EUPHAUSIACEA. 283 
furthermore it was taken at the Fiji Islands and in the North Pacific; Ort- 
mann’s specimen from the Hawaiian Islands belongs to this species, while his 
specimen from off Galera Point is too poor for determination.— The species has 
very rarely been taken at the surface. 
40. Stylocheiron maximum H. J. Hansen. 
1908. Stylocheiron maximum H. J. HANSEN, The Danish Ingolf-Exped., 3, 2, p. 92. 
1910. Stylocheiron maximum H. J. Hansen, Siboga-Exp., 37, p. 121, pl. 16, figs. 6a-6d. 
Sta. 4646. Noy. 8,1904. Lat. 4° 1.6’S., long. 89° 16.3’W. 300fms.tosurface. 1 specimen. 
Sta. 4679. Dec. 7, 1904. Lat. 17° 26.4’S., long. 86° 46.5’ W. 300 fms. to surface. 1 specimen. 
Sta. 4707. Dec. 29,1904. Lat. 12° 32.2’S., long. 97° 42’ W. 300 fms. to surface. 1 specimen. 
Sta. 4713. Jan. 1,1905. Lat. 5° 35.3’S., long. 92° 21.6’ W. 300 fms. to surface. 1 specimen. 
Sta. 4716. Jan. 2,1905. Lat. 2° 18.5'S., long. 90° 2.6’ W. 600 fms. to surface. 1 specimen. 
Sta. 4724. Jan.17,1905. Lat. 11° 13.4’S., long. 109° 39’ W. 300 fms. to surface. 2 specimens. 
Sta. 4742. Feb. 15,1905. Lat. 0° 3.4’ N., long. 117° 15.8’ W. 300 fms. to surface. 1 specimen. 
Remarks.— The material is somewhat poor in quality, most of the speci- 
mens being not well preserved and only two, both females, are adult. For this 
reason a representation of this large and fine species must be postponed. 
Distribution In the Atlantic S. maximum extends northwards to Lat. 
61° 49’ N., long. 14° 11’ W., West of the Feroes (“‘ Ingolf’’ Exp.), and it is not 
uncommon in the area explored by the Prince of Monaco. Finally it was taken 
at some few localities in the Indian Archipelago by the ‘‘Siboga.”’ 
LARVAL STAGES OF EUPHAUSIACEA. ° 
Plate 12. 
The collection contains a large number of larvae in various stages of develop- 
ment. But more than two thirds belong to the genus Euphausia and are not 
very interesting; a smaller number in the later stages of development can be 
named with certainty, but it is impossible to refer most of them to the forms to 
which they belong. Sars has given a very detailed account of the metamorphosis 
of his Euphausia pellucida, and though this species — according to his list of 
synonymy, his figures, and many of his specimens examined by me — comprises 
at least three allied species, and though it is impossible to decide whether the 
larvae described and figured by him as stages of H. pellucida in reality belong 
to a single or to two or three closely allied species, his figures and descriptions do 
give an excellent account of the development of animals of the krohnii- group. 
The time is still remote when it may be possible to give a full account of the 
metamorphosis of at least several species of the rich genus Euphausia, a task 
