The Lower Pliocene marine gastropods of Santa Maria Island, Azores: Taxonomy and palaeobiogeographic implications
Author
Sacchetti, Claudia
0000-0002-3225-3139
claudiasacc@icloud.com
Author
Landau, Bernard
0000-0002-7768-8494
bernardmlandau@gmail.com
Author
Ávila, Sérgio P.
0000-0002-3225-3139
claudiasacc@icloud.com
text
Zootaxa
2023
2023-05-24
5295
1
1
150
http://dx.doi.org/10.11646/zootaxa.5295.1.1
journal article
53396
10.11646/zootaxa.5295.1.1
82286fdc-a858-447c-9980-da2e8985d19c
1175-5326
7965273
F3A52660-70B8-439F-A7A0-F45ADC975EA5
Tritia
aff.
striatula striatula
(
Eichwald, 1829
)
*
Buccinum
(
Nassa
)
Doderleini
Mayer
, in Bronn in
Reiss 1862: 26
.
Buccinum doderleini
Mayer
—
Mayer 1864: 75
.
Type
material.
Single
specimen, dimensions not given,
Pinheiros
, Santa Maria
Island
,
Azores
; whereabouts unknown (
Beu 2017:165
)
.
Original description.
“
Ein wohl-erhaltenes Exemplar, wovon jedoch das Innere der M̧ndung nicht zu enthl̂ssen ist. Es ist ¾" lang, mit etwas bauchigen Umgängen und vertiefter Naht; der letzte Umgang genau von halber Länge des Ganzen; die innere Lippe ḑnn, aber
breit
̧ber den Bauch des vorletzten Umgangs heŗber und bis gegen die Naht zurück-reichend; die äussere Lippe schief, wulstig; ein früherer Lippen-Wulst liegt um ⅔ Umgänge weiter zuŗck und wirkt mit den Bauch etwas mehr abzuplatten. Herr Mayer, welcher diese Art schon fŗher aufgestellt, kennt sie aus dem Helvétien von Turin
[
A
well-preserved specimen, from which, however, the matrix inside the aperture cannot be removed. It is ¾" [inches?] long, with somewhat bulbous whorls and deepened suture; the last whorl of exactly half the length of the shell; the inner lip callus thin, but broadly expanded over the venter of the penultimate whorl and reaching the suture; the outer lip crooked, bulging; an earlier lip bulge is ⅔ [of the whorl] further back and has a slightly flattening effect on the venter. Mr. Mayer, who described this species before, knows it from the Helvétien of Turin.]” (Bronn in
Reiss 1862: 26
).
Discussion.
Bronn in
Reiss (1862: 26)
erected the taxon
Buccinum
(
Nassa
)
Doderleini
based on a specimen from Turin,
Italy
. The shell was apparently sent to Mayer and the taxon attributed to him by those authors.
Mayer (1864: 75-76)
commented that he had not received the specimen back a second time and could therefore offer neither a diagnosis nor figure of the species. He went on to say that “
The fossil remains of Turin, to which I have previously given the name, would most likely after more precise comparison, represent a somewhat shorter, almost entirely smooth variety of
B. Hoernesi
(
B. semistriatum
Hoern.
, non Broc.). The specimen from Santa Maria, however, should form a species of its own because, according to Bronn, its columella callus expands, which is not the case with
B. Hoernesi
”. With no further specimens that fit this description, we cannot comment further. Today, these European nassariids are assigned to the genus
Tritia
Risso, 1826
.
Distribution.
Lower Pliocene: Atlantic, Santa Maria Island,
Azores
(Mayer, in Bronn in
Reiss 1862
;
Mayer 1864
).