Updated checklist and identification key of benthic tanaidaceans (Crustacea Peracarida) of the sublittoral zone of the northern Yucatan Peninsula, Mexico Author Abarca-Ávila, Mónica Mariel Author Herrera-Dorantes, María Teresa Author Winfield, Ignacio Author Ardisson, Pedro-Luis text Zootaxa 2019 2019-12-13 4711 1 51 76 journal article 24636 10.11646/zootaxa.4711.1.2 a23fcefa-299b-4695-be53-d3d82b0c7677 1175-5326 3573454 B3FFF924-44D6-403A-87B4-62EA2E2907D2 ♣ Mesokalliapseudes bahamensis Sieg, 1982 Material examined. TA : 150 individuals. CNCR 34804 . Tr-Loc : Madagascar , Yucatan , Mexico , 21°26’30.12’’N 90°17’25.9’’W , six individuals, 29 May 2012 , coll . GR , IW , MA , UP , collected at 15 m depth ; Tr-Loc : Sisal , Yucatan , Mexico , 21°20’54.4’’N 90°08’52.5’’W , three individuals, 30 May 2012 , coll . GR , IW , MA , UP , collected at 9 m depth ; Tr-Loc : Tanchit , Yucatan , Mexico , 21°21’53.3’’N 90°04’05.4’’W , 25 individuals, 31 May 2012 , coll . GR , IW , MA , UP , collected at 8 m depth ; Tr-Loc : Bajo Diez , Yucatan , Mexico , 21°20’50.8’’N 90°08’53.0’’W , 23 individuals, 04 June 2012 , coll . GR , IW , MA , UP , collected at 11 m depth ; Tr-Loc : Bocacha , Yucatan , Mexico , 21°19’17.3’’N 90°20’02.6’’W , 92 individuals, 04 June 2012 , coll . GR , IW , MA , UP , collected at 8 m depth ; Tr-Loc : Bocana , Yucatan , Mexico , 21°13’56.5’’N 89°53’20.1’’W , one individual, 06 June 2012 , coll . GR , IW , MA , UP , collected at 1 m depth . Local distribution. Consult Cházaro-Olvera et al. (2018) . Geographical distribution. Atlantic Ocean: coastal waters from South Carolina to southeast Florida, Isla El Salvador , Bahamas ; GoM: Veracruz Reef System National Park, Bajos de Sisal Reef System; Caribbean Sea: Carrie Bow Cay, Belize , Puerto Morelos Reef National Park, Quintana Roo. Recognition characters. Rounded rostrum; without eyes; mandibular palp, maxilliped and chela with carpus and propodus with a row of long plumose setae on inner margin; mandibular palp with one simple terminal setae; chela with fixed finger less than a third of the length of the dactylus. Remarks. It inhabits the first 100 m perpendicular to the shoreline, associated with seagrasses such as Thalassia Banks ex König , coral reefs, algae such as Caulerpa racemosa (Forsskål) J, Agardh, D. delicatula , D. dichotoma , Hypnea spinella (C.Agardh) Kützing , cnidarians such as Pterogorgia guadalupensis Duchassaing & Michelin , sponges such as C. foliacea , in coral rubble, sand, mud and silt, at depths 3 to 52 m . It is a filter-feeder species, consuming fine particles. References. Sieg (1982) ; Heard et al . (2004) ; Guţu (2006) ; Heard & Anderson (2009) ; Drumm & Heard (2010) ; Drumm & Heard (2011) ; Winfield et al. (2013) ; Monroy-Velázquez et al. (2017) ; Winfield et al. (2017) ; Cházaro- Olvera et al . (2018); Stępień et al . (2018) .