Desmanthus meandroides van Soest & Hajdu, 2000

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 : 21-22

publication ID	https://doi.org/ 10.11646/zootaxa.5031.1.1
publication LSID	lsid:zoobank.org:pub:CC3A59D1-E09E-407E-93F4-4796FD3D7C19
DOI	https://doi.org/10.5281/zenodo.5495438
persistent identifier	https://treatment.plazi.org/id/110587B3-4D1F-4804-FF53-F8BA49CE33B9
treatment provided by	Plazi
scientific name	Desmanthus meandroides van Soest & Hajdu, 2000
status

Treatment

Tables 6, 7; Figs. 14A–I View FIGURE 14 , 16N View FIGURE 16

Synonymy and references: Desmanthus meandroides van Soest & Hajdu (2000: 302) and Muricy et al. (2011: 143); Desmanthus sp. : see references compiled in Muricy et al. (2011: 143).

Type locality. Brazil .

Material examined. CNPGG-2389, Cayo Arcas reef (20.20988°N, - 91.96686°W), 4 m depth, coll. Oscar Bocardo, 26 august 2017 GoogleMaps .

Description. Thinly encrusting habit ( Fig. 16N View FIGURE 16 ); covering an area ca. 11 cm 2; up to 0.1 cm high. Surface hispid with several subectosomal channels in a very characteristic meandriform pattern. Pores or oscules not visible. Color in vivo orange and after fixation light beige. Consistency firm.

Skeleton. Styles of several sizes are disposed perpendicular to the surface ( Fig. 14A View FIGURE 14 ). Desmas in choanosomal region with rhabdomes pointing outwards although not reaching the surface ( Fig. 14C View FIGURE 14 ). Several subectosomal channels visible ( Fig. 14B View FIGURE 14 ).

Spicules. Megascleres ( Figs. 14D–I View FIGURE 14 ): Desmas I, cladomes (Fig: 14F); 70– 141 (37.9)–190/4– 6.3 (1.2)–7.2 µm. Desmas II ( Figs. 14G–I View FIGURE 14 ), cladomes; 110– 153.7 (27.2)–200/7– 10.5 (2)–15 µm and rhabdomes; 70– 108.3 (31)– 180/10– 13.5 (4.2)–25 µm. Styles, slightly curved and smooth ( Fig. 14D View FIGURE 14 ); 150– 383.7 (221.7)–760/3.5– 8.6 (3.6)–14 µm.

Distribution. Mexico (current record), Brazil ( van Soest & Hajdu 2000).

Remarks. Up to now, Desmanthus meandroides had been reported only in Brazil ( van Soest & Hajdu 2000; Moraes et al. 2006). Thus, our study is the first record of the species for the GoM. Our material has external morphological features (shape, color, and surface pattern) and spicules quite similar to the original description by van Soest & Hajdu (2000). However, our material has, in general, smaller spicule sizes than the original; viz., desmas I cladomes 155–291/5–6 µm, desmas II with cladomes 155–267/8–17 µm, rhabdomes 49–204/10–30 µm, and styles 126–834/8–10 µm.

Order Clionaida Morrow & Cárdenas, 2015