A New Species of the Genus Ehlersileanira (Polychaeta: Sigalionidae) from the Andaman Sea, Thailand

Abstract

Ehlersileanira andamanensis n. sp. is described from southwestern Thailand in the Andaman Sea, based on specimens collected during the Thai-Danish BIOSHELF Project in 1996–2000. The new species differs from E. incisa (Grube, 1877) by having auricles and ctenidia on the ceratophore of the median antenna and dorsal tubercles on segment 3, whereas in the latter species the ceratophore of the median antenna only has auricles and there are no dorsal tubercles on segment 3.