Aracia sinaloae sp. n., a new brooding, simultaneous hermaphroditic fan worm from southern Gulf of California (Polychaeta: Sabellidae) Author Tovar-Hernández, María Ana text Zootaxa 2014 3784 4 389 400 journal article 46100 10.11646/zootaxa.3784.4.3 96abf920-971e-43e2-a7e1-d38b75133830 1175-5326 229610 63F50BE8-29D0-4781-9668-9F89A9E36F7E Genus Aracia Nogueira, Fitzhugh & Rossi, 2010 Diagnosis. Short-bodied sabellids with 4–6 pairs of radioles in semicircular radiolar lobes. Palmate membrane and radiolar flanges both absent; radiolar eyes absent. Dorsal lips rounded or triangular, radiolar and pinnular appendages both absent; ventral lips low, distally rounded, fused; ventral radiolar appendages, parallel lamella and ventral sacs all absent. Peristomial eyespots present. Glandular ridge on chaetiger 2 absent. Interramal eyespots absent. Superior thoracic notochaetae elongate, narrowly hooded, inferior thoracic notochaetae paleate; thoracic uncini avicular, with short handle, developed breast and several rows of progressively shorter teeth above main fang; neuropodial companion chaetae with denticulate head and long, gently tapering roughly symmetrical membrane. Abdominal uncini similar to thoracic ones; abdominal neurochaetae as elongate, broadly hooded chaetae. Pygidial eyespots present in juveniles (Nogueira et al. 2004).