New littoral, shelf, and bathyal Paratanaidae (Crustacea: Peracarida: Tanaidacea) from New Zealand, with descriptions of three new genera
Author
BIRD, GRAHAM J.
Author
BAMBER, ROGER N.
text
Zootaxa
2013
2013-06-17
3676
1
1
71
http://dx.doi.org/10.11646/zootaxa.3676.1.1
journal article
10.11646/zootaxa.3676.1.1
11755334
5597797
7AB2D8F5-62F2-46D1-BDE4-BF91D6513797
Subfamily
Paratanaidinae
Lang, 1949
Larsen &
Heard
(2001)
: 3.
Diagnosis
[expanded from Larsen &
Heard
op. cit
.):
Females
: with
pleon
epimera with or without pappose setae.
Antennule
and
antenna
setae smooth [not serrulate/setulate]; antenna article-2 inferior margin with at most a thorn-
like apophysis.
Epistome
not well-developed.
Cheliped
merus inferior margin as long as or longer than that of carpus; propodus medial comb of relatively few, short spines.
Pereopods 2–3
carpus with three distal spines.
Males
highly dimorphic.
Composition
(
NZ
genera in bold):
Acallocheirus
gen. nov.
,
Aparatanais
gen. nov.
,
Atemtanais
Bird, 2011
;
Paratanais
Dana, 1852
;
Penteparatanais
gen. nov.
;
Triparatanais
Bamber & Chatterjee, 2010
;
Xeplenois
Bamber, 2005
.
Possible inclusion:
Metatanais
Shiino, 1952
(
unpublished record from Kermadec Islands: G. Bird).
Remarks.
The subfamily
Paratanaidinae
is generally considered a well-defined taxon, supported by phylogenetic analyses (
Larsen & Wilson 2002
;
Błażewicz-Paszkowycz & Poore 2008
) but the
Paratanaidae
still has some outstanding issues to be resolved (
Bird & Larsen 2009
), especially its relationships to apparent sister taxa such as the
Nototanaidae
Sieg, 1976
and
Typhlotanaidae
Sieg, 1984
and the composition of the subfamily
Bathytanaidinae
Larsen & Heard, 2001
. Pending an ongoing analysis of conflicting genera in the
Paratanaidinae
/
Bathytanaidinae
(Błażewicz-Paszkowycz & Bamber, in press),
Pseudobathytanais
(specifically
P. shtockmani
)
is here discussed as if it were a member of the
Paratanaidinae
. In the Bird & Larsen phylogeny
Pseudobathytanais
was effectively a paratanaidin-bathytanaidin chimaera and hence disruptive to the subfamilial pattern. Similarly, the possible linkage of
Metatanais
to the
Paratanaidae
by Bird & Larsen (
op. cit
.) is maintained here although it remains strictly
incertae cedis
.