REVIEW OW THE SYSTEMATICS AND ECOLOGY OF OCEANIC SQUIDS
191
North Atlantic at 40"46'N 18"35'W and 25"ll'N 20'27'W.
From
Young's data the species lives a t between 0-300 m. The female
is 3.0 cm, the male 3.1 cm and the two larvae are each 0.8 cm in
mantle length. The male contained no spermatophores but Young
considered that the right ventral arm was hectocotylized.
B . Lycoteuthis
This genus contains a single species which ha8 been caught on a
number of occasions but is still rather poorly known from the ecological
point of view.
1. Lycoteuthis diadema (Chun, 1900)
Enoploteuthis diadem Chun. 1900
Lycoteuthis Jattae Pfeffer, 1900
Thuumatolampas diadema Chun, 1903b
Asthenoteuthion plunctonicum Pfeffer, 1912
? Lycoteuthis sp. A . Robson, 19248
? Lycoteuthis sp. Robson, 1924c
Leptodontoteuthis inermis Robson, 1924c
First recorded from the South Atlantic (Fig. 37), south of Africa
(Chun, 1900) it has since been taken off the Cape of Good Hope (Robson,
1926c), Natal (Robson, 1924a,c), in the western North Atlantic
(Voss, 195613, 1958, 1962d), south of Australia (Pfeffer, 1912) and on
the western coast of America (Pfeffer, 1900). It has been taken in
open nets fished between 3 000 m and the surface but as pointed out
by Voss (1962d) the records suggest that the species probably live
between about 500 m and the surface. The three larvae which have
been taken (Voss, 1958) were caught at 46-57 m.
No males have yet been recorded and the largest of the eight
females known has a mantle length of 8.3 cm (Voss, 1956b).
Voss (1958) described the juvenile stage a t a mantle length of
0.72-0.87 cm and pointed out a few differences between this and the
adul t .
The stomachs of three specimens contained fish remains, in one
case those of a myctophid, and Crustacea which possess light organs
(Voss, 1962d).
The species has been found in fish stomachs (Voss, 1956b) and from
a dolphin stomach (Pfeffer, 1900).
C . Nematolampis
Only the type specimens of the single species in this genus are
known.
1'
191
North Atlantic at 40"46'N 18"35'W and 25"ll'N 20'27'W.
From
Young's data the species lives a t between 0-300 m. The female
is 3.0 cm, the male 3.1 cm and the two larvae are each 0.8 cm in
mantle length. The male contained no spermatophores but Young
considered that the right ventral arm was hectocotylized.
B . Lycoteuthis
This genus contains a single species which ha8 been caught on a
number of occasions but is still rather poorly known from the ecological
point of view.
1. Lycoteuthis diadema (Chun, 1900)
Enoploteuthis diadem Chun. 1900
Lycoteuthis Jattae Pfeffer, 1900
Thuumatolampas diadema Chun, 1903b
Asthenoteuthion plunctonicum Pfeffer, 1912
? Lycoteuthis sp. A . Robson, 19248
? Lycoteuthis sp. Robson, 1924c
Leptodontoteuthis inermis Robson, 1924c
First recorded from the South Atlantic (Fig. 37), south of Africa
(Chun, 1900) it has since been taken off the Cape of Good Hope (Robson,
1926c), Natal (Robson, 1924a,c), in the western North Atlantic
(Voss, 195613, 1958, 1962d), south of Australia (Pfeffer, 1912) and on
the western coast of America (Pfeffer, 1900). It has been taken in
open nets fished between 3 000 m and the surface but as pointed out
by Voss (1962d) the records suggest that the species probably live
between about 500 m and the surface. The three larvae which have
been taken (Voss, 1958) were caught at 46-57 m.
No males have yet been recorded and the largest of the eight
females known has a mantle length of 8.3 cm (Voss, 1956b).
Voss (1958) described the juvenile stage a t a mantle length of
0.72-0.87 cm and pointed out a few differences between this and the
adul t .
The stomachs of three specimens contained fish remains, in one
case those of a myctophid, and Crustacea which possess light organs
(Voss, 1962d).
The species has been found in fish stomachs (Voss, 1956b) and from
a dolphin stomach (Pfeffer, 1900).
C . Nematolampis
Only the type specimens of the single species in this genus are
known.
1'