Abstract
ABSTRACT A new species of orbiniid, Scoloplos maranhensis sp. nov., is described from a tropical mangrove (Quebra Pote, state of Maranhao, Brazil, 02°41.344’S; 44°12.604’W) along with a comparative table with all Scoloplos species. The main distinguishing characters of S. maranhensis sp. nov. are thorax with 12 chaetigers, neuropodia from first chaetiger, notopodia and neuropodia without papillae, conical branchiae from 12th chaetiger to the end of the body, being larger and more robust in the anterior segments. Thoracic notopodia with seven crenulated capillary chaetae and abdominal notopodia with furcated and capillary chaetae. Thoracic neuropodia rounded with two crenulated capillary chaetae and six slender-smooth hooks, abdominal neuropodia with a post-chaetal lobe and only capillary chaetae. Papillae absent from posterior parapodia; one pair of cirriform anal cirri.
Highlights
A new species of orbiniid, Scoloplos maranhensis sp. nov., is described from a tropical mangrove (Quebra Pote, state of Maranhão, Brazil, 02°41.344’S; 44°12.604’W) along with a comparative table with all Scoloplos species
Scoloplos has four or less foot papillae plus stomach papillae, thoracic neuropodial hooks accompanied with capillary chaetae, and branchiae starting from chaetiger 8 or later, while Leodamas have numerous hooks in thoracic neuropodia accompanied with few or no capillary chaetae, single thick projecting aciculae in abdominal neuropodia, and branchiae starting before chaetiger 7 (Bleidorn et al, 2009; Zhadan et al, 2015)
We describe an additional species, Scoloplos maranhensis sp. nov. from tropical Brazilian mangroves and provide a comparative table of all species of the genus
Summary
A new species of orbiniid, Scoloplos maranhensis sp. nov., is described from a tropical mangrove (Quebra Pote, state of Maranhão, Brazil, 02°41.344’S; 44°12.604’W) along with a comparative table with all Scoloplos species. We describe an additional species, Scoloplos maranhensis sp. All material studied was sampled at Quebra Pote mangrove, located in the city of São Luís, Maranhão, Brazil (02°41.344’S; 44°12.604’W; Fig. 1). Thoracic notopodia with crenulated capillaries (Figs 5, 6, 9, 10) and abdominal notopodia with crenulated capillaries and furcated chaetae with unequal ends and internally hairy (Figs 7, 8, 10).
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