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Interstitial Annelida

On the Systematics and Biodiversity of the Opheliidae and Scalibregmatidae

Departamento de Bioloxía, Facultade de Ciencias, Universidade da Coruña, 15008 A Coruña, Spain
Molecular Ecology Group (MEG), Water Research Institute (IRSA), National Research Council of Italy (CNR), Largo Tonolli 5, 28922 Pallanza, Italy
Departamento de Biología (Zoología) & Centro de Investigación en Biodiversidad y Cambio Global (CIBC-UAM), Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
Author to whom correspondence should be addressed.
Academic Editor: Luc Legal
Diversity 2021, 13(2), 87;
Received: 30 December 2020 / Revised: 10 February 2021 / Accepted: 12 February 2021 / Published: 18 February 2021
(This article belongs to the Special Issue Systematics and Diversity of Annelids)
In this paper we review the systematics, diversity, and ecology of two related annelid families: Opheliidae Malmgren, 1867 and Scalibregmatidae Malmgren, 1867. Opheliids are deposit-feeders and that are mainly found as burrowers in sandy sediments. Morphologically, opheliids are characterized by the smooth cuticle, as well as the presence of a conspicuous ventral groove, reduced parapodia, and a tubular-shaped structure often projecting from the posterior end. Scalibregmatids are also deposit-feeders, but compared to opheliids, they have a characteristic arenicoliform body, a T-shaped anterior end and a glandular, reticulated epidermis. For each family, we summarize the available information about the evolutionary relationships, taxonomic history, geographical distribution, ecological preferences and diversity of life strategies along with the techniques most commonly used for their study. By highlighting the main gaps in knowledge on each of these topics, this review ultimately aims at stimulating further research into members of these two families in the future. View Full-Text
Keywords: Opheliidae; Scalibregmatidae; diversity; taxonomy; anatomy; biology Opheliidae; Scalibregmatidae; diversity; taxonomy; anatomy; biology
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MDPI and ACS Style

Parapar, J.; Martínez, A.; Moreira, J. On the Systematics and Biodiversity of the Opheliidae and Scalibregmatidae. Diversity 2021, 13, 87.

AMA Style

Parapar J, Martínez A, Moreira J. On the Systematics and Biodiversity of the Opheliidae and Scalibregmatidae. Diversity. 2021; 13(2):87.

Chicago/Turabian Style

Parapar, Julio, Alejandro Martínez, and Juan Moreira. 2021. "On the Systematics and Biodiversity of the Opheliidae and Scalibregmatidae" Diversity 13, no. 2: 87.

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