VL(left)

Cell lineage of regularly developing sea urchin embryo: VL(left)

Cell name	VL(left)
Cleavage number	3
Number of cells after cleavage	8
Cleavage direction (with respect to the A/V axis)	horizontal
Mother cell	L(left)
Sister cell	NL(left)
Progeny	VL(left)M, VL(left)m
Tier
Prospective territory