Amigdoscalpellum costellanum (Cirripedia)
General description:
Distribution: Indian Ocean: Eastern, Western; Pacific, Southwest and Western Central; Atlantic, Southeast and Eastern central. Known depth range 110 to 2397 m.
Remarks. This species is known from several widely dispersed locations and shows a great degree of apparent intraspecific variability. Further study is required to establish the boundaries of this species.
Diagnostic description:
Supplementary descriptions: Newman & Ross (1971) (as Arcoscalpellum buccinum sp.nov.) and Foster (1978).