Revision of the lysianassoid genera Acidostoma and Shackletonia (Crustacea: Amphipoda: Acidostomatidae fam. nov.)
Author
Stoddart, H. E.
Author
Lowry, J. K.
text
Zootaxa
2012
2012-05-10
3307
1
1
34
https://biotaxa.org/Zootaxa/article/view/zootaxa.3307.1.1
journal article
10.11646/zootaxa.3307.1.1
1175-5326
5250488
Shackletonia robusta
K.H.
Barnard, 1931
(
Figs 23–25
)
Shackletonia robusta
K.H.
Barnard, 1931: 425
. ―K.H.
Barnard, 1932: 29
, fig. 3. ―J.L.
Barnard, 1958: 99
. ―
Thurston & Allen, 1969: 367
. ―
Arnaud, 1974: 592
. ―
Lowry & Bullock, 1976: 105
. ―
Barnard & Karaman, 1991: 529
. ―
De Broyer & Jazdzewski, 1993: 75
. ―
Wakabara
et al
., 1996: 355
(table I). ―
Gutt
et al
., 2000: 80
. ―
De Broyer
et al
., 2007: 115
.
FIGURE 23.
Shackletonia robusta
K.H. Barnard
, male, 22.4 mm, MV
J38209
, Prydz Bay, Antarctica.
FIGURE 24.
Shackletonia robusta
K.H. Barnard
, male, 22.4 mm, MV
J38209
, Prydz Bay, Antarctica. Scales represent 0.5 mm.
FIGURE 25.
Shackletonia robusta
K.H. Barnard
, male, 22.4 mm, MV
J38209
, Prydz Bay, Antarctica. Scales represent 1.0 mm.
Material examined.
1 male
, 22.4 mm,
MV
J38209
, off
Larsemann Hills
,
eastern Prydz Bay
,
Antarctica
,
68°54.88'S
76°37.03'E
,
667 m
, epibenthic sled,
18 February 1993
,
M. O'Loughlin
, stn AA93-158
. —
1 specimen
, AAD collection,
230 km
north of
Shackleton Ice Shelf
,
Bruce Rise
,
Australian Antarctic Territory
,
Southern Ocean
,
63°31'10"S
100°51'27"E
to
63°30'54"S
100°50'54"E
, 1266.79–1274.78 m, beam trawl,
29 December 2009
,
Australian Antarctic Division
, RSV
Aurora Australis
, stn
BR09
BTC02
.
Description.
Mandible
molar a setose subtriangular flap.
Maxilla 1
palp large, 2-articulate, with apical robust setae.
Maxilliped
inner plate well developed; outer plate without subapical notch.
Gnathopod 2
dactylus reaching corner of palm.
Pereopods 5 and 6
merus broader than long.
Epimeron 3
posteroventral corner produced into a spine.
Uropod 1
peduncle dorsolateral margin with more than 10 robust setae.
Uropod 2
peduncle dorsolateral margin not castellate, with elongate robust setae.
Uropod 3
reaching beyond the end of uropod 2; rami longer than peduncle, with plumose setae; outer ramus article 2 vestigial.
Telson
much longer than broad, deeply cleft (about 80%).
Distribution.
South
Shetland Island
,
South Georgia
; Bruce Rise and Prydz Bay,
Antarctica
;
230–1275 m
depth.