Rhynchozoon rostratum

Autor: Ramalho, Laís V., Taylor, Paul D., Moraes, Fernando Coreixas, Moura, Rodrigo, Amado-Filho, Gilberto M., Bastos, Alex C.
Rok vydání: 2018
Předmět:
DOI: 10.5281/zenodo.5952393
Popis: Rhynchozoon aff. rostratum (Busk, 1856) (Fig. 6D–F) Rhynchozoon sp.: Reis et al., 2016: supplementary table. Rhynchozoon rostratum: Bastos et al., 2018: table 1. Material examined. Abrolhos Bank, Bahia State, Brazil: MNRJ-Bry1338, Parcel dos Abrolhos, 15 m depth, February 2014, col. R. Moura, G. Amado-Filho & A. Bastos; MNRJ-Bry1374, Parcel dos Abrolhos, 4 m depth, February 2014, col. R. Moura, G. Amado-Filho & A. Bastos. Short description. Colonies encrusting, multilamellar; zooids initially orderly but becoming irregularly arranged. Frontal wall tuberculate with areolar pores only (Fig. 6D). Primary orifice with distinct rounded sinus, hidden by the development of the peristome; tubercles sometimes present, varying in number and size (Fig. 6D, E). Oral and frontal avicularia of similar shape and size, crossbar complete, the frontal avicularium triangular, diamond-shaped and distolaterally or laterally directed (Fig. 6E); oral avicularium single (Fig. 6F) directed laterally. Ovicells not observed. Geographic distribution. Indonesia, E. Pacific, Caribbean and Gulf of Mexico (Busk 1856; Winston & Heimberg 1986); Abrolhos Bank, Bahia State (Reis et al. 2016; Bastos et al. 2018; present study). Remarks. Rhynchozoon verruculatum (Smitt, 1873) is very similar to R. rostratum, but it differs from the latter in having larger zooids, a shallow U-shaped sinus, more elongated diamond-shaped frontal avicularia, and ovicells that are completely immersed. Rhynchozoon brasiliensis Almeida et al., 2017, also known from Bahia State, has a primary orifice with a V-shaped sinus, the peristomial avicularium is absent, and the frontal avicularium is variously oriented. Two other Brazilian Rhynchozoon species are distinct: R. coalitum Vieira et al., 2010 has only a suboral avicularium and lacks vicarious avicularia, while R. phrynoglossum Marcus, 1937 has large vicarious avicularia with truncate or tongue-shaped mandibles. The colonies found in the studied cores were poorly preserved, making a more precise identification difficult.
Published as part of Ramalho, Laís V., Taylor, Paul D., Moraes, Fernando Coreixas, Moura, Rodrigo, Amado-Filho, Gilberto M. & Bastos, Alex C., 2018, Bryozoan framework composition in the oddly shaped reefs from Abrolhos Bank, Brazil, southwestern Atlantic: taxonomy and ecology, pp. 155-186 in Zootaxa 4483 (1) on pages 177-180, DOI: 10.11646/zootaxa.4483.1.6, http://zenodo.org/record/1437570
{"references":["Busk, G. (1856) Zoophytology. Quarterly Journal of Microscopical Science, 4, 176 - 179.","Reis, V. M., Karez, C. S., Mariath, R., Moraes, F. C., Carvalho, R. T., Brasileiro, P. S., Bahia, R. G., Lotufo, T. M. C., Ramalho, L. V., Moura, R. L., Francini-Filho, R. B., Pereira-Filho, G. H., Thompson, F. L., Bastos, A. C., Salgado, L. T. & Amado-Filho, G. M. (2016) Carbonate production by benthic communities on shallow coralgal reefs of Abrolhos Bank, Brazil. PLoS ONE, 11 (4), e 0154417. https: // doi. org / 10.1371 / journal. pone. 0154417","Bastos, A. C., Moura, R. L., Moraes, F. C., Vieira, L. S., Braga, J. C., Ramalho, L. V., Amado-Filho, J. M., Magdalena, U. R. & Webster, J. M. (2018) Bryozoans are Major Modern Builders of South Atlantic Oddly Shaped Reefs. Scientific Reports, 8 (9638). 1 - 11. https: // doi. org / 10.1038 / s 41598 - 018 - 27961 - 6","Winston, J. E. & Heimberg, B. F. (1986) Bryozoans from Bali, Lombok, and Komodo. American Museum Novitates, 2847, 1 - 49.","Smitt, F. A. (1873) Floridan Bryozoa collected by Count L. F. de Pourtales, Part 2. Kongliga Svenska Vetenskaps-Akademiens Handlingar, 11 (4), 1 - 83.","Almeida, A. C. S., Souza, F. B. C., Menegola, C. & Vieira, L. M. (2017) Diversity of marine bryozoans inhabiting demosponges in northeastern Brazil. Zootaxa, 4290 (2), 281 - 323. https: // doi. org / 10.11646 / zootaxa. 4290.2.3","Vieira, L. M., Gordon, D. P., Souza, F. B. C. & Haddad, M. A. (2010) New and little-known cheilostomatous Bryozoa from the south and southeastern Brazilian continental shelf and slope. Zootaxa, 2722, 1 - 30.","Marcus, E. (1937) Bryozoarios marinhos brasileiros I. Boletim da Faculdade de Filosofia, Ciencias e Letras, Universidade de Sao Paulo, Zoologia, 1, 5 - 224. https: // doi. org / 10.11606 / issn. 2526 - 4877. bsffclzoologia. 1937.113912"]}
Databáze: OpenAIRE
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