Paper

The Cytoarchitecture of the Inferior Colliculus of Two Species of Bats: Noctilio leporinus (Fish Eating) and Phyllostomus Hastatus (Carnivorous/ Omnivorous)


Authors:
Abayomi Odekunle; Andrew Adogwa; Venkatesan Sundaram; Isanna Gibbons
Abstract
The study was done to compare the cytoarchitecture of two species of bats to ascertain whether echolocation has a bearing on the development of the inferior colliculus. Six bats each of Noctilio leporinus and Phyllostomus hastatus were used for the study. The brains of these bats were processed by double embedding, serially sectioned at 10μm and stained with cresyl fast violet. The inferior colliculus measured 1200 ± 90μm in length in N. leporinus bat and 1120± 63 μm in P. hastatus bat. The inferior colliculus of the bats is subdivided into three parts: dorsomedial, ventromedial and the peripheral. Two types of cells are most common in the inferior colliculus of the bats: multipolar and oval. The inferior colliculus is very large in the two species of bats compared to other animals which do not echolocate and which may not have as good a sense of hearing as the bat. It is larger in the N. leporinus than in the P. hastatus bat suggesting that N. leporinus depends more on echolocation than P. hastatus. The large inferior colliculus in these bats may be related to an acute sense of hearing in these animals.
Keywords
Inferior Colliculus; Cytoarchitecture; Bats
StartPage
173
EndPage
178
Doi
10.5963/LSMR0304005
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