Narcissia ahearnae, a new species of sea star from the Western Atlantic (Echinodermata: Asteroidea: Valvatida) Author Pawson, David L. text Zootaxa 2007 1386 53 58 journal article 10.5281/zenodo.175124 f6f215c1-ce61-4dbf-b0bf-9976d5845fd0 1175­5326 175124 Key to species in the genus Narcissia 1. Carinal ridge conspicuous, undulating in vertical and horizontal planes from center of disc to mid­point of arms. Red to scarlet in life. Western Atlantic ............................................ Narcissia ahearnae new species ­ Carinal ridge conspicuous or inconspicuous, straight, never undulating .................................................... 2 2. Papular pores mostly single. First subambulacral row of spines not similar to furrow spines................... 3 ­ Papular pores mostly paired. First subambulacral row of spines similar to furrow spines. Cream blotched with rust red in life. Western Atlantic ..................................................... Narcissia trigonaria Sladen, 1889 3. Subambulacral spines granuliform, in two rows of four. Color in life bright scarlet, paler below. Eastern Atlantic .......................................................................................... Narcissia canariensis (d’Orbigny, 1839) ­ Subambulacral spines truncated, in three rows of three. Color in life orange red. Eastern Pacific ............ ............................................................................................................ Narcissia gracilis A. H. Clark, 1916