antapex


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antapex

(ant -ay-peks) (solar antapex) See apex.
References in periodicals archive ?
Cells long and thin, fusiform, with a thin "neck" and slightly sigmoid posterior part of the hypotheca, in lateral view inflated in its middle part (midbody), gradually diminishing backward, bearing two terminal spinules at the antapex, directed posteriorly.
R3 is the longest and the thickest, almost straight or slightly curved backward, almost reaching the level of the antapex.
Hypotheca is cuneate in its posterior portion, with a markedly attenuated antapex tilted toward the ventral part of the cell, dorsally convex, narrowly rounded at the antapex, and strongly concave between the antapex and LSL.
Hypotheca is cuneate in its posterior portion, dorsally convex, narrowly rounded at the antapex, and slightly concave between the antapex and LSL.
The sulcus does not penetrate into the epitheca and does not reach the antapex (Fig.
Hypotheca is slightly longer in its left part, sometimes bearing a small spine at the antapex.
Hypotheca is half the length of the epitheca, slightly depressed at the antapex, with two long, very divergent, thin spines, and two prominent sulcal lists (the left one being more prominent).