporaria. Archives de Biol. 17, 201 (1091).
Champy, C.: Recherches sur la spermatogenese des Batraciens. Archives de Zool. 52, 13 (1913).
Dustin, A. P.: Recherches sur l'origin des gonocytes chez les Amphibiens. Archives de Biol. 23, 411 (1907).
Gatenby, J. B.: The transition of peritoneal epithelial cells into germ cells in some Amphibia Anura, especially in Rana temporaria. Quart. J. microsc. Sci. 61, 275 (1916).
Hargitt, G. T.: Germ cell origin in the adult salamander, Diemyctylus viridescens. J. Morph. a. Physiol. 39, Nr 1, 63 (1924).
Humphrey, R. R.: The interstitial cells of the urodele testis. Amer. J. Anat. 29, 213 (1921).
—: The multiple testis in Urodeles. Biol. Bull. Mar. biol. Labor. Wood's Hole 43, 45 (1922).
King, H. D.: The oogenesis of Bufo lentiginosus. J. Morph. a. Physiol. 19, 369 (1908).
Kingsbury, B. F.: The spermatogenesis of Desmognathus fusca. Amer. J. Anat. 1, 99 (1902).
McGregor, J. H.: The spermatogenesis of Amphiuma. J. Morph. a. Physiol. 15, Suppl., 57 (1899).
Makino, S.: The residual spermatogonia in the adult salamander, Hynobius lichenatus Boul. and their behaviour during the seasonal cycle of the germ cells. J. Fac. Sci., Hokkaido Imp. Uni. 1, Nr 2, 41 (1931).
Meves, F.: Über die Entwicklung der männlichen Geschlechtszellen von Salamandra maculosa. Arch. mikrosk. Anat. 48, 1 (1897).
Nußbaum, M.: Zur Differenzierung des Geschlechts im Tierreich. Arch. mikrosk. Anat. 18, 1 (1880).
Obreshkove, V.: Accessory testicular lobes in Diemyctylus viridescens, their probable origin and significance. J. Morph. a. Physiol. 39, 1 (1924).
Seshachar, B. R.: The spermatogenesis of Ichthyophis glutinosus (Linn). Part 1. The spermatogonia and their division. Z. Zellforsch. 24, 662 (1936).
Spengel, J. W.: Das Urinogenital-system der Amphibien. Arb. Zool.-Zootom. Inst. Würzburg 3 (1876).
Stieve, H.: Die Entwicklung der Keimzellen des Grottenolmes (Proteus anguineus). 1. Spermatogenese. Arch. mikrosk. Anat. 93, 141 (1930).
Swingle, W. W.: The germ cells of Anurans. 1. The male sexual cycle of Rana catesbiana larvae. J. of exper. Zool. 32, 235 (1921).
Von La Valette St. George: Die Spermatogenese bei den Amphibien. Arch. mikrosk. Anat. 12 (1875.)
Vom Rath, O.: Beitrag zur Kenntnis der Spermatogenese von Salamandra maculosa. Z. Zool. 57, 97 (1893).
Waldeyer, W.: Eierstock und Ei. Leipzig 1870.
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Seshachar, B.R. Germ-cell origin in the adult caecilian Ichthyophis glutinosus (Linn). Z. f. Zellforschung u. mikr. Anatomie 26, 293–304 (1937). https://doi.org/10.1007/BF00375466
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DOI: https://doi.org/10.1007/BF00375466