338
THE BIOLOGY 03 EUPHAUSIIDS
probable concentrations of species in different sea areas of the Atlantic.
Brinton, however, has a sufficiently large amount of more or less uniform
data on the distribution of Pacific species and so has been able to do
this. Reference should be made to the maps in Brinton (1962a) for
detailed pictures of the distribution of any one species in the Pacific
because only the broad features of the distributions have been presented
in the series of maps in Chapter 3.
FIG. 1%. A section extending southwards from the Bering Straits to show tho approximate vertical and hrmzontal distribution of the North Pacific sprcies.
North Pacific species, north of about 40"N
Resident species
Thysanopoda acutifrons; Euphausia paci$ca; Tessarabrachion
oculatum; Thysanoessa spinifera, T . longipes, T . inspinata, T .
inermis, T . raschii.
Southerly guests, area south of the Aleutians
maximum.
Southerly guests in southern regions only
Thysanoessa gregaria; Nematoscelis dificilis; Nematobrachion
jlexipes; Stylocheiron elongatum, 8. longicorne.
Of the eight resident species in the North Pacific only Euphausia
paci$ca, Thysanoessa spinifera, T . longipes, T . inermis, and T . raschii
Bentheuphausia amblyops; Thysanopoda cornufa; Stylocheiron
THE BIOLOGY 03 EUPHAUSIIDS
probable concentrations of species in different sea areas of the Atlantic.
Brinton, however, has a sufficiently large amount of more or less uniform
data on the distribution of Pacific species and so has been able to do
this. Reference should be made to the maps in Brinton (1962a) for
detailed pictures of the distribution of any one species in the Pacific
because only the broad features of the distributions have been presented
in the series of maps in Chapter 3.
FIG. 1%. A section extending southwards from the Bering Straits to show tho approximate vertical and hrmzontal distribution of the North Pacific sprcies.
North Pacific species, north of about 40"N
Resident species
Thysanopoda acutifrons; Euphausia paci$ca; Tessarabrachion
oculatum; Thysanoessa spinifera, T . longipes, T . inspinata, T .
inermis, T . raschii.
Southerly guests, area south of the Aleutians
maximum.
Southerly guests in southern regions only
Thysanoessa gregaria; Nematoscelis dificilis; Nematobrachion
jlexipes; Stylocheiron elongatum, 8. longicorne.
Of the eight resident species in the North Pacific only Euphausia
paci$ca, Thysanoessa spinifera, T . longipes, T . inermis, and T . raschii
Bentheuphausia amblyops; Thysanopoda cornufa; Stylocheiron