Typhlotanais greenwichensis Shiino, 1970

Błażewicz-Paszkowycz, Magdalena, 2007, Figure 6. Typhlotanais Compactus, Female A In Family Nototanaidae Sieg, 1976 And Typhlotanaidae Sieg, 1984, Zootaxa 1598, pp. 1-141 : 107

? 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 .

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.

Figures

FIGURE 61.?Typhlotanais greenwichensis Shiino, 1970, female. A) Antennule; B) Antenna; C) Cheliped; D) Pleopod; E) Uropod. Scale = 0.1 mm.