Electronic Resource
Oxford, UK
:
Blackwell Publishing Ltd
Marine mammal science
3 (1987), S. 0
ISSN:
1748-7692
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Biology
Notes:
We provided a water-cornea interface to correct the usual aerial myopia encountered in fundus photography of marine mammal eyes. The 12 Tursiops eyes were consistent for vascular structure, optic papillae, dimensional components and tapetal coloration. Multiple photographs were assembled to produce one ocular fundus typical of Tursiops truncatus and one for Grampus griseus. The eyes have a vestigial hyaloid vessel and an optic disc („blind spot”) that occupies the center of the fundus. The disc is bounded in both species by a vascular structure that is continuous with a (retrobulbar) perineural organ called the ophthalmic rete. The vascular trees of the fundus do not suggest an area of specialization for high resolution. Both species exhibit total tapetalization. Tapetal spectral reflectance did not vary between Tursiops. There was, however, a difference between species in the short wavelength regions of the spectrum.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1748-7692.1987.tb00147.x
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