Taxonomic revision of Brasiloniscus (Oniscidea, Pudeoniscidae) with description of a new species
Author
Cardoso, Giovanna Monticelli
Author
Campos-Filho, Ivanklin Soares
Author
Araujo, Paula Beatriz
text
European Journal of Taxonomy
2018
2018-05-08
434
1
16
journal article
30014
10.5852/ejt.2018.434
72e05018-198f-4241-81da-c1d47d9ba394
1255007
Genus
Brasiloniscus
gen. nov.
urn:lsid:zoobank.org:act:9BFCE119-2473-4F76-A071-56FB5259350A
Brasiloniscus
Lemos de
Castro, 1973
: 3
. [unavailable name]
Brasiloniscus
–
Leistikow & Wägele 1999
: 42
. —
Schmalfuss 2003
: 57
. —
Schmidt 2003
:79
. —
Schmidt & Leistikow 2004
: 17
. —
Campos-Filho
et al
. 2017c
: 70
.
Braziloniscus
[sic] –
Souza-Kury 1998
: 665 [catalogue].
Type species
Brasiloniscus maculatus
(Lemos de
Castro, 1973
)
, by present designation.
Diagnosis
Exoantennal conglobation; pereonite 1 with dorsal v-shaped median depression on anterior portion, epimeron with schisma and dorsolateral furrow to fit antennae during conglobation; pereonites 1–3 epimera with ventral lobes slightly developed; pleon outline continuous with that of pereonite 7, neopleurae 3–5 well developed and rectangular; telson triangular, proximal portion wider than distal one; antenna partially covering eyes during conglobation, flagellum of three articles, second and third divided by slender suture, sometimes inconspicuous; uropod protopod subrectangular, exopod inserted on outer distal groove, distally; pleopod exopods with respiratory areas
Atracheodillo
-
type
.
Remarks
The characters used by Lemos de
Castro (1973)
to define the genus, such as cephalon with large frontal shield, pereonite 1 epimeron with well-developed dorsolateral furrow, pereonites 2 and 3 epimera with ventral lobes, and neopleurae 3–5 with distal portion not narrowed, are in fact characteristics observed at the family level, since these are also present in
Pudeoniscus
.
The genus
Brasiloniscus
gen. nov.
differs from
Pudeoniscus
in having the pereonite 1 epimeron with lateral schisma and ventral lobe well developed, cephalon with frontal shield larger and antennal flagellum with articles subequal in length.