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 4. Certain cases of segregation and grouping of samples.
Anexo 4. Algunos casos de segregación y agrupación de muestras.
The casuistry in this aspect is varied and frequently adding some change in the taxonomic determination of the samples specimens. The following examples are described below.
Sample MZB 88-6057
Containing two shells, there are four labels with different determinations. The
earliest were from the Rosals Collection (No 2084 and 2085), the first with the
specific determination of Nassa bourguignati Loc. And, the second,
Nassa poirieri Loc, both from Barcelona. A third latest label, of the
Museo de Biología de Barcelona, modifies the determination by assigning
the specimens to Nassa reticulata nitida Jfr., and attributing
them to number 2085 of the Rosals Collection. A latest typewritten label
preserves the last determination of the species, but attributes it to No 2084 of
the Rosals Collection. Obviously, the reviewer had gathered the two specimens
that Rosals separated, in a single sample considering they belonged to the same
species and the same locality. Yet it remained unclear when this grouping
occurred. The fact that the two latest labels are attributed to different
numbers of the Rosals Collection suggests that, a label was set for each sample
initially, modifying only the name of the species and, in a subsequent review
were grouped in a single sample, since they had the same specific determination
and both derived from Barcelona, preserving all the labels.
Sample MZB 88-6063
Which included 10 specimens determined as Nassa reticulata (L), the
label indicates that they belonged to the collections of Aguilar-Amat (unnumbered)
and Rosals (No. 462), without any original label, and from the Mediterranean.
Considering the ambiguity of the geographical source, the reviewer may have
grouped them in sight they pertained to the same species. The same happened with
sample MZB 88-6074 containing 21 specimens, where the latest label indicates
species Nassa gayi Kien of Southern America, from the Martorell and
Aguilar-Amat collections. There are label fragments of the Bofill collection
where it is not possible to identify the locality, and a label of the Museo
de Biología de Barcelona which indicated "Chile". Most likely, the specimens
of the species of the Martorell, Bofill and Aguilar-Amat Collections were
grouped into this single sample, since they derived from the same geographic
region.
Sample MZB 88-6052
Is the result of grouping the Nassarius corniculus (Olivi, 1792)
deriving from two localities, Barcelona and Cadaqués into a single lot, without
any indication about which are the specimens of each locality. Both labels of
the Rosals Collection corresponded to numbers 470 and 473.
Sample MZB 88-6708
There are three specimens determined as Nassa canaliculata Lam, but
containing three labels, one of the Serradell Collection (No. 1510), another of
the Martorell Collection, and a latest of the Museo de Biología de Barcelona.
As the two previous labels of the original samples indicated the same locality,
they were grouped into a single sample.
Samples MZB 88-6609 and MZB
88-6611
These two current accession numbers came from
the same sample, encoded as 765 for the Chia collection. Original labels were
not preserved, but on the labels of the Museo de Biología de Barcelona,
shared provenance is clearly identified. The original lot probably included two
varieties of the same species that were sorted into two samples once the Chia
collection reached the museum. Thus, the MZB 88-6609 sample contains specimens
of Nassa costulata Ren. var. ferussaci whereas specimens of
Nassa costulata Ren. var. cuvieri are found in the MZB 88-6611 lot.
Samples MZB 88-6856, MZB
88-6858 and MZB 88-6865
Presented exclusions, groupings and taxonomic evaluations. In sample MZB
88-6856, there are 20 specimens and three labels: one of Serradell Collection
No. 1499 (Nassa valliculata Locard), another from the Serradell
Collection as well, No. 1500 (Nassa ascanias Brug.) and a third latest
label of the Museo de Biología de Barcelona (Nassa incrassata elongata
B.D.D.) indicating as original samples those of Serradell Nos. 1498 and 1499.
Therefore, the MZB 88-6856 sample was formed from three different samples of the
Serradell Collection (numbers 1498, 1499 and 1500). However, in sample MZB
88-6858 with a specimen (Nassa incrassata varicosa B.D.D.) and a label
of the Museo de Biología de Barcelona, it is indicated that it derived
from the Serradell Collection No. 1498. Thus, this specimen was separated from
the others of the same sample of Serradell. On the other hand, the MZB 88-6865
sample included seven specimens (Nassa incrassata Müll.) with label of
the Museo de Biología de Barcelona indicating that they derived from
sample 1498 of the Serradell Collection. It is obvious that somebody had grouped,
subdivided and rearranged samples 1498, 1499 and 1500 of the Serradell
collection on evaluating that all the specimens belonged to the same species (considering
valliculata and ascanias as synonyms of incrassatus), and
they had to be grouped according to the 'variety' of the species; ignoring the
fact that the original localities were not the same (Barcelona for 1949 and
1500, and Vilanova i la Geltrú for 1948).
Furthermore, the original samples of the Serradell Collection 1498 and 1499 were subdivided and rearranged in many others, following the 'variety' criterion, as can be seen in the corresponding label of the Museo de Biología de Barcelona: sample MZB 88-6727 contains three specimens of (Nassa incrassata elongata B.D.D.), deriving from 1498 and 1499; the Serradell sample 1498 was subdivided into five more, the current samples MZB 88-6732 (19 specimens of Nassa incrassata Müll.), MZB 88-6744 (four specimens of Nassa incrassata minor B.D.D.), MZB 88-6761 (three specimens of Nassa incrassata fusca Mts.), MZB 88-6767 (five specimens of Nassa incrassata fascita Mts.) and MZB 88-6735 (one specimen of Nassa incrassata varicosa B.D.D.); and of the original sample of Serradell 1499, five specimens were assigned to the current MZB 88-6734 as Nassa incrassata varicose B.D.D.