Used with permission. Colonies are gray to white in color, with individual zooids quadrangular in shape and of variable size. Distinct grooves separate individuals. The opesia themselves are hoof-shaped. Avicularia between zooids are arch-shaped, with the point of the mandible bent.
Spicules occur in the body cavity and resemble calipers.
However, T. gothica had originally been described from the Pacific Ocean around Mexico. T. gothica specimens from the Pacific have large ovicells that may brood several embryos at once. T. floridana occurs from Cape Hatteras south to Florida, the Gulf of Mexico and the Caribbean. T. floridana can be collected year-round in Florida, but is most abundant in the winter months. It was reported by Winston to be the most abundant bryozoan encrusting stems of the hydroid Thyroscuphus ramosus in winter.