NL(left)1l

Cell lineage of regularly developing sea urchin embryo: NL(left)1l

Cell name	NL(left)1l
Cleavage number	5
Number of cells after cleavage	32
Cleavage direction (with respect to the A/V axis)	horizontal
Mother cell	NL(left)1
Sister cell	NL(left)1u
Progeny	NL(left)1lu, NL(left)1ll
Tier	an2
Prospective territory