Naineris setosa Verrill 1900
Creators: name: Dean, Harlan K.
name: Blake, James A.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Orbiniidae
Naineris
Naineris setosa

description: Naineris setosa (Verrill, 1900)
Figure 5 (C–G)
Aricia setosa Verrill, 1900:651 –653.
Anthostoma latacapitata Treadwell, 1901:203 –205, Figs. 61–65.
Naineris latacapitata: Treadwell, 1939:254, Fig. 81.
Naineris setosa: Treadwell, 1936:55.— Hartman, 1942:61, Figs; 116–118; 1951:67–70, pl. 17, Figs. 1–6; 1957:305, pl. 41, Figs. 1–6.— Rioja, 1960: 303.— Solis-Weiss & Fauchald, 1989:774 –778, Fig. 2.— Blake & Giangrande, 2011:20 –26, Figs. 1–2.— Khedhri et al., 2014:85 –86.
Material examined. Punta Morales, Playa Blanca, 10°3′47.2″ N, 84°57′9.2″ W, lower intertidal, muddy sand, 1988 (1), col: J. A. Vargas. Off Costa Rica, Cocos Island, Silverado, 11 m, 23 May 2008 (1 MZUCR); Bahia Chatham Braga, 65 m, 9 April 2008 (1 MZUCR); Wafer Buceo, 10 m, 10 April 2008 (1 MZUCR).
Description. Single complete specimen 196 mm long for approximately 670 setigers, 4.7 mm maximum thoracic width, posterior region narrow with many closely spaced setigers. Prostomium short, rounded, eyespots lacking, nuchal organs not visible (Fig. 5 C). Peristomium a simple ring, subequal in length to setiger 1. Thoracic region 30 setigers long, flattened dorso-ventrally. Long cirriform branchiae present from setiger 6 (Fig. 5 C–D).
Thoracic notopodia with low-lying presetal ridge and long, triangular postsetal lobe; presetal neuropodial lobe a low ridge, postsetal lobe expanded, approaching setal length, with short, triangular point dorsally (Fig. 5 D). Abdominal notopodial presetal lobe a low ridge, postsetal lobe long, cirriform, extending beyond branchial length; pre- and postsetal lobes of abdominal neuropodia short, triangular ridges, postsetal lobe with a dorsal point (Fig. 5 E); in far posterior setigers postsetal lobes on notopodia long, narrow, shorter than branchiae, neuropodial postsetal lobe long, narrow, approximately one-third length of notopodial postsetal lobe (Fig. 5 F). Setae crenulated capillaries throughout; accompanied by 1‒3 furcate setae in abdominal notopodia (Fig. 5 G).
Remarks. A more detailed description of Naineris setosa together with a review of its taxonomic history, distribution, biology and ecology was presented by Blake & Giangrande (2011) who reported on an invasive occurrence of the species at a fish aquaculture facility in Brindisi, Italy.
Distribution. A widely distributed species first described from Bermuda and reported from numerous sites in the tropical western Atlantic, Caribbean and Gulf of Mexico (Blake & Giangrande 2011, Dean 2012). Hartman (1957) first reported this species from Pacific Mexico and Blake & Giangrande (2011) extended its range from Mexico to Costa Rica in the Eastern Pacific. In Costa Rica it was found in the muddy intertidal of Playa Blanca, Punta Morales.
description: Published as part of Dean, Harlan K. & Blake, James A., 2015, The Orbiniidae (Annelida: Polychaeta) of Pacific Costa Rica, pp. 183-198 in Zootaxa 3956 (2) on page 194, DOI: 10.11646/zootaxa.3956.2.2, http://zenodo.org/record/237218