Belongs within: Muricidae.
Favartia is a pantropical genus of murexes bearing flattened varices on the shell (Wilson 1994).
Characters (Wilson 1994): Broadly fusiform, spire high; aperture small, ovate, lirate within; anal sulcus shallow; anterior canal short, recurved; body whorl with three to seven flattened varices perpendicular to surface; spiral cords scabrously laminate, sometimes extending beyond varical margins as short spines.
<==Favartia Jousseaume 1880DM88
|--F. (Favartia)BC01
| |--*F. (F.) brevicula (Sowerby 1834) [=Murex breviculus]DM88
| |--F. (F.) judithae D’Attilio & Bertsch 1980DB80
| |--F. (F.) obtusa (Sowerby 1894) [=Aspella (F.) obtusa]ED65
| |--F. (F.) paulboschi Smythe & Houart 1984BC01
| |--F. (F.) pelepili D’Attilio & Bertsch 1980DB80
| `--F. (F.) puntagordana (Weisbord 1962) [=Murex (Favartia) puntagordanum]W62
|--F. (Caribiella Perrilliat 1972)BC01, RD75
| |--‘*Caribiella’ intermedia (Adams 1850) [=Murex intermedius]RD75
| `--F. (C.) purdyae Vokes & D’Attilio 1980BC01
`--F. (Pygmaepterys Vokes 1978)BC01
`--F. (P.) bellini (D’Attilio & Myers 1985) [=Pygmaepterys bellini]BC01
Favartia incertae sedis:
F. cecalupoi Bozzetti 1993BC01
F. cellulosa (Conrad 1846)DB80
F. cocosensis Myers & D’Attilio 1990BC01
F. confusa (Brazier 1877)W94
F. crouchi (Sowerby 1894) [incl. F. guamensis Emerson & D’Attilio 1979]BC01
F. humilis (Broderip 1833)DB80
F. incisa (Broderip 1833)EO65
F. jeanae Bertsch & D’Attilio 1980BC01
F. lindae Petuch 1987PMB15
F. macgintyi (Smith 1938)DB80
F. maculata (Reeve 1845) [incl. F. dorothyae Emerson & D’Attilio 1979]BC01
F. salmonea (Melvill & Standen 1899)W94
F. striasquamosa Ponder 1972DB80
F. voorwindei Ponder 1972DB80
*Type species of generic name indicated
References
[BC01] Boyko, C. B., & J. R. Cordeiro. 2001. Catalog of Recent type specimens in the Division of Invertebrate Zoology, American Museum of Natural History. V. Mollusca, part 2 (class Gastropoda [exclusive of Opisthobranchia and Pulmonata], with supplements to Gastropoda [Opisthobranchia], and Bivalvia). Bulletin of the American Museum of Natural History 262: 1–170.
[DB80] D’Attilio, A., & H. Bertsch. 1980. Four species of Pterynotus and Favartia (Mollusca: Gastropoda: Muricidae) from the Philippine Islands. Transactions of the San Diego Society of Natural History 19 (12): 169–179.
[DM88] D’Attilio, A., & B. W. Myers. 1988. A new species of Favartia from the eastern Pacific (Gastropoda: Muricidae). Nautilus 102 (3): 106–109.
[ED65] Emerson, W. K., & A. D’Attilio. 1965. Aspella (Favartia) angermeyerae, n. sp. Nautilus 79 (1): 1–4.
[EO65] Emerson, W. K., & W. E. Old Jr. 1965. New molluscan records for the Galapagos Islands. Nautilus 78 (4): 116–120.
[PMB15] Petuch, E. J., R. F. Myers & D. P. Berschauer. 2015. The Living and Fossil Busycon Whelks: Iconic Mollusks of Eastern North America. San Diego Shell Club, Inc.
[RD75] Radwin, G. E., & A. D’Attilio. 1975. A catalogue of muricacean generic taxa. Transactions of the San Diego Society of Natural History 17 (20): 279–292.
[W62] Weisbord, N. E. 1962. Late Cenozoic gastropods from northern Venezuela. Bulletins of American Paleontology 62: 7–672.
[W94] Wilson, B. 1994. Australian Marine Shells vol. 2. Prosobranch Gastropods. Part Two (Neogastropods). Odyssey Publishing: Kallaroo (Western Australia).