What do we know about Cassis tuberosa (Mollusca: Cassidae), a heavily exploited marine gastropod?

Thelma Lúcia Pereira Dias, Ellori Laíse Silva Mota, Rafaela Cristina de Souza Duarte, Rômulo Romeu da Nóbrega Alves


Cassis tuberosa is a key species in reefs and sandy beaches, where it plays an essential role as a predator of echinoderms (sea urchins and sand dollars). Due to the beauty of its shell, it is one of the most exploited species for trade as marine souvenirs throughout its distribution in the Western Atlantic. Despite its ecological importance, there is little available information about population and biological data or the impacts of its removal from its natural habitats. Considering the economic and ecological importance of this species, this study provides a short review of existing studies and highlights research and conservation needs for this highly exploited marine gastropod.


Brazil; Predatory gastropod; Marine curio trade; Species conservation; Shell trade

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Abbott RT (1968) Helmet shells of the world (Cassidae): part 1. In: Abbott RT (ed) Indo-Pacific Mollusca, The department of Mollusks - Academy of Natural Sciences of Philadelphia, Vol. 2, pp. 7–201

Ardila N, Navas GR, Reyes J (eds.) Libro rojo de los invertebrados marinos de Colombia. INVEMAR. Ministerio del Medio Ambiente. La serie Libros rojos de especies amenazadas de Colombia. Bogotá, Colombia, pp. 86–87

Alves RRN, Mota ELS, Dias TLP (2017) Use and commercialization of animals as decoration. Chapter 14. In: Alves RRN, Albuquerque UP (eds) Ethnozoology (in press).

Alves RRN, Dias TLP (2010) Usos de invertebrados na medicina popular no Brasil e suas implicações para conservação. Tropical Conservation Science 3:159–174

Ceranka T, Złotnik M (2003) Traces of cassid snails predation upon the echinoids from the Middle Miocene of Poland. Acta Palaeontologica Polonica 48:491–496

Cornman I (1963) Toxic properties of the saliva of Cassis. Nature 200:88–89

Dias TLP, Mota ELS (2015) First record of Cassis tuberosa spawning in the wild (north-east Brazil). Marine Biodiversity Records 8:1–3

Dias TLP, Alves RRN, Léo-Neto NA (2010) Zooartesanato marinho da Paraíba. In: Alves RRN, Souto WMS, Mourão JS (eds) A Etnozoologia no Brasil: importância, status atual e perspectivas. vol. 7. 1 ed. NUPEEA, Recife, PE, Brazil, pp. 513–534

Dias TLP, Léo-Neto NA, Alves RRN (2011) Molluscs in the marine curio and souvenir trade in NE Brazil: species composition and implications for their conservation and management. Biodiversity and Conservation 20:2393–2405

Engstrom NA (1982) Immigration as a factor in maintaining populations of the sea urchin Lytechinus variegates (Echinodermata: Echinoidea) in seagrass beds on the southwest coast of Puerto Rico. Studies on Neotropical Fauna and Environment 17:51–60

Foster RW (1947) Cassis tuberosa L. feeding on an echinoid (Clypeaster rosaceus L.). Nautilus 61:35–36

Gasparini JL, Floeter SR, Ferreira CEL, Sazima I (2005) Marine ornamental trade in Brazil. Biodiversity and Conservation 14:2883–2899

Gerace DT, Lindsay WJ (1992) Cassis in captivity: an ongoing research project. In: Eshbaugh WH (ed) Proceedings of the 4th Symposium on the Natural History of the Bahamas, Don Heuer, USA, pp. 59–66

Gladfelter WB (1978) General ecology of the Cassiduloid urchin Cassidulus caribbearum. Marine Biology 47:149–160

Grun TB, Nebelsick JH (2017) Shell fouling and behavior of the Caribbean predatory gastropod Cassis tuberosa. American Malacological Bulletin 35:55–58

Hughes RN, Hughes HPI (1971) A study of the gastropod Cassis tuberosa (L.) preying upon sea urchins. Journal of Experimental Marine Biology and Ecology 7:305–314

Hughes RN, Hughes HPI (1981) Morphological and behavioural aspects of feeding in the Cassidae (Tonnacea, Mesogastropoda). Malacologia 20:385–402

ICMBio – Instituto Chico Mendes de Conservação da Biodiversidade (2014) Lista de espécies Quase Ameaçadas e com Dados Insuficientes. [http://www.icmbio.gov.br/portal/faunabrasileira/lista-de-especies-dados-insuficientes] Accessed 08 June 2017

Leal JH (2002) Gastropods. In Carpenter KE (ed) The living marine resources of the Western Central Atlantic. Introduction, molluscs, crustaceans, hagfishes, sharks, batoid fishes and chimaeras. FAO species identification guide for fishery purposes, American Society of Ichthyologists and Herpetologists and the European Commission. Food and Agriculture Organization of the United Nations, Roma, Italia, vol. 1, pp. 99–127

Léo-Neto NA, Voeks RA, Dias TLP, Alves RRN (2012) Mollusks of Candomblé: symbolic and ritualistic importance. Journal of Ethnobiology and Ethnomedicine 8:10

Levitan DR, Genovese SJ (1989) Substratum-dependent predator-prey dynamics: patch reefs as refuges from gastropod predation. Journal of Experimental Marine Biology and Ecology 130:111–118

Matthews HR, Coelho ACS (1972) Superfamília Tonnacea do Brasil. IV – Família Cassidae (Mollusca, Gastropoda). Arquivos de Ciências do Mar 12:1–16

McClintock JB, Marion KR (1993) Predation by the king helmet (Cassis tuberosa) on six-holed sand dollars (Leodia sexiesperforata) at San Salvador, Bahamas. Bulletin of Marine Science 52:1013–1017

McKenzie CL, Stehlik LL (2001) Las pesquerías de moluscos en la costa caribeña de Honduras y Nicaragua. Revista de Investigación Marina 22:133–141

MMA – Ministério do Meio Ambiente (2014) Portaria MMA No 43 de 31 de janeiro de 2014. Diário Oficial da União, Brasil, 05 de fevereiro de 2014, Seção 01, p. 53

Moore RD (1956) Observations of predation on echinoderms by three species of Cassidae. Nautilus 69: 73–76

Nieto-Bernal R, Chasqui LV, Rodríguez AMR, Castro EG, Gil-Agudelo DL (2013) Composición, abundancia y distribuición de las poblaciones de gasterópodos de importancia comercial em La Guajira, Caribe colombiano. Revista Biología Tropical 61: 683–700

Pequeno APLC, Matthews-Cascon H (2001) Predation by young Cassis tuberosa Linnaeus, 1758 (Mollusca: Gastropoda) on Mellita quinquiesperforata (Clark, 1940) (Echinodermata: Echinoidea), under laboratory conditions. Arquivos de Ciências do Mar 34:83–85

Pequeno APLC, Matthews-Cascon H (2010) Predation by young Cassis tuberosa (Mollusca: Cassidae) on Lytechinus variegatus (Echinodermata: Echinoidea), under laboratory conditions. Arquivos de Ciências do Mar 43: 55–58

Rios EC (2009) Compendium of Brazilian sea shells. FURG, Rio Grande, Brazil

Schroeder RE (1962) Urchin killer. Sea Frontiers 8:156–160

Snyder N, Snyder H (1970) Alarm response of Diadema antillarum. Science 168:276–278

Tewfik A (2015) Losing the shell game: consequences of seascapes without predatory gastropods. Proceedings of the 67th Gulf and Caribbean Fisheries Institute, Christ Church, Barbados, pp. 331–338

Tewfik A, Scheuer B (2013) Ecology of the king helmet, Cassis tuberosa (L.), in South Caicos. Caribbean Naturalist 2:1–10

Work RC (1969) Systematics, ecology and distribution of the mollusk of Los Roques, Venezuela. Bulletin of Marine Science 19:614–711


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