Crisia pseudosolena ( Marcus, 1937 )

Almeida, Ana C. S., Souza, Facelucia B. C., Menegola, Carla & Vieira, Leandro M., 2017, Diversity of marine bryozoans inhabiting demosponges in northeastern Brazil, Zootaxa 4290 (2), pp. 281-323 : 289

Crisia pseudosolena ( Marcus, 1937)

( Figs. 18–21 )

Crisevia pseudosolena Marcus, 1937: 19 , pl. 1, fig. 4B, pl. 2, figs. 4A–D.

Crisia pseudosolena: Vieira et al. 2008: 34 ; Ramalho et al. 2009: 35, figs. 2A–F, 3A (cum syn.).

Material examined. UFBA 1577 , UFBA 2346–47 , Todos os Santos Bay, 13°00’S, 38°32’W, 3–8 m, coll. 2013 (on sponge Desmapsamma anchorata ) ; UFBA 1191 , UFBA 2348 , Camamu Bay , 13°53’S, 38°59’W, 18–20 m, coll. October 2012 (on sponge Bubaris sp.).

Remarks. Crisia pseudosolena is characterized by having zooids with longitudinally elongate pseudopores, transverse wrinkles in calcification near distal ends of peristomes, circular autozooidal apertures ( Fig. 19 ) and a pear-shaped gonozooid lacking an ooeciostome ( Fig. 21 ) ( Marcus 1937; Ramalho et al. 2009). Ramalho et al. (2009) gave a complete characterization of C. pseudosolena based on specimens found attached to several invertebrates and also to unidentified sponges. In Brazil, at least a second species, Crisia cylindrica Busk, 1886 , were previously reported growing on an unidentified sponge (Vieira et al. 2012). Here we found colonies of C. pseudosolena encrusting the sponges Desmapsamma anchorata and Bubaris sp. This is the first record of C. pseudosolena in Bahia State.

Distribution. Atlantic: endemic to Brazil (Pernambuco, Bahia, Rio de Janeiro, São Paulo and Paraná) (Ramalho et al. 2009; present study).

Figures

FIGURES 18 – 23. 18 – 21. Crisia pseudosolena, UFBA 1577. 18, Branching colony and rhizoid; 19, Close-up of autozooids; 20, Entire colony with gonozooid; 21, Close-up of gonozooid. 22 – 23. Amathia distans, UFBA 1578. 22, Entire colony; 23, Close-up of stolon and autozooids. Scale bars: 18, 20 = 500 µm; 19, 21 – 23 = 100 µm.