Steginoporella magnilabris ( Busk, 1854 )

Vieira, Leandro M., Almeida, Ana C. S. & Winston, Judith E., 2016, Taxonomy of intertidal cheilostome Bryozoa of Maceió, northeastern Brazil. Part 1: Suborders Inovicellina, Malacostegina and Thalamoporellina, Zootaxa 4097 (1), pp. 59-83 : 77

Steginoporella magnilabris ( Busk, 1854)

( Fig. 36 )

Membranipora magnilabris Busk, 1852 b: vi (explanation of pl. 65), pl. 65, fig. 4; 1854: 62 (in part), 113. [ Brazil: Bahia] Steginoporella magnilabris: Tilbrook, 2006: 79 , pl. 13A–B. [ Solomon Islands]

Steginoporella magnilabris: Vieira et al., 2008: 20 . [ Brazil: Bahia and Espírito Santo]

Steginoporella magnilabris: Winston et al., 2014: 150 , fig. 6 (cum syn.). [ Brazil: Rio de Janeiro and Espírito Santo] Steginoporella magnilabris: Winston, 2016: 8 , fig. 2. [ USA: Florida]

Material examined. UFAL 295, UFPE 0 34, UFPE 0 82, Ipioca (Ponta do Meirim), Maceió, Alagoas State, Brazil, 9º31'30" S, 35º35'10" W, intertidal, on stones, coll. 13 January 2009 by L.M. Vieira and M.D. Correia.

Remarks. A complete redescription of the type specimens from Abrolhos, NE Brazil, was given by Tilbrook (2006). Winston et al. (2014) provided a description, additional remarks and figures of specimens from Rio de Janeiro. This species may have encrusting to foliaceous colonies.

Distribution. Steginoporella magnilabris is widespread in tropical-subtropical waters around the world, but some records require reexamination ( Tilbrook, 2006). In Brazil, this species was previously reported from Bahia, Espírito Santo and Rio de Janeiro. This is the first record of the species in Alagoas.

Figures

FIGURES 36 – 39 Species of Thalamoporellina from Maceió, Maceió, Alagoas, Brazil; 36, Steginoporella magnilabris, UFPE 0 82, Meirim, Maceió, Alagoas, Brazil, group of zooids, with A-zooids (small) and B-zooids (large); 37 – 39, Thalamoporella floridana, UFPE 0 79, Sobral, Maceió, Alagoas, Brazil; 37, group of zooids and one interzooidal avicularium; 38, close-up of orifice; 39, close-up of internal wall with some spicules (calipers).