A TAX0N0M1C STUDY ON PYROSOMA METCALF AND HOPKINS. 245 



D. 5331, Hermana Menor Island, off western Luzon; Nov. 22, 1908; 

 178 fathoms; surface temperature 80° F.; surface density 1.02422; 

 Cat, No. 6491 U.S.N.M. 



D. 5366, Escareo Light, Batangas Bay, Luzon; Feb. 22, 1909: 

 240 fathoms, surface temperature 79° F. ; one specimen, Cat. No. 6508 

 U.S.N.M. 



D. 5409, Capitancillo Island Light, off northern Cebu Island; 

 March 18, 1909; 189 fathoms; surface temperature 80° F. ; five 

 specimens, Cat. No. 6419 U.S.N.M. 



D. 5410, Bagacay Point Light, between Cebu and Leyte; March 

 18,1909; 385 fathoms; surface temperature 80° F. ; three specimens, 

 Cat. No. 6404 U.S.N.M. 



D. 5437, Hermana Mayor Light, west coast of Luzon; May 8, 1909; 

 100-600 fathoms; surface temperature 86° F. ; twelve specimens, 

 Cat. No. 6494 U.S.N.M. 



D. 5613, Buka Buka Island, Gulf of Tomini, Celebes; Nov. 20, 

 1909; 752 fathoms; surface temperature 84° F.; one specimen, 

 Cat. No. 6504 U.S.N.M. 



D. 5331, Hermana Menor Island, off western Luzon, Philippine 

 Islands; Nov. 22, 190S; surface: surface temperature 80° F.; sur- 

 face density 1.02422; three specimens, Cat. No. 6491, U.S.N.M. These 

 specimens we have not studied. 



Jolo anchorage, Electric Light, March 5, 1908; one specimen, Cat. 

 No. 6503, U.S.N.M. 



Albatross Northwestern Pacific Cruise 1906: 



D. 5064, off Ose Saki, Suruga Gulf, Japan; Oct. 15, 1906: 575 

 fathoms; surface temperature 69° F.; twelve specimens, Cat. No. 

 6492 U.S.N.M. 



Other specimens in the collection of the United States National 

 Museum are as follows: Carnegie Magnetic Expedition between 

 Hawaii and California (not more accurately located) ; one specimen, 

 Cat. No. 6500 U.S.N.M. 



Three specimens from an unnumbered station off La Jolla, Cali- 

 fornia, July 23, 1904 (Ritter), two of these are Cat. No. 6485 

 U.S.N.M. 



One specimen, from Ward's Natural Science Establishment, from 

 the "South Pacific," Cat. No. 6511 U.S.N.M. 



Two small specimens of doubtful identification taken by the 

 Albatross at: 



D. 3750, off Honshu Island, Japan; May 10, 1900; 83-140 fathoms; 

 surface temperature 65° F.; one specimen. 



D. 5124, Point Origon, off eastern Mindoro; Feb. 2, 1908; 281 

 fathoms; surface temperature 79° F.; surface density, 1.02468; 

 one specimen, dried out. 



