Fig. 9. Uropterygius alboguttatus, USNM 338657, 310 in Revisions of Anatomical Descriptions of the Pharyngeal Jaw Apparatus in Moray Eels of the Family Muraenidae (Teleostei: Anguilliformes)

Fig. 9. Uropterygius alboguttatus, USNM 338657, 310 mm. Left lateral view of left fourth gill arch and associated musculature in situ, posterior end of pharyngocleithralis and anterior end of hypaxialis excised at red lines to expose hypaxial retractor; LE4 passes medial to the insertion of HR to insert more posteriorly (see also Fig. 10). AD, adductor dorsalis; Cb, ceratobranchial; Eb, epibranchial; Ep, epaxialis; HR, hypaxial retractor; Hy, hypaxialis; LE levator externus; LI, levator internus; Pcl, pharyngocleithralis; SO/DR, sphincter oesophagi/dorsal retractor; Sph, subpharyngealis.