Celleporaria mordax ( Marcus, 1937a )

Almeida, Ana C. S., Souza, Facelucia B. C., Farias, Jamile, Alves, Orane F. S. & Vieira, Leandro M., 2018, Bryozoa on disarticulated bivalve shells from Todos os Santos Bay, northeastern Brazil, with the description of two new species, Zootaxa 4434 (3), pp. 401-428 : 407-408

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).

Figures

FIGURE 4. Celleporaria mordax (MARCUS, 1937A), UFBA 1639. A. OVERVIEW Of A COLONY.B. CLOSE-UP Of AUTOZOOIDS, SHOWINg THE D-SHAPED PRIMARY ORIfICE, BASES Of ORAL SPINES, SUBORAL AVICULARIUM WITH SERRATE ROSTRUM, AND A LARgE, SPATULATE AVICULARIUM. SCALE BARS: A, 200 µM; B, 100 µM.