230
MALCOLM R. OLARKE
3. Teuthowenia elongata Sasaki, 1929
Having a very elongate body but otherwise being typical of
Teuthowenia this has only been recorded off Misaki, Japan (Sasaki,
1929a). The type has a mantle length of 1.6 cm.
4. Teuthowenia tagoi Sasaki, 1929
A species very close to the last this has only been recorded from
Enoura, Japan, and the type has a mantle length of 3.2 cm (Sasaki,
1929a).
N. Toxeuma
Although members of the genus have the larval features of the head
described for Taonidiurn and Teuthowenia the body is very elongated
and sharply pointed.
1. Toxeuma belone Chun, 1906
Cyanchiidarum Chun, 1903c
This species has been recorded from l0"S'S 97'14'E in the Indian
Ocean (Chun, 1910a) and from four stations in the North Atlantic
(Chun, 1913). It has been taken in open nets fished to a maximum of
2 400 m (vertical) and to less than 600 m (1 200 m wire out) (Chun,
1910a, 1913). The largest recorded has a mantle length (i.e. gladius
length) of 7.1 cm.
0. Megalocranchia
The species of this genus have more adult features than the genera
discussed above. They have sessile eyes which are sometimes very
large, the rostrum of the haad is short, the arms are a t least equal in
length to the rest of the head, the body is elongated and pointed and
the fins have a long fusion with the body (Fig. 49). Very few specimens
referred to this genus have been sexed or had comment made on their
maturity so that many of them are probably immature.
1. Megalocranchia abyssicola (Goodrich, 1896)
Taonius abyssicola Goodrich, 1896
Desmoteuthis abyssicola Pfeffer, 1900
This species has been recorded from the Laccadive Sea (Goodrich,
1896). It has been taken in open nets fished to 1 660 m and 2 500 m.
The largest specimen has a mantle length of 7.6 cm.
MALCOLM R. OLARKE
3. Teuthowenia elongata Sasaki, 1929
Having a very elongate body but otherwise being typical of
Teuthowenia this has only been recorded off Misaki, Japan (Sasaki,
1929a). The type has a mantle length of 1.6 cm.
4. Teuthowenia tagoi Sasaki, 1929
A species very close to the last this has only been recorded from
Enoura, Japan, and the type has a mantle length of 3.2 cm (Sasaki,
1929a).
N. Toxeuma
Although members of the genus have the larval features of the head
described for Taonidiurn and Teuthowenia the body is very elongated
and sharply pointed.
1. Toxeuma belone Chun, 1906
Cyanchiidarum Chun, 1903c
This species has been recorded from l0"S'S 97'14'E in the Indian
Ocean (Chun, 1910a) and from four stations in the North Atlantic
(Chun, 1913). It has been taken in open nets fished to a maximum of
2 400 m (vertical) and to less than 600 m (1 200 m wire out) (Chun,
1910a, 1913). The largest recorded has a mantle length (i.e. gladius
length) of 7.1 cm.
0. Megalocranchia
The species of this genus have more adult features than the genera
discussed above. They have sessile eyes which are sometimes very
large, the rostrum of the haad is short, the arms are a t least equal in
length to the rest of the head, the body is elongated and pointed and
the fins have a long fusion with the body (Fig. 49). Very few specimens
referred to this genus have been sexed or had comment made on their
maturity so that many of them are probably immature.
1. Megalocranchia abyssicola (Goodrich, 1896)
Taonius abyssicola Goodrich, 1896
Desmoteuthis abyssicola Pfeffer, 1900
This species has been recorded from the Laccadive Sea (Goodrich,
1896). It has been taken in open nets fished to 1 660 m and 2 500 m.
The largest specimen has a mantle length of 7.6 cm.