Five new species and two records of Triphorinae (Caenogastropoda, Triphoridae) from Brazil
Author
Fernandes, MaurĂcio R.
Author
Pimenta, Alexandre D.
text
Zootaxa
2015
4012
3
493
513
journal article
10.11646/zootaxa.4012.3.5
4a56275a-7513-4d85-8762-20d379c0c300
1175-5326
241558
3AAEBA6B-4914-4524-AD2B-5436AEB05AC7
Nanaphora
Laseron, 1958
Type
species.
Nanaphora torquesa
Laseron, 1958
; original designation. Recent,
Australia
.
Diagnosis.
Small or minute shells, bottle-shaped, and medially inflated, but restricted at base; paucispiral or multispiral protoconch; in the latter, embryonic shell reticulated or with rounded/cruciform granules; larval shell with one or two spiral cords; teleoconch with median spiral cord emerging later; suture barely distinct (based on
Laseron 1958
and
Marshall
1983
).
Remarks.
The genus has up to now 13 species worldwide (
Bouchet & Rosenberg 2014b
), none in the western Atlantic; however, the species previously assigned to
Cheirodonta
in the western Atlantic actually belong to
Nanaphora
(see remarks of
Nanaphora verbernei
comb. nov.
).
The genus
Opimaphora
Laseron, 1958
is likely a junior synonym of
Nanaphora
(
Marshall
1983
)
, as
Laseron (1958)
distinguished them by
Nanaphora
having a paucispiral protoconch and
Opimaphora
a multispiral protoconch, however this is not a valid feature for distinction between genera (
Bouchet 1990
).
Laseron (1958)
considered both genera in the extremity of the short and inflated shells of
Triphoridae
.