Perophora

Tibiania Perophora is a sea squirt genus in the family Perophoridae.

A colony consists of a number of zooids which bud off from a long slender stolon.

A Perophora colony consists of a system of stolons from which individual zooids arise at intervals.

Other distinguishing characteristics are that Perophora has a horizontal gut loop with a short rectum and a testis with usually one, but up to four lobes, situated in the gut loop.

In Ecteinascidia the gut loop is curved, the rectum long and the testis multi-lobed.

Perophora listeri ; A. slightly magnified; B. further magnified; ascidiozooids in right, left and lateral aspects
a. branchial siphon b. atrial siphon