REVIEW OF THE SYSTEMATICS AND ECOLOGY OF OCEANIC SQUIDS
209
7. Mastigoteuthis hjorti Chun, 1913
Known only from the type specimens taken at Michael Sars stations
near 36"N 40"W and 32"N 33"W and 36' 5"
43'68'W (Chun, 1913).
They were taken with 1 200 m and 3 000 m of wire out which possibly
meant that the nets were a t depths of 400-1 000m. The largest specimen
had a mantle length of 9.5 cm. The species is remarkable in having a
rhombic fin stretching the length of the body similar in form to that
of Thysanoteuthis.
8. Mastigoteuthis iseleni Macdonald and Clench, 1934
Only known from the type which was taken at 39' 04"
71'29'W
in the North Atlantic with an open net fished to about 600-800 m
(1 600 m of wire out). The mantle length is 6.2 cm.
9. Mastigoteuthis Zatipinna (Sasaki, 1916)
Idioteuthis latipinnu Sasaki, 1916
A single specimen was described from outside Okinose Bank, Sagami
Bay, Japan by Sasaki (1916, 1929a). It was caught at about 730 m,
has a mantle length of 23.8 cm and is the largest known specimen in the
genus.
10. Mastigoteuthis levimana Lbnnberg, 1896
This is known only from a single specimen taken a t 43"N 24' W
in the North Atlantic (Lonnberg, 1896b) which had been mutilated by
a dolphin. The mantle length including the hind end measures 6.0 cm.
1 1. Mastigoteuthis magna Joubin, 19 13
Another species known only from the type specimen, this was
caught at 31' 44" 42'39'W (Joubin, 1913a) with an open net fished to
3 465 m. It has a mantle length of 16.0 cm.
12. Mastigoteuthis schmidti Degner, 1925
The type was caught in the North Atlantic at 46' 30"
7"OO' W
(Degner, 1925) and a specimen from Madeira has been tentatively
referred to this species (Rees and Maul, 1956). The type was taken
with 2 700 m of wire out which probably represents a depth of capture
of about 1000 m. It is 4.6 cm and the Madeiran specimen is 10.7cm
in mantle length. The latter came from the stomach of Alepisaurus
ferox.
209
7. Mastigoteuthis hjorti Chun, 1913
Known only from the type specimens taken at Michael Sars stations
near 36"N 40"W and 32"N 33"W and 36' 5"
43'68'W (Chun, 1913).
They were taken with 1 200 m and 3 000 m of wire out which possibly
meant that the nets were a t depths of 400-1 000m. The largest specimen
had a mantle length of 9.5 cm. The species is remarkable in having a
rhombic fin stretching the length of the body similar in form to that
of Thysanoteuthis.
8. Mastigoteuthis iseleni Macdonald and Clench, 1934
Only known from the type which was taken at 39' 04"
71'29'W
in the North Atlantic with an open net fished to about 600-800 m
(1 600 m of wire out). The mantle length is 6.2 cm.
9. Mastigoteuthis Zatipinna (Sasaki, 1916)
Idioteuthis latipinnu Sasaki, 1916
A single specimen was described from outside Okinose Bank, Sagami
Bay, Japan by Sasaki (1916, 1929a). It was caught at about 730 m,
has a mantle length of 23.8 cm and is the largest known specimen in the
genus.
10. Mastigoteuthis levimana Lbnnberg, 1896
This is known only from a single specimen taken a t 43"N 24' W
in the North Atlantic (Lonnberg, 1896b) which had been mutilated by
a dolphin. The mantle length including the hind end measures 6.0 cm.
1 1. Mastigoteuthis magna Joubin, 19 13
Another species known only from the type specimen, this was
caught at 31' 44" 42'39'W (Joubin, 1913a) with an open net fished to
3 465 m. It has a mantle length of 16.0 cm.
12. Mastigoteuthis schmidti Degner, 1925
The type was caught in the North Atlantic at 46' 30"
7"OO' W
(Degner, 1925) and a specimen from Madeira has been tentatively
referred to this species (Rees and Maul, 1956). The type was taken
with 2 700 m of wire out which probably represents a depth of capture
of about 1000 m. It is 4.6 cm and the Madeiran specimen is 10.7cm
in mantle length. The latter came from the stomach of Alepisaurus
ferox.