Syllis alternata Moore, 1908

Rodríguez, Yolanda Lucas, Martín, Guillermo San & Fiege, Dieter, 2020, New species and records of the genus Syllis Savigny in Lamarck, 1818 (Annelida: Syllidae) from Socotra Archipelago (Indian Ocean), Zootaxa 4742 (1), pp. 73-88 : 75

Syllis alternata Moore, 1908

Syllis alternata Moore, 1908: 323–325 , text-fig. a–f, 324; Moore 1909: 321; San Martín & Viéitez 1984: 153, figs 1, 2; Çinar 1999: 246, fig. 4.102; San Martín 2003: 354, figs 192, 193.

Typosyllis alternata .— Hartman 1948: 21; Imajima 1966: 273, text-fig. 58; Licher 1999: 253, fig. 106.

Syllis (Typosyllis) alternata .— Gardiner 1976: 141, figs 13b, c; Uebelacker 1984: 30–141, figs. 30–136.

Material examined. Soc/ST 706 Kal Farun rock outcrop, 12º26.049’N 52º08.07’E, 9.5–12.5 m, coll. M. Apel, 03.04.2000, 1 specimen ( SMF 26697).

Habitat. In coralligenous concretions, algae, Mäerl, Posidonia rhizomes, detritic bottoms, vermetid reefs, calcareous algae ( San Martín 2003).

Distribution. Northeastern Pacific Ocean, from Alaska to California. Chukchi Sea. Japan. Caribbean Sea. Gulf of México. Northeastern Atlantic. Mediterranean Sea. Indian Ocean. Apparently cosmopolitan, mainly in the northern hemisphere, but some of these records are probably the result of misidentifications ( Read & Fauchald 2019), and S. alternata may be a complex of species. New record for Socotra.

Type locality. Vincinity of Naha Bay , Behm Canal, SO-Alaska .