Volvulella ornata (Pilsbry & Johnson, 1917)

Cunha, Carlo M. & Salvador, Rodrigo B., 2018, Type specimens of fossil " Architectibranchia " and Cephalaspidea (Mollusca, Heterobranchia) in the Academy of Natural Sciences of Philadelphia, Zoosystematics and Evolution 94 (2), pp. 505-527 : 505

Volvulella ornata (Pilsbry & Johnson, 1917) Figure 6 C–D

Volvula ornata Pilsbry & Johnson, 1917: 151.

Type locality.

Dominican Republic; stratum: "Santo Domingan Beds" (either Cercado or Gurabo Formations); age: Miocene/Pliocene.

Type material.

Holotype, ANSP IP3178 (as “type” in Richards 1968: 167); paratypes, ANSP IP81665, 6 shells.

Remarks.

Pilsbry and Johnson (1917) did not clearly indicate which one of their specimens is the holotype, merely indicating the presence of a “Type”. Judging by the conventions used elsewhere in their paper, we here consider the holotype to be the specimen measured by these authors. Besides the holotype, Pilsbry and Johnson (1917) mentioned seven specimens, one of which is presently missing.

Current taxonomic status.

Volvulella ornata (Pilsbry & Johnson, 1917) ( Pilsbry 1922).