About Coryphella nobilis A.E.Verrill, 1880
This species of Coryphella has a translucent white body marked with opaque white patches. The digestive gland located in its cerata is colored either orange or red. Its rhinophores are pale yellow-brown and covered in small papillae. Typically, this nudibranch reaches a mature length of 40–50 mm (which equals 4–5 cm), and the longest individual ever recorded measured 63 mm. Coryphella nobilis was first described from a single specimen that was dredged in 1879, at a depth of 145 m off the coast of Cape Cod. It has a wide distribution across the northern Atlantic Ocean, found from Norway south to Ireland, and along the North American coast south to New England. Ecologically, the minimum depth this species has been recorded at is 20 m, and the maximum recorded depth is 190 m.
