𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Cone photopigments in nocturnal and diurnal procyonids

✍ Scribed by Gerald H. Jacobs; Jess F. Deegan

Book ID
104670948
Publisher
Springer
Year
1992
Tongue
English
Weight
815 KB
Volume
171
Category
Article
ISSN
0340-7594

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✦ Synopsis

Procyonids are small, New World carnivores distributed among some 6 genera. Electroretinogram (ERG) flicker photometry was used to measure the spectra of the cone photopigments for members of two nocturnal species, the raccoon (Procyon lotor) and the kinkajou (Potos flavus), and a diurnal species, the coati (Nasua nasua). Each of the 3 has a class of cone photopigment with maximum sensitivity in the middle to long wavelengths. The spectral positioning of this cone is different for the three. Whereas the raccoon and kinkajou are monochromatic, the diurnal coati is a dichromat having an additional class of cone photopigment with peak sensitivity close to 433 nm.

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