ETTHAUSIA PSEUDOGIBRA. 247 



Lat. 15° 5.3' S., long. 99° 19' W. 300 fms. to surface. 17 specimens. 

 Lat. 12° 32.2' S., long. 97° 42' W. 300 fms. to surface. 2 specimens. 

 I.at. 10° 15.2' S., long. 95° 40.8' W. 300 fms. to surface. 5 specimens. 

 Lat. 8° 7.5' S., long. 104° 10.5' W. 300 fms. to surface. 1 specimen. 

 Lat. 9° 31' S., long. 106° 30.5' W. 300 fms. to surface. 8 specimens. 

 Lat. 15° 7' S., long. 117° 1.2' W. 300 fms. to fiin-face. 1 specimen. 

 Lat. 9° 2.1' S., long. 123° 20.1' W. 300 fms. to surface. 2 specimens. 

 Lat. 0° 3.4' N., long. 117° 15.8' W. 300 fms. to surface. 1 specimen. 



One of the largest specimens, a female, measures 17 mm., a very small 

 adult male is scarcely 12 mm. long, but the most common size is 15-15.5 mm. 



Distribution. — This species has been established on a few specimens taken 

 in the Indian .Irchipelago, at Lat. 0° 17.6' S., long. 129° 14.5' E. The Copen- 

 hagen Museum possesses males from two localities, viz. Lat. 13° S., long. 103° 20' 

 E. (Capt. Andrea) and Lat. 34° 30' S., long. 27° 40' E. (Capt. Hartmann), the 

 latter being in the most western part of the Indian Ocean, East of Port Elizabeth. 

 The list above shows that the species has been taken ten times in a transverse 

 belt about between the line and Lat. 19° S. in the area explored by Agassiz 

 1904-1905, while it was not met with in the larger northern and smaller southern 

 part. Furthermore the list seems to show that the species at least as a rule does 

 not live at the surface, but the specimens in the Copenhagen Museum have 

 certainly been taken near the surface and probably during night. 



21. Euphausia pseudogibba Ortmann. 



1893. Euphausia pseudogibba Ortmann, Ergebn. der Plankton-Exped., 2, G., b., p. 12, taf. I, fig. 6. 

 1910. Euphausia pseudogibba H. J. Hansen, Siboga-Exp., 37, p. 97; pi. 14, figs. 4a-4e. 



Sta. 4728. Jan. 19, 1905. Lat. 13° 47.5' S., long. 114° 21.6' W. 300 fms. to surface. 1 specimen. 

 Sta. 4732. Jan. 21, 1905. Lat. 16° 32.5' S., long. 119° 59' W. 300 fms. to surface. 1 specimen. 



I have nothing to add to the description in the "Siboga" paper. 



Distribution. — Only the two specimens recorded from the Pacific are known 

 hitherto; Ortmann's specimens from the Hawaiian Islands referred (1905) to 

 E. pseudogibba belong to E. hemigibba H. J. H. The Copenhagen Museum and 

 the Monaco collection contain numerous specimens from several localities from 

 the eastern warmer temperate and tropical Atlantic North of the line; further- 

 more I have seen specimens from the Bay of Bengal ("Galathea" Exp.) and 

 from Lat. 11° 16' S., long. 103° 50' E. (Capt. Andrea).— The specimens from 

 twelve locahties in all in the Copenhagen Museum are nearly all males and 

 have certainly been taken at the surface during the night. 



(The fourth .species of the gibba-group sens, strict., E. hemigibba H. J. H. 

 (see the "Siboga" paper) is very common in the Atlantic from Lat. 42° N. to 

 southwest of the Cape of Good Hope, and in the Indian Ocean from Port Eliza- 



