250 THE SCHIZOPODA. 



expansion decreases gradually to somewhat before the en d ; the terminal part is 

 curved inwards and tapers to the acute end. The median lobe is normal, termi- 

 nating in a somewhat flattened, rounded lobe; the lateral process (fig. 3e) 

 is rather robust at the base; considerably beyond the middle it is bent very 

 strongly, both inwards and considerably in the proximal direction, and at the 

 bending it has a very conspicuous, curved, acute dorsal (or outer) tooth and 

 sometimes still a smaller tooth or two small teeth (fig. 3f, p'*.). The auxiliary 

 lobe is long. The setiferous lobe is broad, with five setae from the triangularly 

 produced terminal part and about four setae distributed along the outer margin. 



Length of both sexes 10-14.5 mm. 



Type.- — A male from Sta. 46G5; 300 fms. to surface. 



Remarks. — E. dislinguenda resembles E. paragihha and allied species by 

 its slender body and rather small eyes, but it is easily distinguished by having 

 no protruding, acute lobe from first antennular joint, by the somewhat ear-like 

 keel at the outer angle of the second joint, and by the copulatory organs; the 

 reduced rostrum, the high keel on the third antennular joint, and the dorsal 

 process on tliird abdominal segment being compi'essed afford other yuXkX but 

 less conspicuous characters. 



Distribution. — The long list of localities shows that this species is common 

 in a large part of the area explored, viz. from Lat. 22|° N. to Lat. 125° S., while 

 it is wanting south of the last-named latitude, and besides it was not taken 

 in the southwestern part of the area, west of Long. 100° and south of the line. 

 Many of the specimens referred by Ortmann (1894) to E. mucronaia G. O. S. 

 belong to E. distingucnda. But I have not seen a specimen of this species from 

 any other area or ocean. The list shows that the species was several times taken 

 at the surface, but that the specimens in ciuestion were nearly all immature and 

 generally small. 



23. Euphausia lamelligera H. J. Hansen. 

 Plate S, figs. 4:i-4f; Plate 9, fig. la. 



1911. Euiihaiiniu lamclligira II. J. Hansen, Hull. Mus. Oc6:in. Monaco, no. 210, p. 32. 



Sta. 4588. Oct. 12, 1904. Lat. 19° 52' N., long. 106° 22' W. Surface. 1 young specimen. 



Sta. 4.592. Oct. 13, 1004. Lat. 18° 20' N., long, 103° 40' W. Surface. 2 specimens. 



Sta. 4605. Oct. 17, 1904. Lat. 12° 21' N., long. 92° 13' W. 300 fms. to surface. 4 specimens, 



Sta. 4611. Oct. 18, 1904. Lat. 10° 33' N., long. 88° 30' W. Surface. 27 specimens. 



Sta. 4613. Oct. 19, 1904. Lat. 9° 45' N., long. 86° 20' W. 300 fms. to surface. 1 specimen. 



Sta. 4615. Oct. 19, 1904. Lat. 9° 7' N., long. 85° 11' W. Surface. 20 specimens. 



St.a. 4619. Oct. 20, 1904. Lat. 7° 15' N., long. 82° 8' W. Surface. 30 specimens. 



Sta. 4G40. Nov. 6,1904. Lat. 0° 39.4' S., long, 88° 11' W. Surface. 1 specimen. 



Sta. 4648. Nov. 9,1904. Lat. 4° 43' S., long. 87° 7.5' W. Surface. 1 specimen. 



