Sternaspis monroi Salazar-Vallejo, 2014, n. sp.

Sternaspis monroi n. sp. Fig. 3 Sternaspis scutata : Monro, 1930: 178 –179; Augener, 1932: 56; Hartman, 1953: 10; 1966: 55, Pl. 18, Fig. 1; 1967: 141 ( partim , non Ranzani, 1817). Type material. Scotia Sea. South Orkneys. Holotype (BMNH 1930.10.8.2372–2400R), and three paratypes (BMNH 1930.10.8.237...

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Bibliographic Details
Main Author: Salazar-Vallejo, Sergio I.
Format: Other/Unknown Material
Language:unknown
Published: Zenodo 2014
Subjects:
Online Access:https://doi.org/10.5281/zenodo.6137638
http://treatment.plazi.org/id/03887C7E29417E52AEFBFAE9AD6F8A35
Description
Summary:Sternaspis monroi n. sp. Fig. 3 Sternaspis scutata : Monro, 1930: 178 –179; Augener, 1932: 56; Hartman, 1953: 10; 1966: 55, Pl. 18, Fig. 1; 1967: 141 ( partim , non Ranzani, 1817). Type material. Scotia Sea. South Orkneys. Holotype (BMNH 1930.10.8.2372–2400R), and three paratypes (BMNH 1930.10.8.2372–2400 Rp), R.V. Discovery, Sta. 167, 244– 344 m, 20 Feb. 1927 (paratypes 11–15 mm long, 5–6 mm wide, abdomen 7–8 mm long; left ventro-caudal shield plate 2.0– 2.5 mm long, 2.2–2.6 mm wide). Additional material . Scotia Sea . South Orkneys. Three specimens (BMNH 1930.10.8.2482–2488R), R.V. Discovery, Sta. 162, 320 m, 17 Feb. 1927 (14 mm long, 5.0– 5.5 mm wide, abdomen 8 mm long; left shield plate 2.1– 2.2 mm long, 2.3–2.4 mm wide). South Georgia . Two specimens (BMNH 1930.10.8.2301-2303R), body wall well-preserved, pharynx not exposed, R.V. Discovery, Sta. 45, 238– 270 m, 6 Apr. 1927 (shields without concentric lines, banded, one with a deep median notch belongs to S. sendalli n. sp. , see below, 7 mm long, 3 mm wide, abdomen 4 mm long). Description . Holotype (BMNH 1930.10.8.2372–2400R) complete (Fig. 3 A). Body pale, introvert fully exposed, with similar pigmentation as abdomen, constriction or waist segments relaxed; ventro-caudal shield brick red with paler submarginal band (Fig. 3 A, B). Introvert mostly smooth, abdomen finely papillose. Body 14 mm long, 4.8 mm wide, abdomen 7 mm long; left ventro-caudal shield plate 2.1 mm long, 2.5 mm wide. Prostomium hemispherical, projected, whitish. Eyespots not seen. Peristomium round, slightly damaged, with few papillae, barely extended laterally and ventrally to margin of first chaetiger. Introvert chaetigers with 12–14 brassy, falcate hooks, each with subdistal darker areas, tips mucronate (Fig. 3 A, C, E). Genital papillae small, short, digitate, with same pigmentation as introvert, visible in intersegmental area between segments 7 and 8. Anterior abdomen with 7 segments, papillae evenly distributed, not arranged in series or groups. Capillaries not seen. Ventro-caudal ...