Anatomical comparison of auditory organs between two species of bats in Yongzhou of Hu&rsquo;nan province

doi:10.3969/j.issn.0529-1356.2014.02.020

Acta Anatomica Sinica ›› 2014 ›› Issue (2) : 253-256. DOI: 10.3969/j.issn.0529-1356.2014.02.020

Anatomical comparison of auditory organs between two species of bats in Yongzhou of Hu’nan province

LIAO Yang* YAN Rong-ling LUO Ying LUO Jin-qiang CHEN Jie

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Objective To understand and compare the auditory organs ofScotomanes ornatus(SO) andPipistrellus abramus(PA) in Yongzhou of Hu’nan province.Methods The auditory organ components of 5 SO and 12 PA obtained through micro-dissection manipulation were measured and analyzed statistically. Results Complete tympanic membrane(SO: 9; PA: 19), malleus(SO: 10; PA: 18), incus(SO: 10; PA: 18), stapes(SO: 6; PA: 14) and cochlea(SO: 10; PA: 24) were isolated successfully. Characteristic parameters such as length of malleus’ helve, length of incus’ crus longum, height and bottom width of cochlea, area of tympanic membrane and stapes’ foot plate were measured, and significant difference existed in these characteristic parameters between two species. Amplification times of sound pressure in middle ear of the two species were 27.37 (SO) and 40.99 (PA), respectively, also showed significant difference. Conclusion Two species of bats shaped obviously different but matching their own living environment and acoustic behaviors auditory organs structure, although they are both belong to the same branch of vespertilionidae.

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LIAO Yang* YAN Rong-ling LUO Ying LUO Jin-qiang CHEN Jie. Anatomical comparison of auditory organs between two species of bats in Yongzhou of Hu’nan province[J]. Acta Anatomica Sinica. 2014(2): 253-256 https://doi.org/10.3969/j.issn.0529-1356.2014.02.020

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