Ascidia sydneiensis Stimpson, 1855

Material examined: DZUP ASC 120 – 2 ind.; STRI dock, Panama City; 1.0 m, inside bricks; 07/xii/2008; col. R.M. Rocha; DZUP ASC 122 – 4 ind.; 0.5 m, inside bricks; 04/i/2009; col. R.M. Rocha. DZUP ASC 119 – 2 ind.; Marina Flamenco, Panama City; 1.0 m, inside bricks; 06/xii/2008; col. R.M. Rocha; DZUP ASC 121 – 1 ind.; 04/i/ 2009; col. R.M. Rocha.

Tunic forms longitudinal ridges along the siphons; siphons are lobed with indented margins; body musculature on the right side is formed by short fibers perpendicular to the margin of the body; dorsal tubercle is meandering; rectum as a sac-like pouch; anus is multilobed; and the ovary is ramified.

Remarks. The characteristics observed in the present specimens are similar to specimens from the Atlantic coast of Panama (Bonnet & Rocha 2011).