NO. 1876. ON THE CRUSTACEAN ORDER CUMACEA—CALMAN. 661 



DIASTYLIS STYGIA G. O, Sars. 



Diastylis stijgia G. 0. Sars, Oefvers. Kgl. Vet. Akad. Forh., vol. 28, 1871, p. 798; 

 Kgl. Svenska Vet. Akad. Handl., vol. 11, 1873, No. 6., p. 6, pi. 2, figs. 4-7; 

 Rep. Cumacea Challenger, 188G, p. 44, pis. 6-8. 



This characteristically deep-water species has not hitherto been 

 recorded from a less depth than 620 fathoms,' and I am inchned to 

 suspect an error in the label wliich attributes one of the specimens in 

 the present collection to U. S. F. C. station 1038, at which the depth 

 was only 146 fathoms. The species is known to descend to 2,600 

 fathoms. 



Localities.— Albatross station 2706; lat. 41° 28' 30" N.; long. 65° 

 35' 30" W.; 1,188 fathoms; U.S.N.M. 11900; 1 female. 



Albatross station 2575; lat. 41° 07' 00" N.; long. 65° 26' 30" W.; 

 1,710 fathoms; bottom temperature, 37.1° F.; U.S.N.M. 11013; 8, 

 male and female. 



Albatross station 2573; lat. 40° 34' 18" N.; long. 66° 09' 00" W.; 

 1,742 fathoms; bottom temperature, 37.3° F.; U.S.N.M. 11006; many, 

 male and female. 



Albatross station 2572; lat. 40° 29' 00" N.; long. 66° 04' 00" W.; 

 1,769 fathoms; bottom temperature, 37.8° F.; U.S.N.M. 10998, 38206; 

 many, male and female. 



Albatross station 2535; lat. 40° 03' 30" N.; long. 67° 27' 15" W.; 

 1,149 fathoms; bottom temperature, 37.8° F.; U.S.N.M. 38208, 44096; 

 3 females. 



Albatross station 2534; lat. 40° 01' 00" N.; long. 67° 29' 15" W.; 

 1,234 fathoms; bottom temperature, 37.8° F.; U.S.N.M. 10890; 3 

 females. 



U. S. F. C. station 1038(?): lat. 39° 58' 00" N.; long. 70° 06' 00" 

 W.; 146 fathoms; bottom temperature, 47° F.; U.S.N.M. 44095; 1 

 female. 



Albatross station 2570; lat. 39° 54' 00" N.; long. 67° 05' 30" W.; 

 1,813 fathoms; bottom temperature, 36.8° F.; U.S.N.M. 10892, 

 11009; many, male and female. 



Albatross station 2043; lat. 39° 49' 00" N.; long. 68° 28' 30" W.; 

 1,467 fathoms; bottom temperature, 38.5° F.; U.S.N.M. 44097; 1 

 female. 



Albatross station 2221; lat. 39° 05' 30" N.; long. 70° 44' 30" W.; 

 1,525 fathoms; bottom temperature, 36.9° F.; U.S.N.M. 8506, 34302, 

 34303, 44098, 44099; many, male and female. 



Albatross station 2711; lat. 38° 59' 00" N.; long. 70° 07' 00" W.; 

 1,544 fathoms; U.S.N.M. 11983; 4 females. 



Albatross station 2228; lat. 37° 25' 00" N.; long. 73° 06' 00" W.; 

 1,582 fathoms; bottom temperature, 36.8° F.; U.S.N.M. 44100; 1 

 male, 1 female. 



« Sars, Norweg. N. Atl. Exped. Crustacea, vol. 2, 1886, p. 22. 



