Table 1.

Extraocular and jaw muscles in the zebrafish

Region and muscles	Abbreviation	Innervation
Extraocular
Superior oblique	so	IV
Inferior oblique^1-a	io^1-a	III
Superior rectus	sr	III
Inferior rectus	ir	III
Medial rectus	mr	III
Lateral (posterior) rectus^1-b	lr^1-b	VI
Mandibular arch
Intermandibularis anterior	ima	V
Intermandibularis posterior	imp	V
Abductor mandibulae	am	V
Levator arcus palatini	lap	V
Dilator operculi	do	V
Hyoid arch
Interhyal	ih	VII
Hyohyal	hh	VII
Abductor hyomandibulae	ah	VII
Abductor operculi	ao	VII

Nomenclatures are according to Schilling and Kimmel (1997).
↵F1-a The inferior oblique (io) muscle, which is normally innervated by the third nerve, appears not to be innervated by the GFP-labeled fibers between 72 and 96 hr in the Isl1-GFP line, suggesting that, among nIII neurons, those supplying the io do not express GFP. The rest of three muscle groups (mr, sr, and ir) are innervated by the GFP-labeled fibers by 72 hr.
↵F1-b GFP is not expressed in the abducens motor (nVI) neurons in the Isl1-GFP line. Consequently, the lateral rectus (lr) muscle is not innervated by the GFP-labeled fibers.