Pelagic tunicates in the China Seas Author Franco, P. Author Dahms, H. - U. Author Lo, W. - T. Author Hwang, J. - S. text Journal of Natural History 2017 2017-03-27 51 15 - 16 917 936 http://dx.doi.org/10.1080/00222933.2017.1293180 journal article 10.1080/00222933.2017.1293180 1464-5262 5180954 Pegea confoederata Morphology Aggregates form with a loose flabby test. There are no posterior projections or protuberances. MI– MII and MIII–MIV touch or fuse mid-dorsally, each muscle pair forming a cross. Muscle bands are short and interrupted before they reach the mid-lateral region. Stomach is spherical. Solitary forms have a pear-shaped test. MI– MII and M3III–MIV touch or fuse, each pair forming a cross. Gut is compact and encircled by a stolon. The length of the aggregate form is up to 150 mm ; the length of the solitary form is up to 120 mm (authors’ personal observations ( Marine Species Identification Portal 2017 ). Biogeography Cosmopolitan, eurythermal species, occurring between ca. 60°N and 45°S . A common salp species. Living near the surface, epipelagic (WoRMS Editorial Board 2017 ).