Raspailia (Parasyringella) rubra, Aguilar-Camacho & Carballo, 2013

Aguilar-Camacho, Jose Maria & Carballo, Jose Luis, 2013, Raspailiidae (Porifera: Demospongiae: Axinellida) from the Mexican Pacific Ocean with the description of seven new species, Journal of Natural History (J. Nat. Hist.) 47 (25 - 28), pp. 1663-1706 : 1664-1668

publication ID	https://doi.org/ 10.1080/00222933.2013.769642
publication LSID	lsid:zoobank.org:pub:74DE7552-F218-48AF-89E2-2EB24465404F
persistent identifier	https://treatment.plazi.org/id/03E287BA-9E59-531A-FE32-F9A8346A8C2F
treatment provided by	Carolina
scientific name	Raspailia (Parasyringella) rubra
status

Treatment

Genus Raspailia Nardo, 1833

Subgenus Parasyringella Topsent, 1928 Raspailia (Parasyringella) rubra sp. nov.

( Figures 1A View Figure 1 , 2 View Figure 2 , 3 View Figure 3 )

Material examined

Holotype: MCNM 1.01 / 655, 11 / 10 / 2006, Isla Redonda ( Marietas Nayarit) 13 m (20 ◦ 42 ′ 04 ′′ N, 105 ◦ 34 ′ 31 ′′ W) . Paratype: 1601-LEB-ICML-UNAM, 11 / 10 / 2006, Isla Redonda ( Marietas Nayarit) 11 m (20 ◦ 42 ′ 04 ′′ N, 105 ◦ 34 ′ 31 ′′ W).

Description

Fragment of a ramified sponge 3 cm thick at the base and 6 cm high. Oscules and ostia not observed. Surface hispid with the points of the ectosomal styles protruding above the surface ( Figure 3D View Figure 3 ). Rounded lobes evenly distributed (8 mm in diameter). Consistency fleshy and difficult to tear. Colour in life red, white in preservation ( Figure 1A View Figure 1 ).

Skeleton

Choanosomal fusiform oxeas: 165–250 × 5–12 µm ( Figures 2C View Figure 2 , 3B View Figure 3 ). Straight ectosomal extra-axial styles: 1020–1445 × 5–10 µm ( Figures 2A, B View Figure 2 , 3A View Figure 3 ). Ectosomal anisoxeas / styles: 210–390 × 1.25–2.5 µm ( Table 1) ( Figures 2D View Figure 2 , 3C View Figure 3 ). The ectosomal skeleton is a dense layer (30 µm thick) of bundles of anisoxeas / styles. There is an extra-axial skeleton formed by multispicular styles with the points protruding externally in the ectosomal layer. The choanosomal axial skeleton is formed by primary multispicular fibres (60–100 µm thick) interconnected by secondary bispicular or multispicular fibres (15–45 µm thick). The reticulum forms quadrangular irregular meshes (120–160 µm) ( Figure 3D View Figure 3 ).

Remarks

Raspailia (Parasyringella) rubra sp. nov. constitutes the first record of the subgenus in the Eastern Pacific. Species of the subgenus Parasyringella are characterized by an axial extra-axial skeleton ( Hooper 2002) and bearing choanosomal spicules, styles or oxeas ( Table 2). The species assigned to this subgenus with oxeas as choanosomal spicules are: R. (Parasyringella) elegans (Lendenfeld 1887) and R. (Parasyringella) nuda Hentschel 1911 . Raspailia (Parasyringella) elegans is an orange planar or biplanar fan sponge from the north-western coast of Australia ( Hooper 1991). It has choanosomal oxeas (176–275 × 4–11 µm), extra-axial styles (478–830 × 2–5 µm) and ectosomal oxeas (108–164 × 1.5–3.5 µm). The extra-axial styles are longer in R. (Parasyringella) rubra sp. nov. than in R. (Parasyringella) elegans ( Table 2). Besides, there are some differences in the morphology and length of the ectosomal spicules (ectosomal oxeas in R. (Parasyringella) elegans versus ectosomal styles / anisoxeas in Raspailia (Parasyringella) rubra sp. nov.). Raspailia (Parasyringella) nuda Hentschel 1911 is an orange arborescent or stipitate sponge described from Australia ( Hooper 1991). It has choanosomal oxeas / anisoxeas (260–640 × 7–24 µm), subectosomal styles (820–1673 × 9–16 µm) and ectosomal oxeas / anisoxeas (243–472 × 1.5–7 µm). The choanosomal oxeas are longer in R. (Parasyringella) nuda than in R. (Parasyringella) rubra sp. nov.