Histological Structure of Tectum Mesencephalia (Optic Tectum) in Eumeces schneiderii (Daudin, 1802)

Abstract

The histological structure of the mesencephalia (Optic tectum) in Eumeces schneiderii (Daudin, 1802) had been investigated. The histological study revealed that the number of major strata of the optic tectum were three, organized in fourteen strata. The periventricular layer, which extends from the first stratum to the fifth stratum, is called the stratum griseum et album periventriculare (SGAP).

The central layer which comprises the sixth stratum is called the stratum album centrale (SAC) and the seven stratum is called the stratum griseum centrale (SGC). The superficial layer, which extend from the eight stratum to the fourteenth stratum and the layer extend from eight to the thirteenth are called the stratum griseum album superficial (SGAS), while the fourteenth stratum is called the stratum opticum (SO).