Cyamon arguinense van Soest, Carballo & Hooper 2012

Cyamon arguinense is 'n gewone sponsspesie uit die familie van die Raspailiidae. Die wetenskaplike naam van die spesie is die eerste keer geldig gepubliseer in 2012 deur Van Soest, Carballo & Hooper.

Cyamon arguinense adalah spesies spons yang tergolong dalam kelas Demospongiae. Spesies ini juga merupakan bagian dari genus Cyamon dan famili Raspailiidae. Nama ilmiah spesies ini pertama kali diterbitkan pada tahun 2012 oleh Van Soest, Carballo & Hooper.

Seperti spons pada umumnya, spesies ini memiliki tubuh yang berpori dan permukaan yang keras seperti batu. Selain itu, Cyamon arguinense juga dapat menyerap oksigen dari air melalui proses difusi.

Thin crust, (Fig. 6A) hispid surface. Color red (alive), dirty white (alcohol). Consistency soft, easily damaged, size 2.5 × 1.5 cm × 2–3 mm. Skeleton: columnar bundles of megascleres issuing from a basal layer of polyactines. Columns consist of a single long subtylostyle sheathed in a tight bundle of fusiform centrotylote styles; bundles separate, interconnected only near the substratum. Spicules of three types: subtylostyles (assumed to be homologues of the long thin styles), centrotylote styles (assumed homologues of the short thin styles), polyactines (short thick styles apparently lacking). Long thin (subtylo-)styles (Fig. 6B, B1) with prominent heads, and bluntly rounded pointed ends, 1229–1482.1–1668 × 12–13.9–18 µm. Short thin styles, fusiform, centrotylote (Fig. 6C, C1), tyle slightly excentric, rounded end tapering, 244–521.5–719 × 2.5–6.4–9 µm. Polyactines, (Fig. 6D) predominantly four-claded, (a few five-claded forms were observed), basal cladus with coarse recurved spines, lateral cladi entirely smooth, basal cladus 51–58.6–69 × 5–6.5–8, lateral cladi 31–55.7–78 × 4–6.1–8 µm.

(Fig. 5). So far known only from the sandstone ridges of coastal flats of the Banc d’ Arguin, Mauritania, West Africa.