202
MALCOLM R. CLARKE
genus is therefore valid. Doratopsiform stages will be examined after
adult forms have been considered (page 210).
A. Bigelowia
1. Bigelowia atlanticus Macdonald and Clench, 1934
A species only known from the type specimen taken at 37"N 67"12'W
in the western North Atlantic, with an open net fished to about 500700 m (1 500 m of wire out). The mantle length is 9.1 cm.
B. Chiroteuthis
1. Chiroteuthis f u m e h a (Berry, 1909)
This has been recorded once from near Kauai Island of the Hawaii
group (Berry, 1909a). It was caught in an open net fished at about
590-1 350 m (Berry, 1914a) and has a mantle length of 3.9 cm. The
bottom was coral sand and rock.
2. Chiroteuthis grimaldii Joubin, 1895
This species is only known from the type specimen taken off the
Azores a t 39"43'N 33"ZZ'W in a trawl fished to 1 445 m (Joubin, 1895b).
The mantle length is 3-9 cm (measured from the figure).
3. Chiroteuthis imperator Chun, 1910
This may later prove to be a synonym of C. picteti Joubin, 1894a
(Voss, 1963a). Rare, but well described, it has been recorded from
the Indian Ocean (Chun, 1910a; Massy, 1916b) (Fig. 40), Amboine in
the East Indies (Adam, 1954), Luzon in the Philippines (Voss, 1963a)
and Japan where it is seen frequently in Sagami Bay (Sasaki, 1916,
1920, 1929a). It does not appear to have been taken in a net fished to
less than 550 m (Massy, 1916b) or deeper than about 1 280 m (Sasaki,
1920). It is known to grow to a mantle length of 30.0 cm (Sasaki, 1929a).
Sasaki (1929a) found that the nidamental glands of two females with
mantle lengths of 22.0 cm and 25.0 cm measured respectively 1.5 x 0.6
cm and 2.6xl.l cm; such an expansion in the gland with a small
increase in body size suggests that maturity is just being reached at
this size.
4. Chiroteuthis lucertosa (Verrill, 1881)
Chiroteuthis Bonplandi Verrill, 1881c
Chiroteuthis Verunyi lucertosa Pfeffer, 1912
Although Pfeffer (1912) regarded this merely as an American variety
of C. veranyi, later authors have considered it t o be a distinct species.
MALCOLM R. CLARKE
genus is therefore valid. Doratopsiform stages will be examined after
adult forms have been considered (page 210).
A. Bigelowia
1. Bigelowia atlanticus Macdonald and Clench, 1934
A species only known from the type specimen taken at 37"N 67"12'W
in the western North Atlantic, with an open net fished to about 500700 m (1 500 m of wire out). The mantle length is 9.1 cm.
B. Chiroteuthis
1. Chiroteuthis f u m e h a (Berry, 1909)
This has been recorded once from near Kauai Island of the Hawaii
group (Berry, 1909a). It was caught in an open net fished at about
590-1 350 m (Berry, 1914a) and has a mantle length of 3.9 cm. The
bottom was coral sand and rock.
2. Chiroteuthis grimaldii Joubin, 1895
This species is only known from the type specimen taken off the
Azores a t 39"43'N 33"ZZ'W in a trawl fished to 1 445 m (Joubin, 1895b).
The mantle length is 3-9 cm (measured from the figure).
3. Chiroteuthis imperator Chun, 1910
This may later prove to be a synonym of C. picteti Joubin, 1894a
(Voss, 1963a). Rare, but well described, it has been recorded from
the Indian Ocean (Chun, 1910a; Massy, 1916b) (Fig. 40), Amboine in
the East Indies (Adam, 1954), Luzon in the Philippines (Voss, 1963a)
and Japan where it is seen frequently in Sagami Bay (Sasaki, 1916,
1920, 1929a). It does not appear to have been taken in a net fished to
less than 550 m (Massy, 1916b) or deeper than about 1 280 m (Sasaki,
1920). It is known to grow to a mantle length of 30.0 cm (Sasaki, 1929a).
Sasaki (1929a) found that the nidamental glands of two females with
mantle lengths of 22.0 cm and 25.0 cm measured respectively 1.5 x 0.6
cm and 2.6xl.l cm; such an expansion in the gland with a small
increase in body size suggests that maturity is just being reached at
this size.
4. Chiroteuthis lucertosa (Verrill, 1881)
Chiroteuthis Bonplandi Verrill, 1881c
Chiroteuthis Verunyi lucertosa Pfeffer, 1912
Although Pfeffer (1912) regarded this merely as an American variety
of C. veranyi, later authors have considered it t o be a distinct species.