New species of sabellariids (Annelida: Sabellariidae) from the Caribbean Sea and the Gulf of Mexico Author Chávez-López, Yessica 54967922-0DE4-452F-A980-5E260F38F8B8 Departamento de Sistemática y Ecología Acuática, El Colegio de la Frontera Sur, Chetumal, Quintana Roo, México. yess.chl05@gmail.com text European Journal of Taxonomy 2022 2022-07-21 831 109 148 http://dx.doi.org/10.5852/ejt.2022.831.1873 journal article 102842 10.5852/ejt.2022.831.1873 b3298020-95a2-487e-b219-75b6eb1fe65e 2118-9773 6885276 5DC33033-8588-463F-9AAE-2BC49560BE1D Genus Tetreres Caullery, 1913 Type species Hermella varians Treadwell, 1901 ; by original designation. Diagnosis Operculum with lobes partially fused. Two rows of opercular paleae. Outer paleae arranged in semicircles, blades straight, flat. Few (4–5) cylindrical inner paleae in single short row on ventral side of operculum, with blades straight, flat. One pair of large nuchal hooks with tips pointing inwards towards the prostomium. Tentacular filaments arranged in single rows (simple). Median organ small, conical at dorsal junction of opercular lobes. Palps grooved, longer than operculum. Four parathoracic segments ( Kirtley 1994 ; Capa et al. 2012 ). Key to species of Tetreres Caullery, 1913 from the Caribbean Sea 1. Outer paleae lanceolate, six times as long as wide, with long slender tip ( Fig. 18A–B ) ................... ........................................... T. israeli sp. nov. Northeast United States Virgin Islands , 4180 m depth – Outer paleae oblong, three times as long as wide ( Fig. 21A–B ) ...................................................... 2 2. With about ten thin tentacular filaments on each opercular lobe ........................................................ ...................... T. varians (Treadwell, 1901) . Mayagüez , Harbor, Puerto Rico , 177.4–219. 5 m depth – With five broad tentacular filaments on each opercular lobe ( Fig. 20D ) ............................................ ................................................ T. oscari sp. nov. Southeastern Key West, Florida , 288–378 m depth