Davidaster is a genus of crinoids. According to the World Register of Marine Species, a number of species that originally were included in the genus Nemaster are now included in Davidaster.[1] Members of this genus have wedge-shaped arms, except for the basal ones, often longer than they are wide. The mouth is off centre and there are no pinnule combs after pinnule 3. The primary comb has the teeth widely separated and confluent with the lateral edge of the segment.[1]
Davidaster is a genus of crinoids. According to the World Register of Marine Species, a number of species that originally were included in the genus Nemaster are now included in Davidaster. Members of this genus have wedge-shaped arms, except for the basal ones, often longer than they are wide. The mouth is off centre and there are no pinnule combs after pinnule 3. The primary comb has the teeth widely separated and confluent with the lateral edge of the segment.
Davidaster est un genre de crinoïde de la famille des Comasteridae (ordre des Comatulida), originaire du golfe du Mexique.
Le genre Davidaster a été créé en 1986 par Anne Kathleen Hoggett (d) et Francis W. E. Rowe (d).
Ce sont deux espèces de comatules fauves, très proches mais distinguées par la taille et la profondeur. Elles se tiennent cachées pendant la journée, et ne laissent émerger que leurs longs bras la nuit, pour se nourrir[2].
Selon World Register of Marine Species (20 juillet 2021)[1] :
Davidaster est un genre de crinoïde de la famille des Comasteridae (ordre des Comatulida), originaire du golfe du Mexique.
Davidaster is een geslacht van haarsterren uit de familie Comatulidae.
Davidaster is een geslacht van haarsterren uit de familie Comatulidae.
