MUSEUM OF COMPARATIVE ZOOLOGY. 103 



Euphausia gibboides Ortmann. 



Decap. u. Schizop. Plankton Exp. 1893, p. 12, PI. I. fig. 5. 



Stations of the " Albatross " : — 



Hyd. 2627. Surface to 1,770 fathoms. (Between Cape San Francisco and 



Galapagos.) 

 Ilyd. 2628. Surface to 200 fathoms. (Between Cape San Francisco and 



Galapagos, about 250 miles from the Galapagos.) 

 " Survey " station (between San Francisco and the Sandwich Islands) : — 



540. Surface to 300 fathoms. Lat. 35° 19' 30" N. ; Long. 125° 21' 30" W. 

 Geographical Distribution. This species was obtained by the "Plankton 



Expedition " in the tropical part of the Atlantic, between and 500 meters. 



Euphausia gracilis Dana. 



G. 0. Sars, Challenger Schizopoda, 1885, p. 89, PI. XV. figs. 12-23. 

 Ortmann, Decap. u. Schiz. Plankton Exp. 1893, p. 13. 



Stations of the " Albatross " : — 



Hyd. 2628. Surface to 200 fathoms. (Between Cape San Francisco and 

 Galapagos, about 250 miles from the Galapagos.) 

 3409. Surface. (Bindloe I., Galapagos.) 

 3412. Surface. (Wenman I., Galapagos ) 

 Geographical Distribution. Central Atlantic; Tropical Pacific; Austra- 

 lian seas ; Celebes Sea. Surface to about 1,000 meters. 



Nematoscelis megalops G. O. Sars. 



G. 0. Sars, Cliall. Schiz. 1885, p. 127, PL XXIII. figs. 5-10. 

 Orlmann, Plankton Exp., 1893, p. 15. 



" Survey " stations (between San Francisco and the Sandwich Islands) : — 

 •540. Surface to 300 fathoms. Lat. 35° 19' 30" N. ; Long. 125° 21' 30" W. 



541. Surface to 300 fathoms. Lat. 35° 25' 30" N. ; Long. 125° 9' 30" W. 

 Geographical Distribution. North Atlantic ; Greenland, Nova Scotia, 



British coasts ; Southern subtropical Atlantic. 



Nematoscelis microps G. 0. Sars. 



G. 0. Sars, Chall. Schiz. 1885, p. 131, PI. XXV. figs. 1-4. 

 Ortmann, Plankton Exp. 1893, p. 16. 



The identification of this species is somewhat doubtful, since in none of the 

 specimens are the elongated legs preserved. 



