Bryozoa on disarticulated bivalve shells from Todos os Santos Bay, northeastern Brazil, with the description of two new species Author Almeida, Ana C. S. Author Souza, Facelucia B. C. Author Farias, Jamile Author Alves, Orane F. S. Author Vieira, Leandro M. text Zootaxa 2018 2018-06-18 4434 3 401 428 journal article 29876 10.11646/zootaxa.4434.3.1 5cb7d5d0-e5da-4227-ad4c-f7435f09336d 1175-5326 1292019 4E6E9F71-801E-4657-91DA-51F0B06807F6 Celleporaria mordax ( Marcus, 1937a ) ( Fig. 4A, B ; Table 5 ) Holoporella mordax MARCUS, 1937A: P. 123, PL. 24, fIg. 65A–F. Celleporaria mordax : WINSTON et al ., 2014 : P. 195, fIg. 36 (CUM SYN.). Material examined. UFBA 1639, UFBA 1655, UFBA 3321, UFBA 3322, on valves of Pinctada imbricata . Description. Colony encrusting ( Fig. 4A ), unilaminar. Autozooids irregularly shaped, surrounded by few large marginal pores. Frontal wall imperforate, rough, with small nodules. Primary orifice ( Fig. 4B ) D-shaped, with a small, U-shaped sinus (occasionally with two indentations); 2–4 oral spines. Suboral avicularium small, elliptical, rostrum serrated, obliquely oriented within the peristome. Interzooidal avicularium large, spatulate, with beak-like rostrum and complete crossbar. Ovicell not observed. Remarks. This species is frequently found subtidally on hard substrata in southeastern Brazil ( Winston et al . 2014 ). This is the first record of C. mordax from northeastern Brazil . Distribution. Western Atlantic: Brazil ( Bahia , Rio de Janeiro and São Paulo ) ( Winston et al . 2014 ; present study).