+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

The middle ear apparatus of the tuco-tuco Ctenomys sociabilis (Rodentia, Ctenomyidae)

The middle ear apparatus of the tuco-tuco Ctenomys sociabilis (Rodentia, Ctenomyidae)

Journal of Mammalogy 85(4): 797-805

Despite much recent interest in the middle ear and hearing of subterranean mammals, there is very little information in the literature regarding the middle ear apparatus of tuco-tucos (Rodentia: Ctenomyidae). In this study, the middle ear apparatus of Ctenomys sociabilis was dissected and is described for the first time. The middle ear structures of this species proved to be very similar to those of other caviomorph rodents; for example, in the bullet-shaped malleus head and in the fusion of the malleus and incus. The caviomorphs represent a rather conservative group in this respect. The m. stapedius is not present in C. sociabilis-loss of middle ear muscles is a common trend among fossorial mammals, but this particular feature has been reported in many other members of the superfamily Octodontoidea. Although the middle ear apparatus of C. sociabilis includes features consistent with the fossorial paradigm, some of which might be interpreted as low-frequency adaptations, it is not obviously specialized relative to other caviomorphs in this respect.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 012666171

Download citation: RISBibTeXText

DOI: 10.2307/1383802

Related references

The Middle Ear Apparatus Of The Tuco-Tuco Ctenomys Sociabilis (Rodentia, Ctenomyidae). Journal of Mammalogy 85(4): 797-805, 2004

The conservation status of the tuco-tucos, genus Ctenomys (Rodentia : Ctenomyidae), in southern Brazil FT O status da conservacao dos tuco-tucos, genero Ctenomys (Rodentia: Ctenomyidae), no sul do Brasil. 2007

A New Species of Tuco-Tuco, Genus Ctenomys (Rodentia: Ctenomyidae) from Patagonian Chile. Journal of Mammalogy 75(2): 338-348, 1994

Energy budget in subterranean rodents: insights from the tuco-tuco Ctenomys talarum (Rodentia: Ctenomyidae). University of California Publications in Zoology 134: 111-139, 2007

Effect of tunnel inclination on digging energetics in the tuco-tuco, Ctenomys talarum (Rodentia: Ctenomyidae). Die Naturwissenschaften 94(2): 100-106, 2007

Bottlenecks and dispersal in the tuco-tuco das dunas, Ctenomys Flamarioni (Rodentia : Ctenomyidae), in Southern Brazil. Journal of Mammalogy 88(4): 935-945, 2007

Geometric morphometric analysis of geographic variation in the Ro Negro tuco-tuco, Ctenomys rionegrensis (Rodentia: Ctenomyidae). Mammalian Biology - Zeitschrift für Säugetierkunde 71(5): 288-298, 2006

Geometric morphometric analysis of geographic variation in the Rio Negro tuco-tuco, Ctenomys rionegrensis (Rodentia: Ctenomyidae). Mammalian Biology 715: 288-298, 2006

Chromosome synapsis and recombination in simple and complex chromosomal heterozygotes of tuco-tuco (Ctenomys talarum: Rodentia: Ctenomyidae). Chromosome Research 22(3): 351-363, 2014

An endemic new species of tuco-tuco, genus Ctenomys (Rodentia: Ctenomyidae), with a restricted geographic distribution in southern Brazil. Journal of Mammalogy 93(5): 1355-1367, 2012

Surface mound formation by the tuco tuco ctenomys fulvus rodentia ctenomyidae with comments on earth pushing in other fossorial mammals. Journal of Zoology (London) 205(3): 385-390, 1985

The oldest South American tuco-tuco late Pliocene, northwestern Argentina and the boundaries of the genus Ctenomys Rodentia, Ctenomyidae. Mammalian Biology - Zeitschrift für Säugetierkunde 75(3): 243-252, 2010

Phylogeographical structure in the subterranean tuco-tuco Ctenomys talarum (Rodentia: Ctenomyidae): contrasting the demographic consequences of regional and habitat-specific histories. Molecular Ecology 16(16): 3453-3465, 2007

Oxytocin and vasopressin receptor distributions in a solitary and a social species of tuco-tuco (Ctenomys haigi and Ctenomys sociabilis). Journal of Comparative Neurology 507(6): 1847-1859, 2008

Ancient Dna Evidence Of Prolonged Population Persistence With Negligible Genetic Diversity In An Endemic Tuco-Tuco (Ctenomys Sociabilis). Journal of Mammalogy 84(2): 403-417, 2003