Pyrosoma atlanticum

Pyrosoma atlanticum is a pelagic species of marine colonial tunicate in the class Thaliacea found in temperate waters worldwide.

Description
A colony of P. atlanticum is cylindrical and can grow up to 60 cm (2.0 ft) long and 4-6 cm (1.6-2.4 in) wide. The constituent zooids form a rigid tube, which may be pale pink, yellowish, or bluish.