An update on the diversity of marine sponges in the southern Gulf of Mexico coral reefs Ugalde, Diana Fernandez, Julio C. C. Gómez, Patricia Lôbo-Hajdu, Gisele Simões, Nuno Zootaxa 2021 2021-09-03 5031 1 1 112 662F7 Duchassaing & Michelotti, 1864 Duchassaing & Michelotti 1864 [151,722,151,178] Demospongiae Agelasidae Agelas Animalia Agelasida 10 11 Porifera species dispar   Synonymy and references:  Agelas dispar Duchassaing & Michelotti (1864: 76), Muricy et al.(2011: 37), Parra- Velandia et al.(2014: 306), Rützler et al.(2014: 77)and Pérez et al.(2017: 11);  Agelas sparsus:see references compiled in Muricy et al.(2011: 38)and Parra-Velandia et al.(2014: 306);  Agelas sparsusvar. clavaeformis,  Agelas disparf. clavaeformisand  Agelassp. 2, see references compiled in Parra-Velandia et al.(2014: 306).     Typelocality. The Virgin Islands.  Material examined. CNPGG-1309, CNPGG-1698, Alacranesreef ( 22.45838°N, 89.61122°W),  10–11 mdepth, coll. Nuno Simões,  10 August 2016; CNPGG-2007, Cayo Arcasreef ( 20.20361°N, - 91.97611°W),  10 mdepth, coll. Diana Ugalde,  30 August 2016.   Description.Massive habit to lobate ( Fig. 16C), size 17 × 10 cm. Surface: smooth, pierced by pores. Oscules are round with slightly elevated collars, 0.5 to 1 cmin diameter. Brown color in vivo, and brown after preservation in ethanol. Consistency is elastic and compressible.  Skeleton.A regular reticulation of spongin fibers; with meshes 250 to 360 µm wide ( Fig. 4A). Primary fibers cored (1–9 spicules per cross-section) and echinated; diameters 50–120 µm. Secondary fibers are not cored and less echinated than primaries, 30–70 µm diameter, and some fibers are free of spicules ( Fig. 4B).  Spicules.Megascleres: Acanthostyles are usually slightly curved 83–104(13.5) –130/3.9– 5.4(1.1) –7.8 µm ( Fig. 4C).   Distribution. Mexico(current records), US( Florida)(de Laubenfels 1936), Bahamas, Cuba( Alcolado 1976), other countries in the Caribbean Sea to Brazil( Parra-Velandia et al.2014).   Remarks.Our specimens correlate with those reported in the Caribbean region by Parra-Velandia et al.(2014). Some records assigned to  A. disparneed to be reassigned to their correct species, as in the case of  A. disparfrom Veracruzreported by Green et al. (1986). We examined the specimens of Green et al. (1986)deposited in the CNPGG, and they corresponded indeed to  A. sventres, as has been reassigned by Parra-Velandia et al.(2014). Therefore, our specimens are the first record of  Agelas disparin the SGoM. [199,575,403,429] Virgin Islands The 10 11 1 holotype 2016-08-10 Nuno Simoes 11 22.45838 Alacranes 1 -89.61122 10 11 1 2016-08-30 Diana Ugalde 10 20.20361 Arcas 1 -91.97611 10 11 1 Cayo