Figure 6. Typhlotanais Compactus, Female A In Family Nototanaidae Sieg, 1976 And Typhlotanaidae Sieg, 1984
Author
Błażewicz-Paszkowycz, Magdalena
text
Zootaxa
2007
2007-09-28
1598
1
141
http://dx.doi.org/10.5281/zenodo.178692
journal article
10.5281/zenodo.178692
11755334
7604A52C-F935-459C-91DD-F7C7AD9F2CC6
?
Typhlotanais greenwichensis
Shiino, 1970
(
Fig. 61
)
Material examined:
one female
, two mancae, (
K 41392
), ANT
XXII-2
, PS 61/46-7, 60°38.35'–
60°38.12'S
, 53°57.36'–
53°57.49'W
, depth 2893.2–
2893.2 m
,
30 Jan 2002
;
one female
, (
K 41394
), ANT
XXII-2
, PS 61/ 129-7,
59°52.41'S
,
59°57.69'W
, depth 3601.0 m, LBC,
23 Feb 2002
;
one female
, (
K 41397
), ANT
XXII-3
,
74- 6
,
71
°18.35'–
71°18.28'S
, 13°57.71'–
13°57.31'W
, depth
1030–1040 m
,
20 Feb 2005
;
one female
, (
K 41395
), ANT
XXII-3
, PS 67/151-7-E, 61°45.52'–
61°45.42'S
, 47°7.68'–
47°8.04'W
, depth 1182.0–1185.0 m,
21 Mar 2005
.
FIGURE 61.
?
Typhlotanais greenwichensis
Shiino, 1970
, female. A) Antennule; B) Antenna; C) Cheliped; D) Pleopod; E) Uropod. Scale = 0.1 mm.
Distribution:
West Antarctic, vicinity of the
Falkland Islands
, Drake Passage, Eastern Weddell Sea at depths of
1030–3601 m
.
Remarks:
The specimens found deeper than
1030 m
in the ANDEEP samples were very closely similar to those occurring in shallow waters, although they had a more slender antennule, chelae and uropods (
Fig. 61
). In such circumstances it is not clear if there is one eurybathic species exhibiting the phenomenon of polar emergence or whether there are two (shallow- and deep-water) cryptic or sibling species.