Wedgetail Filefish

Dorsal soft rays (total): 24 - 26; Analspines: 0; Analsoft rays: 25 - 28; Vertebrae: 19

Paramonacanthus barnardi Fraser-Brunner

The adductor mandibulae and levator arcus palatini are as for S. auratus, and the dilatator operculi is more parallel fibered. The retractor interoperculi is better developed. The adductor superficialis pelvicus is single, as is the arrector ventralis pelvicus. The erector dorsalis to the first spine is contained in a fairly deep depression and is partially overlain dorsally by a lateral flange of the pterygiophore. The anterodorsal portion of the obliquus inferioris is as for S. auratus.

Chaetoderma spinosissimus (Quoy and Gaimard)

A 1α′ is rather poorly developed, and A 1γ is visible laterally between A 1α and Aβ’. A 3 is well developed, and visible anterior to A 2β. The levator operculi originates more from the pterotic and posttemporal than from the supracleithrum.

Rectus ventralis II has developed extra fibers on its medial surface which join their antimeres in the midline. The fibers are separated from the more anterior section by the anterior tendon of the sternobranchialis to hypobranchial 2 (see Figure 111 of Aluterus for the extreme of this condition). The ventral portion of rectus ventralis IV is well developed. In both the transversi ventrales, the relative positioning of the sections crossing over each other is reversed; i.e., the anterior left section lies dorsal to the section arising from the anterior right. The muscle fibers of the arrector ventralis pelvicus and the adductor superficialis pelvicus are virtually absent, but fairly well-developed tendons remain. The residual inclinator of the anal fin is aponeurotic, with no muscle fibers visible. The spinalis is poorly developed, and the transversus cutaneous does not reach the postcleithrum dorsally.