The male reproductive system and the phylogeny of elephant‐shrews (Macroscelidea)

WOODALL P.F. (1995) The male reproductive system and the phylogeny of elephant‐shrews (Macroscelidea). Mammal Review, 25 1-2: 87-93. doi:10.1111/j.1365-2907.1995.tb00441.x


Author WOODALL P.F.
Title The male reproductive system and the phylogeny of elephant‐shrews (Macroscelidea)
Journal name Mammal Review   Check publisher's open access policy
ISSN 1365-2907
Publication date 1995-01-01
Sub-type Article (original research)
DOI 10.1111/j.1365-2907.1995.tb00441.x
Open Access Status Not yet assessed
Volume 25
Issue 1-2
Start page 87
End page 93
Total pages 7
Subject 1103 Clinical Sciences
Abstract Elephant‐shrews show many unusual features of their reproductive systems. The testes lie in the abdominal cavity, just caudal to the kidneys, and are relatively very small. The epididymis is long and most sperm are stored in a coiled region, possibly homologous to the cauda epididymidis, adjacent to the rectum. Spermatogenesis occurs throughout the year but there are marked seasonal changes in the size of the testis and accessory glands. The spermatozoa have a spatulate‐shaped nucleus with a long acrosome. The subacrosome is pointed or more rounded in Macroscelides and Petrodromus but is anvil‐shaped in Elephantulus with lateral barbs. Coarse fibres 1,5,6 and 9 are enlarged but in E. edwardii there is a great enlargement of all the coarse fibres. The accessory glands consist of five pairs of prostate glands, a uterus masculinus and a pair of bulbourethral glands. The penis is very long and runs cranially under the abdominal skin. The distal end of the glans has a characteristic shape for each genus. Features of the male reproductive system give no support for the suggested relationship of elephant‐shrews with lagomorphs and rodents but do show some similarities with the paenungulates (hyrax, elephant and sireneans). Copyright
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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