Gili, C.,  2015. Revision of the Nassariidae (Gastropoda, Neogastropoda) of the malacological collection of the Museu de Ciències Naturals de Barcelona,.  Arxius de Miscel·lània Zoològica, 13.

Annex  3. Some cases with uncertain geographic origin.

Anexo 3. Algunos casos con origen geográfico incierto.

In several cases, it was difficult or impossible to determine the source of the sample’s specimens. Next, concrete situations with examples of samples where they were found are detailed.

Inconsistent locality
Sample with one or more specimens of a species belonging to one geographical region, indicating on its label a locality of a region where the species is known that does not live there. The MZB 86-0162 sample contains a specimen of Nassarius semisulcatus (Rousseau, 1854), an Indo-pacific species, while its label indicated Mahon, that is to say, a Mediterranean locality. In such cases, in the review, the reference to the locality remained undetermined although assigning the typical geographic region of the species.

Varied localities of the same region
Sample with a single specimen, indicating two different localities on the labels, but both belonging to the same geographical region that is consistent with the common distribution of the species. In such case, the doubt is focused on the specific locality and not on the original geographical region. For example, the MZB 88-6304 sample comprises a single specimen of Buccinanops moniliferus (Kiener, 1834); on the label of the Serradell Collection it is indicated Rio La Plata and inside the specimen’s  aperture there is an additional piece of paper indicating Rio Janeiro. In this review, both localities were included with an interrogative point, however not involving the geographical region.

Mixed localities
Sample with several specimens pertaining to the same species and with two labels indicating different type localities; species that were found in both localities. This may be due to the grouping of specimens in a single sample that were identified initially in different samples. As in the previous case, in the review, the different typical localities are preserved and separated by a sign (+) and assigning them to a single geographic region. For example, the original sample MZB 88-6305 includes 12 specimens of Cyclope neritea (Linnaeus, 1758) and two labels; one specifies Barcelona and the other Cadiz.

Uncertain locality by segregation
When a single specimen of an original sample, indicating two or more localities belonging to the same geographical region, was segregated to a new sample for belonging to a different species, its location remains unclear. It was decided to indicate the two or more localities of the original sample with interrogation points. For example, from the original sample MZB 88-6158 with determination Nassa ambigua, with two localities Pineda and Vilassar, a specimen was separated into a new sample MZB 88-6158-B, as Nassarius pygmaeus (Lamrck, 1822) and the localities were indicated with interrogation points (Pineda? Vilassar?).