Belongs within: Columbellidae.
Amphissa is a genus of dove shells found in the North Atlantic and East Pacific. Species have a buccinoid shell with strongly impressed sutures (Radwin 1978).
Characters (from Radwin 1978): Shell moderate to large (10–25 mm), and buccinoid; spire high and acute, whorls strongly convex, suture impressed; body whorl half shell length, aperture broadly open, apertural lip unthickened, non-denticulate within, columella straight, smooth, siphonal canal short; sculpture generally of numerous strong axial ribs crossed by spiral elements of varying strength; color off-white to brown with a straw-colored periostracum. Each radular row has a flat, subrectangular median tooth flanked on each side by an elongate, sigmoid, tricuspid lateral tooth.
<==Amphissa Adams & Adams 1853R78 |--A. columbiana Dall 1916 [=Buccinum corrugatus Reeve 1847 non Brocchi 1814, *A. corrugata]R78 |--A. acuminata (Smith 1915)S11 |--A. bicolor Dall 1892O27 |--A. haliaeeti (Jeffreys 1867)BW80 (see below for synonymy) |--A. reticulata Dall 1916O27 |--A. undata Carpenter 1864O27 `--A. versicolor Dall 1871O27 |--A. v. versicolorO27 |--A. v. cymata Dall 1916O27 `--A. v. incisa Dall 1919O27
Amphissa haliaeeti (Jeffreys 1867)BW80 [=Columbella haliaeetiR78; incl. Bela grimaldii Dautzenberg 1889BW80, B. limatula Locard 1896BW80]
*Type species of generic name indicated
References
[BW80] Bouchet, P., & A. Waren. 1980. Revision of the north-east Atlantic bathyal and abyssal Turridae (Mollusca, Gastropoda). Journal of Molluscan Studies Supplement 8: 1–119.
[O27] Oldroyd, I. S. 1927. The Marine Shells of the West Coast of North America vol. 2 pt 1. Stanford University Press: Stanford University (California).
[R78] Radwin, G. E. 1978. The family Columbellidae in the western Atlantic. Part IIb.—The Pyreninae (continued). Veliger 20 (4): 328–344.
[S11] Simone, L. R. L. 2011. Phylogeny of the Caenogastropoda (Mollusca), based on comparative morphology. Arquivos de Zoologia 42 (4): 161–323.