On the taxonomy of the genus Cyclaspis Sars, 1865 (Crustacea: Cumacea: Bodotriidae) from the Brazilian coast, with three
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ORIGINAL PAPER
On the taxonomy of the genus Cyclaspis Sars, 1865 (Crustacea: Cumacea: Bodotriidae) from the Brazilian coast, with three new records and descriptions of three new species Ayrton do Ramo Brito 1,2
&
Cristiana Silveira Serejo 1,2
Received: 28 September 2019 / Revised: 9 April 2020 / Accepted: 15 April 2020 # Senckenberg Gesellschaft für Naturforschung 2020
Abstract Cumaceans are an important component of the macrobenthic fauna and are preyed upon by several species of fishes. In the family Bodotriidae, Cyclaspis Sars, 1865 is the most speciose genus with more than 140 described species. Based on material from the Campos Basin and Espírito Santo Basin, southwestern Atlantic, we describe three new species of Cyclaspis: Cyclaspis goytacazes sp. nov., Cyclaspis lilianae sp. nov. and Cyclaspis tesauna sp. nov. We also report C. antipai Petrescu, 1995, C. roccatagliatai Petrescu, 1995 and C. unicornis Calman, 1907 as new records from the Brazilian coast. The first two species were known previously from Uruguay, and C. unicornis from the Caribbean Sea. Of the six species, only C. lilianae sp. nov. was found on the continental slope (415–1320 m) and the other five species were restricted to the continental shelf (18–139 m). A pictorial identification key for the 17 species of Cyclaspis known to occur in Brazil is provided. Keywords Campos Basin . Espírito Santo Basin . Identification key . Southwestern Atlantic . Continental shelf and slope
Introduction Cumaceans are common members of the macrobenthic marine fauna and are preyed upon by several species of fishes, such as rays (Sympterygia Müller & Henle, 1837) and codfish (Gadus morrhua L.) (Anger and Valentin 1976; Bacescu and Queiroz 1985). Members of the cumacean genus Cyclaspis Sars, 1865 are primarily benthic, although adult females, males and immatures enter in the water column at night as nocturnal plankton (Bacescu and Petrescu 1999; Heard and Roccatagliata 2009). The members of this genus occur in all This article is registered in ZooBank under http://zoobank.org/ 97E7D70B-6C44-45E0-A0EE-217A9F20D661 Communicated by S. Kaiser * Ayrton do Ramo Brito [email protected] 1
Departamento de Invertebrados, Laboratório de Carcinologia, Museu Nacional/ Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 20940-040, Brazil
2
Programa de Pós-Graduação em Ciências Biológicas (Zoologia) – PPGZOO, Museu Nacional/ Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
oceans and depths but are most commonly found at depths less than 50 m (Haye 2007). Sars (1865) used characters such as the circular lateral view of the carapace and the lack of eyes in his original descriptions, but with the new species added over the years, the diagnosis of the genus Cyclaspis became more comprehensive. The many species and few diagnostic characters have made the genus a ‘grab bag’ for the family Bodotriidae (Haye 2007). Cyclaspis is the most speciose genus of the family, with more than 140 described species (Anderson 2010; Petrescu 2014; Petrescu et al
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