Fig. 8. Uropterygius alboguttatus, USNM 338657, 350 in Revisions of Anatomical Descriptions of the Pharyngeal Jaw Apparatus in Moray Eels of the Family Muraenidae (Teleostei: Anguilliformes)

Fig. 8. Uropterygius alboguttatus, USNM 338657, 350 mm. (A) Left lateral view of left fourth gill arch and associated musculature, removed from body, circular fibers of SO removed to expose longitudinal fibers of DR, hypaxial retractor removed. (B) Medial view of A. Note insertion of single branch of LI2 on anterior end of UPT and posterior insertion point of LE4 near Eb4-Cb4 articulation. AD, adductor dorsalis; Cb, ceratobranchial; DR, dorsal retractor; Eb, epibranchial; LE levator externus; LI, levator internus; LPT, lower pharyngeal toothplate; UPT, upper pharyngeal toothplate.