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bioacoustics article: J Mammalogy 85(4)

Subject: bioacoustics article: J Mammalogy 85(4)
From: Brian R. Mitchell <>
Date: Mon, 23 Aug 2004 20:55:38 -0700
<pre style="margin: 0em;">Hi List,</pre><br>
 <tt>This article may be a little off-topic, but it was the only 
 bioacoustics-related article in the current issue:</tt><br>
 <tt>Mason, Matthew J. 2004. The middle ear apparatus of the Tuco-Tuco Ctenomys 
 sociabilis (Rodentia, Ctenomyidae). Journal of Mammalogy 
 <tt>Abstract: 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.</tt><br>
 Brian R. Mitchell<br>
 Post-Doctoral Associate<br>
 University of Vermont<br>
 The Rubenstein School of Environment and Natural Resources<br>
 81 Carrigan Drive<br>
 Burlington, VT  05405-0088<br>
 (802) 656-2496<br>

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