60 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 48. 



eral forms, enumeration of the localities for every species, etc. In 

 the present paper that task is attempted. 



In most cases it has been deemed unnecessary to give a full account 

 of the synonymy, because in papers published in 1908-1913 I have 

 dealt with this topic for the major part of the species, but I always 

 refer to one or two of the best descriptions and illustrations of the 

 form in question. At each species all localities are enumerated, and 

 generally they are arranged according to latitude, but localities in 

 the Pacific are, of course, kept separately from those in the Atlantic. 

 It may be added that I have also had for inspection the material 

 worked out by Ortmann in 1894 1 and in 1905 2 , and the localities 

 for these animals are mentioned separately after the other stations 

 from the Pacific under the species in question. 



For some species which do not occur near the surface I have at each 

 station added the depth of the sea, though the animals, at least gener- 

 ally, inhabit intermediate layers. For some species which frequently 

 five at the surface I have noted the surface temperature at every 

 locality, and when the animals have been caught at the surface I have 

 generally noted not only the temperature but also the hour, etc. 



As to the localities it may be said here that all marked " Sta." belong 

 to the United States Bureau of Fisheries, and of these all numbers 

 after Station 2000 are Albatross stations. The places marked " Hyd." 

 or "Sur." are separate kinds of Albatross localities. 



Genus BENTHEUPHAUSIA G. O. Sars. 

 Of this most interesting genus only a single species is known. 



1. BENTHEUPHAUSIA AMBLYOPS G. O. Sars (1883). 



1885. Bentheuphausia amblyops G. O. Saks, Challenger Rep., vol. 13, p. 109, pi. 

 19, text-fig. 4. 



Occurrence. — This species has been taken at two stations in the 

 northwestern Atlantic : 



Sta. 2044. July 31, 1883. Lat. 40° 00' 30" N.; long. 68° 37' 20" 

 W. 1,067 fathoms. 1 small specimen. 



Sta. 2099. October 2, 1883. Lat. 37° 12' 30" N.; long. 69° 39' 

 W. 2,949 fathoms. 1 full-grown specimen. 



Distribution. — The very wide distribution of this deep-sea form has 

 been given in my Harvard paper. 3 



Genus THYSANOPODA Milne Edwards. 



This genus comprises 11 species, 6 of which are represented in the 

 collection. As to the grouping of the species I refer to my Harvard 

 work. 



i Bull. Mus. Comp. Zool., vol. 25, No. 8. 



2 Bull. U. S. Comm. Fish and Fisheries for 1903, pt. 3. 



8 Mem. Mus. Comp. Zool., vol. 30, No. 4, 1912, p. 207. 





