Absence of short-wavelength sensitive cones in the retinae of seals (Carnivora) and African giant rats (Rodentia).

@article{Peichl1998AbsenceOS,
  title={Absence of short-wavelength sensitive cones in the retinae of seals (Carnivora) and African giant rats (Rodentia).},
  author={Leo Peichl and Kabirou Moutairou},
  journal={The European journal of neuroscience},
  year={1998},
  volume={10 8},
  pages={2586-94}
}
Most non-primate mammals have two types of cone: short-wavelength sensitive (S) and middle-to-long-wavelength sensitive (M/L) cones. In two species of African giant rats, Cricetomys gambianus and C. emini, and in two species of earless seals, Phoca hispida and P. vitulina, the retinal cone types and cone distributions were assessed with antibodies specific for the M/L-cone opsin and the S-cone opsin, respectively. All four species were found to completely lack S-cones, while M/L-cones were… CONTINUE READING