Abstract
The gross anatomical arrangement of the orbit and its contents in N. alexis are described, with observations of these structures with the light microscope and of the retina with the transmission and scanning electron microscope. The eye is large compared with that of other rodents, and, in view of the rod outer segment length (43 �m), may afford sensitive nocturnal vision. It is unlikely that the animal has stereoscopic vision. Behavioural and microscopic evidence suggests that N. alexis has considerable processing of the visual signal at a retinal level, which may facilitate its rapid response to any sudden movement within the wide area of its visual field.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
