Table 1 (continued on next page). Taxonomic and biogeographic data on the species of Brevicirrosyllis San Martín, López & Aguado, 2009. Type localities in bold. Data of B. ancori (San Martín & Hutchings, 2006), B. mariae (San Martín & Hutchings, 2006), and B. mayteae (San Martín & Hutchings, 2006) fromSan Martín & Hutchings (2006), B. gorringensis (Hartmann-Schröder, 1977) from Hartmann-Schröder (1977), and B. weismanni (Langerhans, 1879) from San Martín (2003). Original descriptionBody length × width (mm) /nº of chaetigersPalpsLateral antennaMedian antennaDorsal cirriParapodialNumber of falcigers per parapodium (anterior/ posterior)Falciger blades morphologyFalciger blades length – anterior/ posterior blades (µm)Dorsal simple chaetaVentral simple chaetaPharynx / proventricle segments (muscle cell rows)HabitatDistributionBrevicirrosyllis ancoriSan Martin & Hutchings, 20068 × 0.2/ 50Triangular, longer than prostomiumSlightly anteriorly to eyes, as long as palpsPosterior to eyes, longer than palps + prostomium, smoothNo inclusions; smooth, short, papilliform; absent on chaetiger 2Slightly shorter than dorsal cirri; parapodial glands from proventricle, granular material4/ 3Bidentate, teeth similar in size33–8 /20–10From mid to posterior parapodia, truncatedOnly on posterior parapodia; bidentate, subdistal tooth larger than distal one, with translucent hood5/ 2.5 (30)From 9 to 244 m deep. Associated with encrusting algae and spongesPacific Ocean: Australia (Queensland, Western Australia, northern New South Wales)Brevicirrosyllis gorringensisHartmann-Schröder, 19771.5 × 0.22 / 25Broad, subtriangular, as long as prostomiumOn anterior margin of prostomium, slightly longer than palpsOn posterior margin of prostomium, slightly longer than palps + prostomium, rugoseNo inclusions; smooth, as long as or slightly shorter than median antenna; present on chaetiger 2Shorter than dorsal cirri; no parapodial glands8/ 4Bidentate, distal tooth largerSmall gradation in length (from drawings)From midbody parapodia, long, straight, acuteOnly on posterior parapodia; bidentate, subdistal tooth larger than distal one4.5/ 4 (30)72 m deep. From dredgesOnly known from type locality. Atlantic Ocean: Gorringe BankBrevicirrosyllis paulolanai sp. nov.This paper7 × 0.17 /47 (without posterior most segments)Triangular, about same length of prostomiumSlightly anteriorly to eyes, about same length of palpsPosterior to eyes; three times longer than palps + prostomium, basally smooth, distal half rugoseNo inclusions; ~ ½–¾ length of median antenna, smooth; absent on chaetiger 2Shorter than dorsal cirri; no parapodial glands4–5/ 3Bidentate, distal tooth slightly larger than subdistal one throughout27–10 /15–7From midbody, truncatedNot observed2.5–3 / 2.5 (32–30)Subtidal zones, 18–21 m deepOnly known from type locality. Atlantic Ocean: Brazil (Trindade Island)Brevicirrosyllis mariaeSan Martin & Hutchings (2006)7 × 0.3/ 54Triangular, longer than prostomiumSlightly anteriorly to eyes, as long as palpsBetween posterior eyes, about same length of palps + prostomiumFibrillar inclusions; from chaetiger 1 pseudoarticulated distally, as long as median antenna; absent on chaetiger 2Slightly longer than dorsal cirri; parapodial glands from midbody5 / 3–4Bidentate, distal tooth larger anteriorly, teeth about same size towards posterior body27–12 throughoutFrom midbody parapodia, truncatedFrom mid to posterior parapodia; bidentate, subdistal tooth larger than distal one, with translucent hood4 /3–4 (30–36)Subtidal to 244 m deep.Associated with incrusting communities and sandPacific Ocean: Australia (Queensland, New South Wales)Brevicirrosyllis mayteaeSan Martin & Hutchings (2006)5.4 × 0.2/ 44Broad, stout, shorter than prostomiumSlightly anteriorly to eyes, as long as palps + prostomiumNear posterior margin, about, about same length of palps + prostomiumNo inclusions; from chaetiger 1 smooth, as long as median antenna; absent on chaetiger 2Slightly shorter than dorsal cirri; parapodial glands from midbody, granular material5 / 4Bidentate, distal teeth similar in size16–8 / 10–7From mid to posterior parapodia, long, straight, acute, with minute subdistal spines on marginOnly on posterior parapodia, bidentate, teeth at 90°, subdistal tooth larger than distal one with translucent hood5/ 5 (20)Subtidal to 30 m deep. Associated with Lithothamnion sp. and Halimeda sp.Pacific Ocean: Australia (Queensland)Brevicirrosyllis weismanniHartmann-Schröder, 197718 × 0.5 /96Broad, subtriangular, slightly longer than prostomiumSlightly anteriorly to eyes, as long as prostomium + palpsBetween posterior eyes; almost three times longer than lateral ones, pseudoarticulated anteriorlyFibrillar inclusions; smooth, slightly shorter or about same length as median antenna; present on chaetiger 2Slightly shorter than dorsal cirri; no parapodial glands+4/ 4Bidentate, distal tooth slightly larger25–20 /–From anterior parapodia, truncatedForm proventricle or only on posterior parapodia, bidentate, subdistal tooth larger than distal one, with translucent hood5/ 3 (30)From intertidal to 200 m deep. Associated with vermetids, coralline substrates and in rocky and Peyssonelia sp. bottomsAtlantic Ocean: Mediterranean Sea, Brittany, Madeira Island, Gulf of Mexico, and Cuba. Pacific Ocean: Hawaii Islands

Published as part of Rodolfo Leandro Nascimento, Marcelo Veronesi Fukuda & Paulo Cesar de Paiva, 2024, Two new incertae sedis syllids (Annelida: Syllidae) from Brazilian oceanic islands, pp. 49-50 in European Journal of Taxonomy 925 (1) on page 49, DOI: 10.5852/ejt.2024.925.2449, http://zenodo.org/record/10803984