Diversity of marine bryozoans inhabiting demosponges in northeastern Brazil Author Almeida, Ana C. S. Author Souza, Facelucia B. C. Author Menegola, Carla Author Vieira, Leandro M. text Zootaxa 2017 4290 2 281 323 journal article 32714 10.11646/zootaxa.4290.2.3 eeec8306-8c71-4db6-834a-c70396d43a82 1175-5326 892719 0AE2706B-F77D-4903-B3A6-BB11891CD67B Celleporaria atlantica ( Busk, 1884 ) ( Figs. 38–41 ) Cellepora mamillata var. atlantica Busk, 1884 : 199 (part), pl. 35, fig. 4. Celleporaria atlantica : Winston et al. 2014: 191 , figs. 33A-D, 34, 35 (cum syn.); Almeida et al. 2015b : 4 . Material examined. UFBA 1180 , Camamu Bay , 13°53’S , 38°59’W , 18–20 m , coll . October 2012 (on sponge Topsentia ophiraphidites ); UFBA 1181 , UFBA 2389–90 , Camamu Bay , 13°53’S , 38°59’W , 18–20 m , coll . October 2012 (on sponge Haliclona ( Soestella ) melana ); UFBA 1188 , UFBA 2391–92 , Camamu Bay , 13°53’S , 38°59’W , 18–20 m , coll . October 2012 (on sponge Bubaris sp.). Remarks. Celleporaria atlantica was recently redescribed by Winston et al. (2014), who studied original specimens from Busk (1884) . Although Busk (1884) described C. atlantica from Brazil ( Bahia state) and Australia (Possession Island ), Winston et al. (2014) elucidated that specimens from Possession Island truly belong to Celleporaria fusca ( Busk, 1854 ) and thus C. atlantica is restricted to Brazilian waters. Busk (1884) found C. atlantica on seafloors composed of gravel and shells. Other species of Celleporaria are commonly found associated with corals and rocks (e.g., Winston 1986 ; Winston 2005 ). Celleporaria atlantica has encrusting colonies, autozooids with almost rounded orifice with a shallow and wide sinus, suboral avicularium placed on a pointed umbo ( Fig. 40 ), small leaf-shaped avicularia associated with marginal areolar pores and spatulate avicularia occurring between zooids ( Fig. 41 ) (Winston et al. 2014). Celleporaria atlantica is often found at Bahia state forming nodular colonies attached to hard substrata such as rocks and calcareous nodules. Colonies of C. atlantica here studied are unilaminar and were encrusting the rugose sponge Bubaris sp. ( Fig. 8 ) as well as the smooth-textured sponges Haliclona ( Soestella ) melana and Topsentia ophiraphidites . Distribution. Atlantic: endemic to Brazil ( Bahia and Espírito Santo ) (Winston et al. 2014).