red cerata bases
young, 3 mm
Cratena sp. #1
|Maximum size: 8 mm.
is a slender species that usually has two distinctive cup-like
on it's rhinophores. The annuli, however, may be irregular in young
animals (and are sometimes absent). The
body is translucent cream flecked with orange
and white. The cerata often have dark orange to red-violet pigment basally,
orange subapical band and/or irregular cream axial streaks. There are
prominent cnidosacs in their tips.
Cratena sp. #1 is
a moderately rare species found in moderately exposed rocky habitats at
depths of < 1 to 8 m (< 3 to 26 ft).
Big Island, Maui, Oahu, Kauai and Midway: widely distributed in the Indo-Pacific.
Taxonomic notes: It was first
recorded in Hawaii from Mala Wharf, Maui by CP on May 13, 1991.
Photo: Pippa Swannell: 8
mm: off Kaloko-Honokohau, Big Island; Aug. 16, 2022.
Observations and comments:
1: ( )