Monanchora arbuscula Duchassaing & Michelotti 1864
Authors/Creators
Description
Monanchora arbuscula (Duchassaing & Michelotti, 1864)
(Figure 3 d)
Synonymy and References. Echinostylinos unguiferus de Laubenfels, 1953b: 528, fig. 6. Monanchora barbadensis Hechtel, 1969: 21, fig. 3; van Soest (1984a): 40, fig. 12.
Material. USNM 1229045, Carrie Bow Cay forereef, low spur and groove zone, underside of Agaricia coral rubble, 8–9 m; K. Ruetzler col. 7 May 1973. USNM 1229046, 1229047, Carrie Bow Cay forereef slope, lower surface of coral rock, 25 m; K. Ruetzler col. 26 Apr 1974. USNM 1229048, Carrie Bow Cay forereef, low spur and groove zone, underside of Agaricia coral rubble, 8–9 m; K. Ruetzler col. 11 May 1975. USNM 1229049, Carrie Bow Cay forereef, high spur and groove zone, mini-cave, 4 m; K. Ruetzler col. 11 May 1979. USNM 1229050, Carrie Bow Cay forereef spur, at the base of the sponge Svenzea zeai (Alvarez, van Soest & Ruetzler), 6 m; K. Ruetzler col. 1 Feb 1997. USNM 1229051, 1229052, Curlew Bank, forereef cave, 20 m; C. Piantoni col. 28 Jun 2007. USNM 1229053, Curlew Bank forereef, lower surface of dead Agaricia coral plate, 21 m; C. Piantoni, col. 28 Jun 2007. USNM 1229054, Carrie Bow Cay forereef, cryptic in cavity, 28 m; M. C. Diaz col. 8 Sep 2009. USNM 1229055, Curlew Bank forereef slope, small cave, 20 m; C. Piantoni and M. Parrish col. 23 Aug 2012. Field observation (12-30, no material preserved): Curlew Bank forereef slope, small cave, 20 m; C. Piantoni and M. Parrish col. 23 Aug 2012.
External morphology. All specimens encountered were thin (1–3 mm) encrustations covering 2–50 cm 2 substratum. Small oscula (1–2 mm), slightly elevated. Most specimens, when undisturbed, show dark red subectosomal canals leading toward the oscula, contrasted against a whitish hue in the surrounding ectosome. Color is deep red throughout.
Skeleton structure. Megascleres (subtylostyles, tylostyles) may be erect at the base but are mostly forming tracts that brush out toward the ectosome. Microscleres are dispersed between the tracts.
Spicules. Thick subtylostyles I, usually straight, ranging from pure styles to tylostyles with poorly pronounced tyle: 160–360 x 4–15 (237 x 9) Μm; thin subtylostyles II (more common than I), straight or slightly curved: 120–280 x 3–8 (237 x 4) Μm; anchorate isocheles (unguiferate, with 3–5 teeth): 20–30 (23) Μm; reduced chelae (appearing like sigmas): 6–12 (8) Μm.
Ecology. In forereef caves or cryptic under rocks and platy coral rubble, 4– 28 m.
Distribution. Gulf of Mexico, Caribbean, off Brazil.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Scientific name authorship
- Duchassaing & Michelotti
- Kingdom
- Animalia
- Phylum
- Porifera
- Order
- Poecilosclerida
- Family
- Crambeidae
- Genus
- Monanchora
- Species
- arbuscula
- Taxon rank
- species
- Taxonomic concept label
- Monanchora arbuscula Duchassaing, 1864 sec. Rützler, Piantoni, Van & Díaz, 2014
References
- Duchassaing de Fonbressin, P. & Michelotti, G. (1864) Spongiaires de la mer Caraibe. Natuurkundige verhandelingen van de Hollandsche maatschappij der wetenschappen te Haarlem, 21, 1 - 124.
- de Laubenfels, M. W. (1953 b) Sponges from the Gulf of Mexico. Bulletin of Marine Science of the Gulf and Caribbean, 2 (3), 511 - 557.
- Hechtel, G. J. (1969) New species and records of shallow water Demospongiae from Barbados, West Indies. Postilla, 132, 1 - 38.
- van Soest, R. W. M. (1984 a) Marine sponges from Curacao and other Caribbean localities. Part III. Poecilosclerida. Studies on the fauna of Curacao and other Caribbean islands, 62 (199), 1 - 167.