Fig. 4
Anatomy of the craniofacial skeleton. (A), Volume rendering of the skull of a 12 mm SL zebrafish and (B), a 24 mm SL zebrafish. (C), Lateral view of skull of 24 mm SL zebrafish with segmented bones (left). Cross section of lateral view reveals some internal elements (right). b, basibrachials; ba, branchial arches; boc, basioccipital; d, dentary; dm, dermatocranium; ec, ectopterygoid; eoc, exocciptal; en, entopterygoid; h, hyoid; hm, hyomandibula; io, infraorbital; iop, interopercle; k, kinethmoid; le, lateral ethmoid; m, maxilla; mpt, metapterygoid; op, opercle; os, orbitosphenoid; pj, pharyngeal jaws; pm, premaxilla; pop, preopercle; ps, parasphenoid, q, quadrate; sc, supracleithrum; soc, supraoccipital; sop, subopercle, su, supraorbital. Scale bars, 1 mm.