70 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.48. 



Mayen and at places near east Greenland, going northward to lat. 



74° 30 ' N. Its occurrence in the western Mediterranean, along the 



western coasts of Europe to Vadso and in the Arctic Sea north of 



Europe and Asia has been dealt with in the TngroZ/Malacostraca (vol. 1) 



which also contains more detailed information. Richters's statement, 



with a query, about its occurrence in Bering Sea is undoubtedly 



wrong. 



Genus NYCTIPHANES G. O. Sars. 



The genus comprises four species, but only a single form is repre- 

 sented in the collection. 



9. NYCTIPHANES SIMPLEX H. J. Hansen (1911). 



1912. Nyctiphanes simplex H. J. Hansen, Mem. Mus. Comp. Zool., vol. 35, No. 4, 

 pp. 227, 288, pi. 6, figs. 2a-2i (adult and subadult); pi. 7, figs, la-16 (young); 

 pi. 12, figs. 3a-3/ (larval stages). 



Occurrence. — Among the unnamed material, specimens from six 

 stations in the east Pacific are at hand: 



Sta. 4399. April 7, 1904. Lat. 32° 44' 50" N.; long. 117° 48' 45" 

 W. Surface. Surf. temp. 62°. 4.18 p. m. 4 specimens. 



San Luis Gonzales Bay, Gulf of California (about lat. 30° N\; long. 

 114i° W.). March 27, 1889. Albatross. Enormous number of 

 specimens. 



Sta. 2834. May 3, 1888. Lat. 26° 14' N.; long. 113° 13' W. 

 From stomach of Merlucius. Many specimens. 



Sur. 16. March 1, 1888. Lat. 4° 21' N.; long. 81° 59' W. 

 Moonlight. Surface. Surf. temp. 74°. 2 specimens. 



Sur. 28. April 7, 1888. Off Hood Island, Galapagos Archipelago. 

 Surface. Scoop net, electric light. Clear starlight. 8-9 p. m. 

 Numerous specimens. 



Narborough Id., Galapagos. From stomach of Puffinus. Jan- 

 uary 5, 1889. Stanford University. Numerous fine specimens. 



Furthermore, the material from seven of the nine stations recorded 

 in 1894 by Ortmann for Nyctiphanes australis G. O. Sars belongs to 

 N. simplex: (The specimens from the two other stations belong to 

 EupTiausia recurva H. J. Hansen, and are recorded later on.) 



Sur. 542. January 14, 1892. Lat. 35° 31' N.; long. 124° 57' 30" 

 W. Surface. Surf. temp. 56°. 8 specimens. 



Sur. 52. October 13 or 14, 1891. About lat. 35° N.; long. 129° 

 W. Surface. 1 specimen. 



Sta. 3435. April 22, 1891. Lat. 26° 48' N.; long. 110° 45' 20" 

 W. Surface. Surf. temp. 70°. 6 young specimens. 



Hyd. 2619. March 11, 1891. Lat. 7° 31' N.; long. 78° 42' 30" 

 W. 1,000-0 fathoms. 1 specimen. 



Sta. 3388. March 9, 1891. Lat. 7° 06' N.; long. 79° 48' W. 

 400-0 fathoms. 1 specimen. 



