VL(right)m

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

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