Noumeaella sp. 4 (undescribed)
Members of the genus Noumeaella belong to the family Facelinidae Bergh, 1889. The group is characterized by having the anus situated with in the cerata, behind the inter-hepatic space. This characteristic alone differentiates them from species included in the families Flabellinidae and Aeolididae. Their radula is a series of rachidian teeth with long basal limbs and a large pointed cusp flanked with denticles.
Noumeaella sp. 4 has a broad head with short, sparsely papilated rhinophores. Coloration varies from light brown to reddish orange with fine opaque white markings. The cerata are arranged in 8-9 distinct clusters.
Little is known about it biology of this undscribed species but as Dave's photo shows here it is found on reddish sponges (it is likely feeding on hydroids living on the sponges) on sandy bottoms in Madagascar, Indonesia and Malaysia.
Wouldn't it be great if we found this guy in Anilao at our Nudibranch Workshop next March!
Nice find David!
Dave Cowdery is a retired biomedical engineer and Divemaster at Byron Bay Australia. He has over 5000 logged dives. He is a keen participant in trips organised by Graham Abbott at Diving4Images and has dived the tropics extensively from Cocos Keeling Islands east to Niue. 3 Camera equipment used: D800 with DS160 substrobes
Send Dave mail at firstname.lastname@example.org