Beania maxilladentata Ramalho, Muricy & Taylor, 2010

Vieira, Leandro M., Migotto, Alvaro E. & Winston, Judith E., 2010, Shallow-water species of Beania Johnston, 1840 (Bryozoa, Cheilostomata) from the tropical and subtropical Western Atlantic, Zootaxa 2550, pp. 1-20 : 8

Beania maxilladentata Ramalho, Muricy & Taylor, 2010

( Fig 9–11 , 21 ; Table 1 )

Beania maxilladentata Ramalho et al., 2010: 504 , fig. 4.

Material examined. MZUSP 400.

Remarks. Beania maxilladentata was recently described from Rio de Janeiro state on bryozoans, shells, serpulids and algae in 3–6 m of water. The species is characterized by small spines that never overarch the frontal membrane and by the presence of a strongly curved avicularian mandible with one or two tooth-shaped accessory structures.

Distribution. Atlantic. Brazil: Rio de Janeiro ( Ramalho et al. 2010; present study).

Figures

FIGURES 8 – 13. SEM of uniserial species of Beania from the Brazilian coast. 8. Beania klugei Cook, 1968, MZUSP 391, São Paulo state, close-up of distal end of a zooid, note the shape of avicularium and the two distal projections of zoecium; 9 – 11, Beania maxilladentata Ramalho, Muricy & Taylor, 2010, MZUSP 400, Rio de Janeiro state; 9, portion of colony; 10, lateral view of a zooid, note the small lateral spines; 11, close-up of paired distal avicularia; 12 – 13, Beania mirabilissima n. sp., MZUSP 405 (Holotype), São Paulo state; 12, three zooids of a colony; 13, close-up of a zooid, note the large gap between oral spines and most distal marginal spines.

FIGURES 18 – 23. Light micrography of uniserial species of Beania from the Brazilian coast. 18. Beania australis Busk, 1852, MZUSP 377, Alagoas state; 19. Beania cupulariensis Osburn, 1914, MZUSP 381, São Paulo state; 20. Beania klugei Cook, 1968, MZUSP 391, São Paulo state; 21. Beania maxilladentata Ramalho, Muricy & Taylor, 2010, MZUSP 400, Rio de Janeiro state; 22 – 23. Beania mirabilissima n. sp., MZUSP 405 (Holotype), São Paulo state; 22, colony; 23, lateral view of a zooid.