Petrosia (Petrosia) weinbergi van Soest, 1980

Ugalde, Diana, Fernandez, Julio C. C., Gómez, Patricia, Lôbo-Hajdu, Gisele & Simões, Nuno, 2021, An update on the diversity of marine sponges in the southern Gulf of Mexico coral reefs, Zootaxa 5031 (1), pp. 1-112 : 42-44

Petrosia (Petrosia) weinbergi van Soest, 1980

Tables 6, 7; Figs. 35A–D , 45D

Synonymy and references: Petrosia weinbergi van Soest (1980: 75) , Hajdu et al. (2011: 196) and Muricy et al. (2011: 107); Petrosia sp. , see references compiled in Muricy et al. (2011: 107); Petrosia (Petrosia) weinbergi, Muricy et al. (2011: 107) , Rützler (2014: 90) and van Soest (2017: 37).

Type locality. Curaçao .

Material examined. CNPGG-2203, Cayo Arcas reef (20.19491°N, - 91.95741°W), 5.1 m depth, coll. Diana Ugalde, 20 August 2018 ; CNPGG-2249, Triangulo Oeste reef (20.85178°N, - 92.30963°W), 23 m depth, coll. Oscar Bocardo, 09 September 2017 ; CNPGG-2392, Hornos reef (19.19083°N, - 96.11777°W), 2.7 m depth, coll. Diana Ugalde, 27 August 2018 ; CNPGG-2434, Cabezo reef (19.05086°N, - 95.82388°W), 8.3 m depth, coll. Diana Ugalde, 30 August 2018 ; CNPGG-2448, Isla Verde reef (19.20588°N, - 96.07305°W), 7.2 m depth, coll. Diana Ugalde, 31 August 2018 .

Distribution. Mexico ( Maas-Vargas 2004; Gómez 2011; current records), Cuba, other countries in the Caribbean Sea, Guyana, to Brazil ( van Soest 2017).

Remarks. Our study presents the second record of P. (P.) weinbergi for the GoM, following Gómez (2011). This species is not present in recent studies on sponges from the region. Our specimens match in all their characteristics the description by van Soest (1980).

Genus Xestospongia de Laubenfels, 1932

Figures

FIGURE 35. Petrosia (Petrosia) weinbergi van Soest, 1980 (CNPGG-2249), skeleton and spicules:A. tangential section of the skeleton of the ectosomal region; B. detail of the ectosomal region; C. transversal section of the skeleton; D. oxeas, 1― oxeas I, 2―oxeas II, 3―oxeas III and 4―oxeas IV. Scale bars: A 500 µm; B–C = 100 µm; D = 50 µm.

FIGURE 45. In situ photographs of species analyzed in the present study: A. Neopetrosia proxima Duchassaing & Michelotti, 1864 (CNPGG-2264); B. Neopetrosia proxima Duchassaing & Michelotti, 1864 (CNPGG-2376); C. Neopetrosia subtriangularis (Duchassaing, 1850) (CNPGG-2435); D. Petrosia (Petrosia) weinbergi van Soest, 1980 (CNPGG-2434). E. Xestospongia muta (Schmidt, 1870) (CNPGG-2230); F. Siphonodictyon xamaycaense Pulitzer-Finali, 1986 (CNPGG-2441), arrows pointing to fistules; G. Siphonodictyon xamaycaense Pulitzer-Finali, 1986 (CNPGG-2432); H. Clathria (Clathria) foliacea Topsent, 1889 (CNPGG-2172), its stem is covered by algae; I. Clathria (Clathria) gomezae van Soest, 2017 (CNPGG-2231); J. Clathria (Thalysias) venosa (Alcolado, 1984) (CNPGG-2410); K. Clathria (Thalysias) virgultosa (Esper, 1806) (CNPGG-2357). Scale bars, A–K = 1 cm.