58 PERCY SLADEN TRUST EXPEDITION 
reasons for this course are given, and in view of the imperfection of Milne Edwards’ 
account its adoption cannot be recommended. L. pacificus, Dana, is without doubt distinct 
from the species to which most authors have applied the name typus. 
In Mr Gardiner’s collection there are two species of Lucifer. One, which was found 
in great abundance, is L. acestra, Dana (= L. reynaudii, auct.), while the second, of which 
only three specimens were obtained, is, I believe, Dana’s L. reynaudi, a species distinct 
from the form common on the Indian coast, 1.e. the L. typus of most authorities. 
4. Lnucvfer acestra, Dana. 
Lucifer acestra, Dana, U.S. Explor. Exped., Crust., i, 1852, p. 671, pl. 44, fig. 9, and Faxon, Mem. 
Mus. Comp. Zool. Harvard, xviii, 1895, p. 214 (synonymy). 
May 16, 1905. N. of Chagos Archipelago; 3° 31'S., 72° 27’ BE. A, 25 to 0 fms. ; 
two. 50 to 0 fms. ; five. 
May 17—18, 1905. N. of Chagos Archipelago; 4° 16’ S., 71° 53’ KE. B, 25 to 
0 fms.; one. CC. 1200 to 0 fms.; four. H. surface ; six. 
June 30, 1905. 7 miles N.W. of Yéyé, Peros Atoll. M. 25 to 0 fms.; twelve. 
75 to 0 fms.; one. N. 600 to 0 fms. ; seven. 
June 30, 1905. 1—2 miles N.W. of passage into Salomon Atoll. O. 180 to 
O fms.; one. 
July 4—5, 1905. Off passage into Salomon Atoll. Q. surface; twenty-nine. 
Aug. 22,1905. 5 miles W. of Black River, Mauritius. a, 25 to 0 fms. ; twenty. 
Sept. 4, 1905. 8. of Saya de Malha Bank. m. 50 to 0 fms. ; three. 
Sept. 7, 1905. Between Saya de Malha Banks; forty. 
Sept. 9, 1905. N. of N. Saya de Malha Bank. n. surface; eleven. 
Sept. 27, 1905. S. by E. of Farquhar, 10° 27’ S., 51° 17’ E. pp. 200 to 0 fms. ; 
nine. 300 to 0 fms.; thirteen. 400 to 0 fms.; twenty-four. 500 to 0 fms.; eight. 
600 to 0 fms.; seven. 800 to 0 fms.; seven. gq. 1000 to 0 fms.; many. s, 250 to 
0 fms.; very many. ; 
Oct. 1—2, 1905. N. of N. Farquhar. w. surface; two. 
Oct. 2—3, 1905. Providence, off Cerf. x. surface; nine. 
Oct. 6, 1905. Between Providence and Alphonse, 8° 16’ 8., 51° 26’ HE. aa. 900 
to 0 fms.; twenty-five. bb. 140 to 0 fms. ; nineteen. 
Oct. 7, 1905. S. of Alphonse. dd. surface; eleven. 
Oct. 16, 1905. 38 miles N.W. of entrance into Desroches Atoll. kk. 50 to 0 fms. ; 
four. 
Oct. 16, 1905. 6 miles N.N.W. of entrance into Desroches Atoll. nn, 200 to 
0 fms.; five. 
5. Lucifer reynaudu, H. Milne Edwards (Dana). 
Lucifer reynaudii, Dana, U.S. Explor. Exped., Crust., i, 1852, p. 672, pl. 45, figs. 1 a—d. 
June 30, 1905. 7 miles N.W. of Yéyé, Peros Atoll. M. 25 fms.; one male. 
July 5,1905. Off passage into Salomon Atoll. Q. surface; one female. 
Oct. 7, 1905. S. of Alphonse Island. dd, surface ; one male. 
