Erythropodium Kölliker 1865

Carpinelli, Ágatha Nascimento, Cordeiro, Ralf Tarciso Silva, Neves, Leonardo Mitrano, Moura, Rodrigo Leão De & Kitahara, Marcelo Visentini, 2020, Erythropodium caribaeorum (Duchassaing and Michelotti, 1860) (Cnidaria Alcyonacea), an additional alien coral in the Southwestern Atlantic, Zootaxa 4822 (2), pp. 175-190 : 177

publication ID

publication LSID


persistent identifier

treatment provided by


scientific name

Erythropodium Kölliker 1865


Genus Erythropodium Kölliker 1865

Erythropodium caribaeorum ( Duchassaing and Michelotti 1860)

Description. Encrusting and membranous carpet-like colony, strongly attached to the substrate and with up to 25 evenly distributed polyps (<5 cm) per square centimeter. Pinnules elongate, arranged in a single pair of rows (one at each side of a tentacle). Calyces inconspicuous or absent. When present, calyces form small mounds with eight lobules each. Sclerites are six-radiate ( Fig. 2 View FIGURE 2 ), arranged in two layers with similar sclerites in terms of form and size ( Table 1 View TABLE 1 ). Sclerites ( Fig. 2 View FIGURE 2 ) evenly distributed in coenenchyme, polyp body wall, tentacles and pinnules, slightly smaller and more densely packed in tentacles and pinnules. Cortical layer thick, translucent or white. Inner layer slender with slightly smaller dark-red sclerites, sometimes fused.

Phylogenetic analysis. Sequencing of nuclear 28SrDNA resulted in ~700 bp, and the mitochondrial mtMutS and COI+igr in ~720 bp each, yielding a concatenated alignment of 1.202 phylogenetically informative sites. All analyses resulted in similar topologies ( Fig. 3 View FIGURE 3 ) and match E. caribaeorum (GenBank accession number: GQ342480 View Materials — specimen RMNH Coel. 40829) with a p- distance of only 0.3%. A slightly low bootstrap branch support was found with BI when compared to ML.

Distribution and abundance. In the SWA, E. caribaeorum seems to be contained to the study site in Angra dos Reis, Rio de Janeiro, where a single 2 m 2 colony was recorded at 5 m depth.