A new species of Cellaria (Bryozoa: Cheilostomata) from northeastern Brazil, with a tabular identification key to the Atlantic species

ABSTRACT A new species of the erect cheilostome bryozoan Cellaria Ellis & Solander, 1786 is described from Bahia, NE Brazil. Cellaria oraneae sp. nov. is the first formally characterized species of the genus reported from Northeastern coast of Brazil, distinguished from all congeners by the combination of hexagonal autozooids and rhomboid fertile zooids, hexagonal interzooidal avicularium with sagittate foramen, completely immersed ovicell with oval aperture and proximal rectangular lip. A brief discussion of the diversity of Cellaria from the Atlantic Ocean and a tabular identification key to these species are also provided.

摘要 记述了采自巴西东北部巴伊亚州的直立唇口目苔藓虫Cellaria属（Ellis & Solander, 1786）一新种。Cellaria oraneae新种（sp. nov.）是巴西东北海岸首个被正式记述的该属物种，其以六边形个员与菱形生殖个员、具箭形口孔的六边形虫间鸟头体、完全内埋且开孔呈卵圆形并带有近端矩形唇缘的卵室这一组合特征，区别于所有同属物种。本文还简要讨论了大西洋海域Cellaria属的物种多样性，并附有该类群的表格型物种检索表。