Abstract
Acarnus are poecilosclerid sponges characterized mainly by cladotylote megascleres. Five species are known on the Brazilian coast: Acarnus innominatus Gray 1867, Acarnus radovani (Boury-Esnault, 1973), Acarnus toxeata Boury-Esnault, 1973, Acarnus nicoleae van Soest, Hooper & Hiemstra, 1991 and Acarnus microxeatus Nascimento & Pinheiro, 2023. This study describes two new Brazilian species, Acarnus hooperi sp. nov. and Acarnus tupiniquim sp. nov., from Rio de Janeiro and Bahia States, respectively, whose diagnosis is the presence of tylostyles, a character formally recorded for the first time in the family Acarnidae and the genus Acarnus. We also describe two of the previously known species, A. innominatus and A. toxeata. Additionally, an identification key for the Acarnus species from the Tropical Western Atlantic is proposed.
References
- Aguilar-Camacho, J.M., Carballo, J.L. & Cruz-Barraza, J.A. (2013) Acarnidae (Porifera: Demospongiae: Poecilosclerida) from the Mexican Pacific Ocean with the description of six new species. Scientia Marina, 77 (4), 677–696. https://doi.org/10.3989/scimar.03800.06A
- Alcolado, P.M. (2002) Catálogo de las esponjas de Cuba. Avicennia, 15 (53), 72.
- Bettcher, L., Fernandez, J.C., Gastaldi, M., Bispo, A., Leal, C.V., Leite, D., Avelino-Alves, D., Clerier, P.H., Rezende, D., Gulart, C.M., Pinheiro, U. & Hajdu, E. (2023) Checklist, diversity descriptors and selected descriptions of a highly diverse intertidal sponge (Porifera) assemblage at Costa do Descobrimento (Bahia, Brazil). Zootaxa, 5277 (3), 443–489. https://doi.org/10.11646/zootaxa.5277.3.2
- Boury-Esnault, N. (1973) Résultats Scientifiques des Campagnes de la ‘Calypso’. Campagne de la ‘Calypso’ au large des côtes atlantiques de l’Amérique du Sud (1961–1962). I. 29. Spongiaires. Annales de l’Institut océanographique, 49, 263–295.
- Cárdenas, P., Pérez, T. & Boury-Esnault, N. (2012) Sponge systematics facing new challenges. Advances in marine biology, 61, 79–209. https://doi.org/10.1016/B978-0-12-387787-1.00010-6
- Carter, H.J. (1876) XLVII.Descriptions and figures of deep-sea sponges and their spicules, from the Atlantic Ocean, dredged up on board H.M.S. ‘Porcupine,’chiefly in 1869 (concluded). Annals and Magazine of Natural History, Series 4, 18 (108), 458–479. https://doi.org/10.1080/00222937608682063
- Dendy, A. (1922) Report on the Sigmatotetraxonida collected by H.M.S. ‘Sealark’ in the Indian Ocean. In: Reports of the Percy Sladen Trust Expedition to the Indian Ocean in 1905. Vol 7. Transactions of the Linnean Society of London, Series 2, 18 (1), 1–164. https://doi.org/10.1111/j.1096-3642.1922.tb00547.x
- Dendy, A. (1896) Catalogue of Non-Calcareous Sponges collected by J. Bracebridge Wilson, Esq., M.A., in the neighbourhood of Port Phillip Heads. Part II. Proceedings of the Royal Society of Victoria, 8, 14–51.
- de Laubenfels, M.W. (1927) The red sponges of Monterey Peninsula, California. Annals and Magazine of Natural History, Series 9, 19 (110), 258–266. https://doi.org/10.1080/00222932708633594
- de Laubenfels, M.W. (1936) A comparison of the shallow-water sponges near the Pacific end of the Panama Canal with those at the Caribbean end. Proceedings of the United States National Museum, 2993 (83), 441–466. https://doi.org/10.5479/si.00963801.83-2993.441
- de Voogd, N.J., Alvarez, B., Boury-Esnault, N., Carballo, J.L., Cárdenas, P., Díaz, M. C., Dohrmann, M., Downey, R., Hajdu, E., Hooper, J.N.A., Kelly, M., Klautau, M., Manconi, R., Morrow, C.C., Pisera, A.B., Ríos, P., Rützler, K., Schönberg, C., Vacelet, J. & van Soest, R.W.M. (2023) World Porifera Database. Acarnus Gray, 1867. Available from: https://www.marinespecies.org/porifera (accessed 30 March 2023) https://doi.org/10.14284/359
- Diaz, M.C. (2005) Common sponges from shallow marine habitats from Bocas del Toro region, Panama. Caribbean Journal of Science, 41 (3), 465–475.
- Grant, R.E. (1836) Animal Kingdom. In: Todd, R.B. (Ed.), The Cyclopaedia of Anatomy and Physiology. Vol. 1. Sherwood, Gilbert, & Piper, London, pp. 1–813.
- Gray, J.E (1867a) On Placospongia, a new generic form of Spongiadae in the British Museum. Proceedings of the Zoological Society of London, 1867 (1), 127–129.
- Hajdu, E., Peixinho, S. & Fernandes, J.C.C. (2011) Esponjas Marinhas da Bahia: Guia de campo e laboratório. Série Livros 45. Museu Nacional, Rio de Janeiro, 276 pp.
- Hechtel, G.J. (1965) A systematic study of the Demospongiae of Port Royal, Jamaica. Bulletin of the Peabody Museum of Natural History. Vol. 6. Peabody Museum of Natural History, New Haven, 103 pp.
- Hechtel, G.J. (1976) Zoogeography of Brazilian Marine Demoo-Australian representatives of Acarnus Gray (Porifera: Demospongiae: Poecilosclerida), with description of a new species. Memoirs of the Queensland Museum, 30 (3), 431–442.
- Hofman, C.C. & Kielman, M. (1992) The excavating sponspongiae. In: Harrison, F.W. & Cowden, R.R. (Eds.), Aspects of Sponge Biology. Academic Press, New York and London, pp. 1–354.
- https://doi.org/10.1016/B978-0-12-327950-7.50021-X
- Hiemstra, F. & Hooper, J.N.A. (1991) Additions to the Indges of the Santa-Marta area, Colombia, with description of a new species. Bijdragen tot de Dierkunde, 61 (4), 205–217.
- https://doi.org/10.1163/26660644-06104002
- Hooper, J.N.A. (2002) Family Acarnidae Dendy, 1922. In: Hooper, J. N. A. & van Soest, R. W. M. (Eds.), Systema Porifera. A guide to the classification of sponges. Vol. 1. Kluwer Academic/Plenum Publishers, New York, Boston, Dordrecht, London and Moscow, pp. 412–431. https://doi.org/10.1007/978-1-4615-0747-5_51
- Hooper, J.N.A. & van Soest, R.W.M. (2002) Systema Porifera. A guide to the classification of sponges. Kluwer Academic/Plenum Publishers, New York, New York, 1708 pp. https://doi.org/10.1007/978-1-4615-0747-5
- Hooper, J.N.A. & Lévi, C. (1993) Poecilosclerida (Porifera: Demospongiae) from the New Caledonia Lagoon. Invertebrate Taxonomy, 7 (5), 1221–1302.
- https://doi.org/10.1071/IT9931221
- Hoshino,T. (1981) Shallow-water Demosponges of western Japan. Journal of Science of the Hiroshima University, 29 (1–2), 47–205 + 207–276.
- Keller, C. (1889) Die Spongienfauna des rothen Meeres (I. Hälfte). Zeitschrift für wissenschaftliche Zoology, 48, 311–405.
- Lavrado, H.P. (2006) Capítulo 1. Caracterização do ambiente e da comunidade bentônica. In: Lavrado, H.P. & Ignacio, B.L. (Eds.), Biodiversidade bentônica da região central da Zona Econômica Exclusiva Brasileira. Série Livros 18. Museu Nacional, Rio de Janeiro, 19–64.
- Lévi, C. (1952) Spongiaires de la côte du Sénégal. Bulletin de l’Institut français d’Afrique noire, Sciences naturelles, 14 (1), 34–59.
- Lévi, C. (1958) Résultats scientifiques des Campagnes de la ‘Calypso’. Campagne 1951–1952 en Mer Rouge (suite). 11. Spongiaires de Mer Rouge recueillis par la ‘Calypso’ (1951–1952). Annales de l’Institut océanographique, 34 (3), 3–46.
- Moraes, F.C. (2011) Esponjas das Ilhas Oceânicas Brasileiras. Série Livros 44. Museu Nacional, Rio de Janeiro, 252 pp.
- Moraes, F.C., Ventura, M., Klautau, M., Hajdu, E. & Muricy, G. (2006) Biodiversidade de Esponjas das Ilhas Oceânicas Brasileiras. In: Alves, J.V. & Castro, J.W.A. (Eds.), Ilhas Oceânicas Brasileiras da pesquisa ao manejo. 1st Edition. Ministério do Meio Ambiente, Brasília, pp. 1–298.
- Morrow, C. & Cardenas, P. (2015) Proposal for a revised classification of Demospongiae (Porifera). Frontiers in Zoology, 12 (7), 1–136. https://doi.org/10.1186/s12983-015-0099-8
- Muricy, G., Santos, C.P., Batista, D., Lopes, D.A., Pagnoncelli, D., Monteiro, L.C., Oliveira, M.V., Moreira, M.C.F., Carvalho, M.S., Melão, M., Klautau, M., Dominguez, P.R., Costa, R.N., Silvano, R.G., Schwientek, S., Ribeiro, S.M., Pinheiro, U. & Hajdu, E. (2006) Capítulo 3. Porifera. In: Lavrado, H.P. & Ignácio, B.L. (Eds.), Biodiversidade bentônica da região central da Zona Econômica Exclusiva brasileira. Série Livros 18. Museu Nacional, Rio de Janeiro, pp. 1–389.
- Muricy, G., Hajdu, E., Oliveira, M.V., Heim, A.S., Costa, R.N., Lopes, D.A., Melão, M., Rodriguez, P.R.D., Silvano, R., Monteiro, L.C. & Santos, C.P. (2007) Filo Porifera. In: Lavrado, H.P & Viana, M.S. (Eds.), Atlas de invertebrados marinhos da região central da zona econômica exclusiva brasileira. Parte 1. Série Livros 25. Museu Nacional, Rio de Janeiro, pp. 25–57.
- Muricy, G., Esteves, E.L., Moraes, F., Santos, J.P., Silva, S.M., Klautau, M. & Lanna, E. (2008) Biodiversidade Marinha da Bacia Potiguar – Porifera. Série livros 29. Museu Nacional, Rio de Janeiro, 156 pp.
- Muricy, G., Lopes, D.A., Hajdu, E., Carvalho, M.S., Moraes, F.C., Klautau, M., Menegola, C. & Pinheiro, U. (2011) Catalogue of Brazilian Porifera. Série Livros 46. Museu Nacional, Rio de Janeiro, 300 pp.
- Nascimento, E. & Pinheiro, U. (2023) A new species of Acarnus Gray, 1867 (Porifera, Demospongiae, Acarnidae) from NE Brazil. Zootaxa, 5293 (3), 521–540. https://doi.org/10.11646/zootaxa.5293.3.5
- Ridley, S.O. (1884a) Spongiida. In: Report on the Zoological Collections made in the Indo-Pacific Ocean during the Voyage of H.M.S. ‘Alert’, 1881–2. British Museum Natural History, London, 366–482.
- Rützler, K., Piantoni, C., Van Soest, R.M.W. & Díaz, M.C. (2014) Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay. Zootaxa, 3805 (1), 1–29. https://doi.org/10.11646/zootaxa.3805.1.1
- Sollas, W.J. (1885) A Classification of the Sponges. Annals and Magazine of Natural History, Series 5, 16 (95), 1–395. https://doi.org/10.1080/00222938509459901
- Topsent, E. (1892b) Diagnoses d’éponges nouvelles de la Méditerranée et plus particulièrement de Banyuls. Archives de Zoologie expérimentale et générale, Series 2, 10 (Notes et Revue 6), 17–28.
- Topsent, E. (1928) Spongiaires de l’Atlantique et de la Méditerranée provenant des croisières du Prince Albert ler de Monaco. Résultats des campagnes scientifiques accomplies par le Prince Albert I. Monaco, 74, 1–376.
- Ugalde, D., Fernandez, J.C.C., Gómez, P., Lôbo-Hajdu, G. & Simões, N. (2021) An update on the diversity of marine sponges in the southern gulf of Mexico coral reefs. Zootaxa, 5031 (1), 1–112. https://doi.org/10.11646/zootaxa.5031.1.1
- Vacelet, J. (1960a) Eponges de la Méditerranée nord-occidentale récoltées par le ‘Président Théodore Tissier’ (1958). Revue des Travaux de l’Institut des Pêches maritimes, 24 (2), 257–272.
- van Soest, R.W.M. (1984) Marine sponges from Curaçao and other Caribbean localities. Part III. Poecilosclerida. Studies on the Fauna of Curaçao and other Caribbean Islands, 62 (191), 1–173.
- van Soest, R.W.M., Hooper, J.N.A. & Hiemstra, F. (1991) Taxonomy, phylogeny and biogeography of the marine sponge genus Acarnus (Porifera: Poecilosclerida). Beaufortia, 42 (3), 49–88.
- van Soest, R.W.M., Zea, S. & Kielman, M. (1994) New species of Zyzzya, Cornulella, Damiria, and Acheliderma (Porifera: Poecilosclerida), with a review of fistular genera of Iophonidae. Contributions to Zoology, 64 (3), 163–192. https://doi.org/10.1163/26660644-06403003
- Zea, S. (1987) Esponjas del Caribe Colombiano. Catálogo Científico, Bogotá, 286 pp.