Heine Jensen, Norwegen
Info
Coryphella chriskaugei (Korshunova, Martynov, Bakken, Evertsen, Fletcher, Mudianta, Saito, Lundin, Schrödl & Picton, 2017)
The holotype describing this species was 45 mm long (live) and came from Norway, entrance to Sognefjord, Gulen Dive Resort, March 19, 2015, depth 20 m.
The species name "chriskaugei": In honor of Christian Skauge (Gulen Dive Resort and Scubapixel), the organizer of the “Nudibranch Safari” and the first to notice the heterogeneity of the traditional Coryphella lineata in the field in Norway, including photographic records.
Ground color translucent white, digestive glands are pale pink, orange-brown to red-brown depending on location and diet, upper parts of the cerata with white pigment, usually one to several interrupted fine white lines run along the back of the cerata, followed by thin, opaque white lines. Body relatively narrow. Feet and tail moderate, front corners of feet long. Mouth tentacles long.
Rhinophores about 1.5 times longer than the mouth tentacles, slightly wrinkled. Dorsal cerata are finger-shaped to fusiform and form several groups along the dorsal edges. The cerata taper to a point. The dorsal sides of the mouth tentacles are covered with a thin, opaque white line. One to several dotted fine white lines run along the back of cerata and are sometimes absent.
Usually associates with Tubularia colonies at a depth of 20-40 m. Attacks and feeds on polyps of Tubularia indivisa. Juveniles probably eat Eudendrium spp first. or other hydrozoan species.
These thread snails are common in some places. The egg masses appear as a narrow string in irregular, compressed pink or cream spirals. Reproductive period from February to June; Larvae live planktonically as veligers.
These thread snails are so far known from the northeast Atlantic, including Ireland, Great Britain (Scotland, England, Wales), Norway.
Similar to Coryphella lineata.
The holotype describing this species was 45 mm long (live) and came from Norway, entrance to Sognefjord, Gulen Dive Resort, March 19, 2015, depth 20 m.
The species name "chriskaugei": In honor of Christian Skauge (Gulen Dive Resort and Scubapixel), the organizer of the “Nudibranch Safari” and the first to notice the heterogeneity of the traditional Coryphella lineata in the field in Norway, including photographic records.
Ground color translucent white, digestive glands are pale pink, orange-brown to red-brown depending on location and diet, upper parts of the cerata with white pigment, usually one to several interrupted fine white lines run along the back of the cerata, followed by thin, opaque white lines. Body relatively narrow. Feet and tail moderate, front corners of feet long. Mouth tentacles long.
Rhinophores about 1.5 times longer than the mouth tentacles, slightly wrinkled. Dorsal cerata are finger-shaped to fusiform and form several groups along the dorsal edges. The cerata taper to a point. The dorsal sides of the mouth tentacles are covered with a thin, opaque white line. One to several dotted fine white lines run along the back of cerata and are sometimes absent.
Usually associates with Tubularia colonies at a depth of 20-40 m. Attacks and feeds on polyps of Tubularia indivisa. Juveniles probably eat Eudendrium spp first. or other hydrozoan species.
These thread snails are common in some places. The egg masses appear as a narrow string in irregular, compressed pink or cream spirals. Reproductive period from February to June; Larvae live planktonically as veligers.
These thread snails are so far known from the northeast Atlantic, including Ireland, Great Britain (Scotland, England, Wales), Norway.
Similar to Coryphella lineata.
