230 THE SCHIZOPODA. 



EUPHAUSIA Dana (1852). 



Some statements on thq copulatory organs of the male first pleopods in 

 this genus may be given here. The spine-shaped process is wanting (yet I 

 found this process developed in the normal way in one of the specimens exam- 

 ined of E. lucens H. J. H.); the terminal and the proximal processes are well 

 developed. The median lobe is, as in Thysanopoda, separated from the inner 

 lobe and has the lateral process strong and inserted at a considerable distance 

 from its base, but it has generally no additional process, though this process 

 is present as a small spine in E. mucronata G. O. S. and as a mere rudiment in 

 E. gibboides Ortm. The auxiliary lobe is well developed, oblong; the setiferous 

 lobe is normal, with the pouch on the posterior surface very conspicuous. 



The genus comprises twenty-seven species, fourteen of which are represented 

 in the material from the East Pacific. These species belong to tliree of the four 

 groups into which I divide the genus. 



Group a. Species with two pairs of lateral denticles on the carapace. No 

 dorsal process on third to fifth abdominal segment. 



12. Euphausia eximia H. J. Hansen. 

 Plate 7, figs. 2a-2g. 



1911. Euphausia eximia H. J. Hansen, Bull. Mus. Oc6an. Monaco, No. 210, p. 23. 



Sta. 4580. Oct. 10, 1904. Lat. 24° 55' N., long. 112° 45' W. 300 fms. to surface. 5 specimens. 



Sta. 4598. Oct. 15, 1904. Lat. 15°5S' N., long. 98° 13' W. 300 fms. to surface. 2 specimens. 



Sta. 4605. Oct. 17, 1904. Lat. 12° 21' N., long. 92° 13' W. 300 fms. to surface. 2 young, specimens. 



Sta. 4611. Oct. 18, 1904. Lat. 10° 33' N., long. 88° 30' W. Surface. 6 specimens. 



Sta. 4615. Oct. 19, 1904. Lat.9°7'N.,long.85° ll'W. Surface. 5 specimens (1 large, 3 quite small). 



Sta. 4619. Oct. 20, 1904. Lat. 7° 15' N., long. 82° 8' W. Surface. 9 specimens (1 large, S small). 



Sta. 4644. Nov. 7, 1904. Lat. 2° 13.3' S., long. 89° 42.2' W. Surface. 29 specimens (several of 



which adult). 



Sta. 4649. Nov. 10, 1904. Lat. 5° 17' S., long. 85° 19.5' W. 300 fms. to surface. 2 specimens. 



Sta. 4650. Nov. 10, 1904. Lat. 5° 22' S., long. 84° 39' W. 300 fms. to surface. 14 specimens. 



f Surface. 74 specimens. 



Sta. 4652. Nov. 11, 1904. Lat. 5° 44.7' S., long. 82° 39.5' W. J ^^^ ["^^- *" ^"'"f'^'^^- ^^ specimens. 



200 fms. to surface. 45 specimens. 



400 fms. to surface. 45 specimens. 



Sta. 4655. Nov. 12, 1904. Lat. 5° 57.5' S., long. 80° 50' W. 400 fms. to surface. 18 specimens. 



Sta. 4657. Nov. 13, 1904. Lat. 7° 12.5' S., long. 84° 9' W. ] ^^^'t"^' / ^P''^™^"- 



( 300 fms. to surface. 42 specimens. 



Sta. 4659. Nov. 14, 1904. Lat. 8° 54.5' S., long. 86° 5.5' W. \ ^^^T^' 7 «P««"««'''^- 



( 300 fms. to surface. 80 specimens. 



Sta. 4661. Nov. 15, 1904. Lat. 10° 17' S., long. 88° 2' W. 300 fms. to surface. 19 specimens. 



Sta. 4663. Nov. 16, 1904. Lat. 11° 20.3' S., long. 88° 55.2' W. 300 fms. to surface. 5 specimens. 



Sta. 4664. Nov. 17, 1904. Lat. 11° 30.3' S., long. 87° 19' W. 300 fms. to surface. 10 specimens. 



Sta. 4665. Nov. 17, 1904. Lat. 11° 45' S., long. S6°5.2' W. \ '^"f^^''''- ^^ ^V<^f'^<^^^- 



( 300 fms. to surface. 46 specimens. 



