204
MALCOLM R. CLdRKE
1894c, 1899, 1900; Lozano y Rey, 1905; Chun, 1910a; Pfeffer, 1912;
Naef, 1923; Degner, 1925; Adam, 1942b; Morales, 1958), the eastern
North Atlantic (Chun, 1913; Joubin, 1924; Bouxin and Legendre, 1936;
Rees and Maul, 1956; Adam, 1960c), the South Atlantic (Adam, 1952,
1961, 1962) and the Pacific (Berry, 1963; Pearcy, 1965). The validity
of further records from the Kuril region (Akimushkin, 1954a, 1955a,
1.6
u 3.6 5.0
b0
cm
1.0
Fm. 41. Change i n form during growth of Chiroteuthia ueranyi after (from left to right)
Naef (1923, Fig. 191). Pfeffer (1912, Plate 46, Fig. 4, l), Adam (1962, Fig. 49) and
Pfeffer (1912, Plate 44). The three smallest are referable to the larval " species "
Dwatopais vermicduris. All from the ventral side. Mantle lengths (excluding the
" teil ") in cm are indicated.
1957; Beteshava and Akimushkin, 1955) cannot be assessed because a
satisfactory description was not given.
It has been caught in open nets fished a t 150 m (Degner, 1925)
and in nets fished to 2 130 m (Adam, 1961) but has been taken most
frequently at 300-500 m. Off Oregon an average of 0-5 per hour tow
was caught in open midwater trawls fished a t 200 m while only 0.1
were caught in samples taken at 500 m and 1000 m (Pearcy, 1965).