Exaiptasia, Grajales, Alejandro & Rodríguez, Estefanía, 2014

Grajales, Alejandro & Rodríguez, Estefanía, 2014, Morphological revision of the genus Aiptasia and the family Aiptasiidae (Cnidaria, Actiniaria, Metridioidea), Zootaxa 3826 (1), pp. 55-100 : 68-69

Genus Exaiptasia gen. nov. Grajales & Rodríguez

Diagnosis. Aiptasiidae with wide, regularly shaped pedal disc. Column elongated, smooth, with cinclides in 2–3 longitudinal rows in mid-column; column not distinctly divisible into scapus and capitulum. Mesogleal marginal sphincter strong but short, slightly reticulate. Strong longitudinal ectodermal muscles in distal column. Tentacles long, simple, to 96, always smooth, without projections. Same number of mesenteries distally and proximally. Six pairs of perfect mesenteries. Only first and second cycles fertile. Retractor muscles restricted. Acontia well developed. Symbiotic with Symbiodinium spp. Asexual reproduction by pedal laceration. Cnidom: spirocysts, basitrichs, microbasic b -mastigophores and p -amastigophores.

Type species. Dysactis pallida Agassiz in Verrill, 1864 by original designation.

Included species. Exaiptasia pallida comb. nov.

Etymology. The genus name comes from the Latin prefix "Ex" meaning "out" and Aiptasia , the genus in which it was included before.

Taxonomic remarks. We erect a new genus for Exaiptasia pallida comb. nov. because there is no name available that applies to the combination of characters corresponding to Exaiptasia pallida comb. nov.