Neopetrosia subtriangularis ( Duchassaing, 1850 )

Rocha, Lívia, Moraes, Fernando, Salani, Sula & Hajdu, Eduardo, 2021, Taxonomy of Petrosiidae Van Soest, 1980 (Haplosclerida, Porifera) from Brazil, Zootaxa 5004 (2), pp. 251-287 : 261

Neopetrosia subtriangularis ( Duchassaing, 1850)

Brazilian records (not examined): Brazil, Maranhão State, MCNPOR 5340, 0.36667º S, 44.86667º W, 72 m depth, Coll. R. V. ‘Antares’, 2001.7.18 ; MCNPOR 5003, 0.58667º S, 43.34861º W, 94 m depth, Coll. R. V. ‘Antares’, 1999.6.14 .

Diagnosis. Thick ramose fragments. Smooth surface, with conspicuous oscules, 1.5–6 mm diam. Ectosome uni- to multispicular network, with triangular to polygonal meshes (80–280 μm in diam., tracts 10–90 μm thick). Choanosome with rectangular and triangular meshes (80–250 μm diam.), channels 200–440 μm diam., primary multispicular ascending tracts (up to 15 spicules across, 40–60 μm diam.), uni to plurispicular interconnecting sec- ondary tracts (20–70 μm thick). Oxeas, slightly curved, acerate, blunt to conical ends, simple or stepped, 60–230 x 2.5–6.9 μm [adapted from Campos et al. 2005].

Description. Refer to Campos et al. (2005).

Distribution. Tropical Atlantic. Brazil: Maranhão State ( Campos et al. 2005); Caribbean ( Van Soest 1980; Zea 1987; Lehnert 1993); Suriname ( Van Soest 2017).