Paria PARTO,Somaye VAISSI and Mozafar SHARIFI.Structure Organization of Urinary System in the Yellow Spotted Mountain Newts (Salamandridae: Neurergus microspilotus)[J].Asian Herpetological Research(AHR),2014,5(1):60-65.[doi:10.3724/SP.J.1245.2014.00060]
Click Copy

Structure Organization of Urinary System in the Yellow Spotted Mountain Newts (Salamandridae: Neurergus microspilotus)
Share To:

Asian Herpetological Research[ISSN:2095-0357/CN:51-1735/Q]

2014 VoI.5 No.1
Research Field:
Original Article
Publishing date:


Structure Organization of Urinary System in the Yellow Spotted Mountain Newts (Salamandridae: Neurergus microspilotus)
Paria PARTO1 Somaye VAISSI2 and Mozafar SHARIFI2*
1 Department of Biology, Razi University, Baghabrisham, 6714967346, Kermanshah, Iran
2 Department of Biology, Razi University Center for Environmental
Studies, Baghabrisham, 6714967346, Kermanshah, Iran
Neurergus microspilotus sexual kidney pelvic kidney ureters
This study deals with the histomorphology of the mesonephros in male and female Neurergus microspilotus. The slender and narrow kidneys are positioned in the retro peritoneal position up against the ventral aspect of vertebral column and may extend the length from the esophagus-stomach junction to cloaca. The kidney in both sexes is composed of sexual (anterior) and pelvic (posterior) parts. The duct of sexual kidney is a narrow duct which is lying alongside its lateral edge. In the female, it is connected to the ureters and then the duct of definitive kidney. Before entering the cloaca, two ureters are joined together and open to the apex of the cloaca. In the male, after entering the sexual kidney, the sperm leave the testis through efferent ducts, then these ducts join together and eventually form Bidder’s duct. The Bidder’s duct joins the Bowman’s capsule of the nephrons in the sexual kidney and the nephrons make collecting ducts which are filled with both sperm and urine. After leaving the kidney, all the collecting ducts are connected to the Wolffian duct. Wolffian duct joins the ureters (merge from definitive kidney) just before entering the cloaca. Based on serial paraffin sections, nephrons consist of a filtration unit, the Malpighian corpuscle, and a renal tubule, which can be divided into 4 morphologically distinct segments: proximal tubule (first and second segment), distal tubule, and collecting tubule. Collecting tubules merge and form a branch system that opens into collecting ducts.


Adams A. E. 1940. Sexual conditions in Triturus viridescens. III. The reproductive cycle of the adult aquatic form of both sexes. Am J Anat, 66: 235–275
Baker C. L. 1965. The male urogenital system of the Salamandridae. J Tenn Acad Sci, 40: 1–5
Baker C. L., Taylor W. W. 1964. The urogenital system of the male Ambystoma. J Tenn Acad Sci, 39: 1–9
Clothier R. H, Worley R. T. S., Balls M. 1978. The structure and ultrastructure of the renal tubule of the urodele amphibian, Amphiuma means. J Anat, 127: 491–504
Francis E. T. B. 1934. The anatomy of the salamander. New York: The Clarendon Press, 262–288
Gray P. 1932. The development of the amphibian kidney. Part II. The development of the kidney of Triton vulgaris and a comparison of this form vfith Rana temporaria. Quart Journ Micr Sci, London, Vol. Ixxv, 425–465
Hentschel H., Elger M. 1989. Morphology of glomerular and aglomerular kidneys. In Kinne R. K. H. (Ed.), Structure and function of the kidney. Basel: Karger, 1–72
Jobling P. 2011. Autonomic control of the urogenital tract. Autono Neurosci, 165: 113–126
Kriz W., Kaissling B. 2008. Structural and functional organization of the mammalian kidney. In Alpern R. J., Herbert S. C. (Eds.), Seldin and Giebisch’s The Kidney: Physiology and pathophysiology. Burlington: Academic Press, 479–563
Luna, L. G. 1968.Manual of Histologic Staining Methods of the Armed Forces Institute of Pathology, 3rd Ed. New York: American Registry of pathology, 76–77, 86–87 and 94–95
Maunsbach A. B., Boulpaep E. L. 1984. Quantitative ultrastructure and functional correlates in proximal tubule of Ambystoma and Necturus. Am J Physiol, 246: 710–724
Mobjerg N., Laresen E. H., Jaspersen A. 1998. Morphology of the nephron in the mesonephros of Bufo bufo (Amphibia, Anura, Bufonidae). Acta Zool, 79: 31–51
Mobjerg N., Jespersen A., Wilkinson M. 2004. Morphology of the kidney in the west African caecilian, Geotrypetes seraphini (Amphibia, Gymnophiona, Caeciliidae). J Morphol, 262: 583– 607
Norris D. O. 1987. Regulation of male gonaducts and sex accessory structures. In Norris D. O., Jones R. E. (Eds.), Hormones and Reproduction in Fishes, Amphibians, and Reptiles. New York: Plenum Press, 327–354
Poole V. A. 2012. AZA Amphibian husbandry resource guide. National Aquarium, Baltimore Shelly Grow, Association of Zoos and Aquariums, Edition 2.0.
Ratcliff M. A., J. R. 1965. The male urogenital system in Cryptobranchus. J Tenn Acad Sci, 40: 52–57
Rodgers L. T., Risley P. L. 1938. Sexual differentiation of urogenital ducts of Ambystoma tigrinum. J Morphol, 63: 119–141
Richards A. N. 1929. Methods and results of direct investigations of the function of the kidney. Williams and Williams company, Baltimore.
Sakai T., Kawahara K. 1983. The structure of the kidney of Japanese newts, Triturus (Cynops) pyrrhogaster. Anat Embryol, 166: 31–52
Saxe N. L. 1987. Organogenesis of the kidney. Developmental and cell biology series. Cambridge: Cambridge University Press
Sharifi M., Vaissi S. 2014. Captive breeding and trail re-introduction of the endangered yellow spotted mountain newt Neurergus microspilotus (Caudata: Salamandridae) in western Iran. Endang Spec Res, 23: 159–166
Siegel D. S., Severand M. D., Aldridge R. D. 2010. The pelvic kidney of male Ambystoma maculatum (Amphibia, Urodela, Ambystomatidae) with special reference to the sexual collecting ucts. J Morph, 271: 1422–1439
Spengel J. W. 1876. Das urogenital system der amphibien. Arb Zool Zoot Inst, 3: 1–114
Strickland P. 1966. The male urogenital system of Gyrinophilus danielsi dunni. J Tenn Acad Sci, 41: 26–31
Willett J. A. 1965. The male urogenital system in the Sirenidae. J Tenn Acad Sci, 40: 9–17
Williams A. A., Brandon R. A., Martan J. 1984. Male genital ducts in the salamanders Eurycea lucifuga and Eurycea longicauda. Herpetologica, 40: 322–330
Wright K. M. 2001. Anatomy for the clinician. In Wrighr K. M., Whitaker B. R. (Eds.), Amphibia medicine and captive husbandry. Malabar: Krieger Publishing, 31–34


Last Update: 2016-01-25