Tovar-Hernández, María Ana. 2014. Aracia sinaloae sp. n., a new brooding, simultaneous hermaphroditic fan worm from southern Gulf of California (Polychaeta: Sabellidae). Zootaxa 3784(4): 389–400

176254

Tovar-Hernández, M.; Ana

2014

3784(4): 389-400

Publication

World Polychaeta Database (WPolyDb)

Currently, only two species are known in the sabellid genus Aracia: A. riwo (Rouse, 1996) and A. heterobranchiata (Nogueira, López & Rossi, 2004). The first was described from the surface of a Teredo-riddled log lying in 1 m of water among mangrove roots, in Papua (New Guinea), whilst the second was found on an organically enriched beach at São Sebastião (Brazil). In this contribution, a third species of Aracia is described from settling panels and red mangrove roots in an estuarine system located in southern Gulf of California (Mexico). The new species is a simultaneous hermaphrodite and brooder, unique in the presence of a rectangular ventral shield on the collar, shorter than those in posterior thoracic segments; and a high number of rows of teeth in thoracic and abdominal uncini, covering from one-half to three-quarters of the main fang length. Information about color patterns in live specimens, glandular patterns, and reproduction is provided.

California quadrant

Polychaeta

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