Fauveliopsis brevipodus Hartman 1971

• Main Authors: Salazar-Vallejo, Sergio I., Zhadan, Anna E., Rizzo, Alexandra E.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2019
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Terebellida; Fauveliopsidae; Fauveliopsis; Fauveliopsis brevipodus; Antarctic; Antarctic Ocean; Argentina; Cape Horn; Drake Passage; Antarc*
• Online Access: https://zenodo.org/record/5927960; https://doi.org/10.5281/zenodo.5927960

Fauveliopsis brevipodus Hartman, 1971 Figure 4 Fauveliopsis brevis Hartman, 1967:123–124, Pl. 37, Fig. A, B; Levenstein 1970: 228. Fauveliopsis brevipodus Hartman, 1971: 1422 (replacement name for F. brevis Hartman, 1967, junior homonym of F. brevis (Hartman, 1965), newly combined by Hartman & Fauchald 1971: 115). TL: S off Isla de los Estados, Drake Passage, 380– 490 m. D: Southern Chile to Drake Passage, 384–3537 m. Type material: Southwestern Atlantic Ocean, Argentina. Holotype (USNM 55546), and four paratypes (USNM 55547), in rhabdamminid-like foraminiferans, S off Isla de los Estados, Drake Passage, Cape Horn, R / V Eltanin, Sta. 740 (56°06’ S, 66°19’ W to 56°07’ S, 66°30’ W), 384–494 m, 18 Sep. 1963 (paratypes 2.7–3.9 mm long, 0.4–0.6 mm wide, 27–29 chaetigers; GP not seen). Additional material. Antarctic Ocean. One specimen (LACM 7501), pharynx everted, off S Falkland or Malvinas Islands, R/V Eltanin, Sta. 350 (55°03’ S, 58°57’ W to 55°00’ S, 58°51’ W), 2452 m, 4 Dec. 1962 (4.1 mm long, 0.4 mm wide, 27 chaetigers; GP or oocytes not seen). Diagnosis. Fauveliopsis with 28 chaetigers (Fig. 4A, D, E). Anterior, median and posterior chaetigers with an acicular and a capillary per rami (Fig. 4B, C). Interramal papillae globular, sessile, slightly longer than wide. Pygidium with a pair of large lateral papillae (Fig. 4C). GP not seen. Remarks. Fauveliopsis brevipodus resembles Fauveliopsis sp. A of Wolf (1984) because both have the body surface papillated, and genital papillae are not visible. They differ especially regarding pygidial features; in F. brevipodus the pygidium is almost smooth, with two papillae, whereas in F. sp. A the pygidium has many short papillae. The original illustration (Hartman 1967: Plate 37, Fig. A) shows that the body is tapered towards the “posterior” region and the papillae are illustrated as being about as long as the “anterior” aciculars; however, the body polarity was reverted, and no trace of the gut was illustrated. Although it was not indicated in the original description, ...