VL(left)M

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

Cell name	VL(left)M
Cleavage number	4
Number of cells after cleavage	16
Cleavage direction (with respect to the A/V axis)	horizontal
Mother cell	L(left)
Sister cell	VL(left)m
Progeny	VL(left)M1, VL(left)M2
Tier
Prospective territory