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Epitonium (Acrilla)

Gastropoda - Epitoniidae

Taxonomy
Acrilla was named by Adams and Adams (1860) [Sepkoski's age data: K Camp-l R]. It is extant.

It was reranked as Scala (Acrilla) by Dall (1889); it was reranked as Scalaria (Acrilla) by Tate (1893); it was reranked as Epitonium (Acrilla) by Maury (1925), Rivera (1957); it was reranked as Amaea (Acrilla) by Abbass (1967), Moneer et al. (2024).

It was assigned to Scala by Dall (1889); to Scalaria by Tate (1893); to Epitonium by Maury (1925), Rivera (1957); to Epitoniidae by Durham (1937), Turner (1938), Durham (1944), Harris and Palmer (1947), Dockery (1977), Zinsmeister (1983), Squires and Demetrion (1992), Wilson (1993); to Neotaenioglossa by Sepkoski (2002); and to Amaea by Abbass (1967), Moneer et al. (2024).

Subtaxa
Acrilla affinis, Acrilla procerus, Acrilla unilineata, Amaea (Acrilla) affinis, Amaea (Acrilla) gallica, Amaea (Acrilla) issawii, Amaea (Acrilla) niloatica, Epitonium (Acrilla) peruvianum, Scalaria (Acrilla) leptalea
Species lacking formal opinion data
Epitonium charitopolos, Epitonium emydoneus, Epitonium expectatum, Epitonium foliaceicostatum, Epitonium foliaceicostum, Epitonium foliaceicostum, Epitonium foliaceicostum, Epitonium foliaceiscostatum, Epitonium gabbi, Epitonium groenlandica, Epitonium humphreysi, Epitonium imperiale, Epitonium krebsii, Epitonium leroyi, Epitonium multiliniferum, Epitonium muricatum, Epitonium novangliae, Epitonium paytens, Epitonium replicata, Epitonium rushii, Epitonium sculptatum, Epitonium sericifilum, Epitonium suboptima, Epitonium venezuelense

Synonymy list
YearName and author
1860Acrilla Adams and Adams
1889Scala (Acrilla) Dall p. 312
1893Scalaria (Acrilla) Tate p. 317
1925Epitonium (Acrilla) Maury p. 243
1937Acrilla Durham p. 506
1938Acrilla Turner p. 80
1944Acrilla Durham p. 158
1947Acrilla Harris and Palmer p. 244
1957Epitonium (Acrilla) Rivera p. 173
1967Amaea (Acrilla) Abbass p. 41
1977Acrilla Dockery p. 51
1983Acrilla Zinsmeister p. 1291
1992Acrilla Squires and Demetrion p. 28
1993Acrilla Wilson p. 274
2002Acrilla Sepkoski
2024Amaea (Acrilla) Moneer et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classGastropoda
subclassCaenogastropoda(Cox 1959)
superfamilyEpitonioidea(Berry 1910)
familyEpitoniidaeBerry 1910
genusEpitoniumBolten 1798
subgenusAcrilla(Adams and Adams 1860)

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Subg. Epitonium (Acrilla) Adams and Adams 1860
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†Acrilla affinis Deshayes 1861
†Acrilla procerus Zinsmeister 1983
†Acrilla unilineata Heilprin 1880
†Amaea (Acrilla) affinis Deshayes 1861
†Amaea (Acrilla) gallica de Boury 1887
†Amaea (Acrilla) issawii Abbass 1967
†Amaea (Acrilla) niloatica Oppenheim 1906
Diagnosis
ReferenceDiagnosis
J. W. Durham 1937Shell thin, slender, medium size; whorls convex, with axial varices; faint spiral sculpture present; basal disk with spiral ribs; aperture oval to subquadrate; outer lip not thickened, inner lip thin, sometimes presenting only the aspect of a callus.