WoRMS source details
Cordonis, C., Moraes, F. & Muricy, G. 2012. A new species of Latrunculia (Biannulata) (Porifera: Demospongiae) from Rio de Janeiro, south-eastern Brazil. Marine Biodiversity 43: 105-111, DOI 10.1007/s12526-012-0132-5
166435
Publication
In this study, we describe a new species of Latrunculia (Demospongiae: Poecilosclerida) from shallow waters in Rio de Janeiro, south-eastern Brazil. Latrunculia (Biannulata) janeirensis sp. nov. is cushion-shaped, brown in color, with raised oscular papillae and spherical or fungiform areolate porefields, a confused choanosomal skeleton
without spicule tracts, and small styles. The developmental stages of the anisodiscorhabds have a thin axis and four whorls with irregular, non-ramified rays. The manubrium and the median whorl are only slightly larger than the apical and subsidiary whorls, making the spicule appear almost symmetrical. Fully developed anisodiscorhabds have a stout axis; the apical whorl is ramified, spined, with leaf-like rays. The manubrium is larger and smoother than the apical
whorl, and the median and subsidiary whorls have pointed, spined rays fused only at their bases. This is the first species of Latrunculia described from Rio de Janeiro State and the second from Brazil. This new record extends the distribution of the subgenus Biannulata to the south-western Atlantic.
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Latrunculia (Biannulata) janeirensis Cordonis, Moraes & Muricy, 2012 (original description)
Southeastern Brazil for Latrunculia (Biannulata) janeirensis Cordonis, Moraes & Muricy, 2012
Holotype MNRJ 13621, geounit Southeastern Brazil, identified as Latrunculia (Biannulata) janeirensis Cordonis, Moraes & Muricy, 2012
Etymology
The name ‘janeirensis’ refers to the species distribution, which is restricted thus far to Rio de Janeiro, in ... [details]