ON THE FALCIFORM PROCESS, VITREAL VESSELS AND OTHER RELATED STRUCTURES OF THE TELEOST EYE-II:VASCULARIZATION

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In the previous paper5), the author discussed the interrelationship of the falciform process, vitreal vessels and other related structures of the teleost eye from the standpoint of the vascularization both in the vitreous cavity and on the retina. Further, in order to study the vascularization from the hyaloid artery, especially its communication with the choroid, he adopted a method of Neoprene latex injection and obtained following results. 1) Generally, the main vessel of the hyaloid artery appears at the optic disc and then runs ventrally along the embryonic fissure to the lens muscle or campanula Halleri, thus feeding the latter. The vein from the lens muscle and that from the iris congregate into the ventral choroidal vein. 2) The branches from the main vessel, either in the vitreous cavity or on the retina, go distally into the embryonic fissure, when it is present, and communicate with the choriocapillaris, ventral choroidal vein and other choroid vessels, never rejoining the main vessel. When the embryonic fissure is lacking, the branches over the retina are received by the peripheral annular vessel, which passes into the ventral choroidal vein at the ventral ora. 3) The presence of the lentiform body, a plexus interpolated in the hyaloid artery, is not regular among species. The lentiform body, when present, communicates with the choroid in some species.
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