EUPHAUSIACEA. 2S3 



furthermore it was taken at the Fiji Islands and in the North Pacific; Ort- 

 mann's specimen from the H awaiian Islands belongs to this species, while his 

 specimen from off Galera Point is too poor for determination. — The species has 

 verj' rarely been taken at the surface. 



40. Stylocheiron maximum H J Hansen-. 



1908. Slylocheiroii maximuin H. J. H.anskn, The Danish IngoU'-Exped., 3, 2, p. 92. 

 1910. Slylocliiiron nmxinium H. J. H-\.nskn, Siboga-Exp., 37, p. 121, pi. IG, figs. 6a-6d. 



Sla. 464(i. Nov. S, 1904. Lat. 4' 1.0' .S., long. 89° 16.,3' W. 300 fms. to surface. 1 spechneu. 



Sta. 4G79. Dec. 7, 1904. Lat. 17° 26.4' S., long. 86° 46.5' W. 300 fms. to svirface. 1 specimen. 



Sta. 4707. Dee. 29, 1904. Lat. 12° 32.2' S., long. 97° 42' \V. 300 fms. to surface. 1 specimen. 



Sta. 4713. .Jan. 1,190.'). Lat. .5° 35.3' S., long. 92° 21.6' \V. 3t)0 fms. to surface. 1 specimen. 



Sta. 4716. Jan, 2,190."). Lat. 2° 18.5' S., long. 90° 2.6' \V. 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' X., long. 117° 15.8' W. 300 fms. to surface. 1 specimen. 



Rvmark.'i. — The material is somewhat jionr in ([uality, most i>f the speci- 

 mens being not well preser\"ed and only two, l.ioth females, are adult. For this 

 reason a rejiresentation of this large and tine species must be postponed. 



Distrihidion. — In the .Vtlantic S. nutxiniiun extends northwards to Lat. 

 61° 49' N., long. 14° 11' W., West of the Faeroes (" 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 Archiijelago bv the "Siboga." 



LARVAL yTACIES OF EUPHAU.SIACEA. 



Plate 12. 



The collection contains a large number of lar\ae in various stages of develop- 

 ment. But more than two thirds l)elong to the genus Euphausia and are not 

 very interesting; a smaller number in the later stages of development can be 

 named with certainty, Init 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 EuphausUi pdlucida, antl tliough this species — according to his list of 

 synonymy, his figures, and many of his specimens examined by me — comprises 

 at least three aUied species, and though it is impossible to decide whether the 

 larvae described and figuretl by him as stages of E. pellucida in reality belong 

 to a single or to two or three closelj' allied species, his figures and descriptions do 

 give an excellent ticcount of the de\'elo]iment of animals of the Aw*/)/; //-group. 

 The time is still renioU^ when it may l)e possible^ to gi\e a full account of the 

 metamorphosis of ;it letist se\'eral species of the rich genus Euphausia, a task 



