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The tapetum lucidum in the eye of the big‐eye Priacanthus arenatus Cuvier
Author(s) -
Nicol J. A. C.,
Zyznar E. S.
Publication year - 1973
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1973.tb04482.x
Subject(s) - tapetum , biology , anatomy , retina , botany , stamen , neuroscience , pollen , microspore
The big‐eye Priacanthus arenatus Cuvier contains a tapetum lucidum or reflector which lies in the inner region of the choroid. It extends over the entire surface of the fundus, and it consists of several layers of reflecting cells. The cells contain many layers of thin guanine crystals, and there is about 0.5 mg of guanine in a square cm of tapetum. The retina is duplex, and rods are small and very numerous. The tapetum of the big‐eye is compared with those of selachians and sturgeons, which it much resembles.