922 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Oplophorus foliaceus, sp. nov. 
(PI. XX, fig. 8.) 
Rostrum slender, upcurved, one and a half times as long as the rest of the carapace, produced as 
a sharp carina to the posterior border of the carapace; with teeth; its sides continued back by a 
very short post-orbital carina. No tooth at post-lateral angle of carapace. Second, third, and fourth 
abdominal segments terminating in a spine, that of the second segment much the longest. 
In the female the pleuron of the first segment is oblong, not incised; of the second longer than 
high; of the third to fifth segments broadly rounded, not toothed. Telson 
longer than caudal swimmerets, armed with three spinules on each side, 
followed by a very long spine. Antennular peduncle with basal joint the 
longest'; flagella nearly as long as rostrum. Antennal scale the length of 
carapace; four serrations on outer margin. Outer maxillipeds similar to 
those of 0. gracilirostris. Second pair of feet a little shorter than first pair. 
Third pair longer than maxillipeds by length of last article, this article in 
both third and fourth pairs longer than the propodus; lower border of 
ischium and merus spined. The exopods of all the trunk legs are folia- 
ceous, but not rigid; those of fifth pair much reduced in length. The two 
females carry nine and ten large oval eggs, respectively. 
Dimensions . — Ovigerous female, length of carapace 8.4, rostrum 13.8, abdomen 32, greatest 
diameter of egg 2.5 mm. 
Distribution . — Kaiwi Channel, 337 to 442 fathoms, stations 3471 (type locality), 1 female (Cat. No. 
30555), and 4108, 1 female. 
This species differs from all previously described in having a long spine on the second abdominal 
tergum, and in the foliaceous exopods of all the trunk legs. 
Acanthephyra eximea Smith. 
Acanthephyra eximea Smith, Kept. U. S. Fish Commr. for 1882, p. 376 (1884); Kept, for 1885, 667, 
pi. xiv, fig. 1 (1886). 
Acanthephyra eximia Alcock, Desc. Cat. Indian Deep-Sea Crust. Dec. Macr. Anom., 76, 1901 and 
synonymy. 
Distribution . — North coast of Molokai Island, 552 to 809 fathoms, station 3887; vicinity of Modu 
Manu, 876 to 1,059 fathoms, stations 3977 and 4153; vicinity of Kauai Island, 339 to 773 fathoms, 
stations 3985, 4004, 4005, 4018, 4019, 4028, 4029, 4137, 4140, 4141, and 4187; Kaiwi Channel, 433 to 470 
fathoms, stations 4110, 4111, and 4112. 
In these specimens the rostral spines are H, except in the large individual from station 3887 i 
where they are the rostrum not reaching end of acicle and its terminal half unarmed. The spine 
of the third abdominal segment reaches about to the middle of the fourth segment as in the type. 
Color . — Bright carmine, nearly uniform; or scarlet vermilion. 
Acanthephyra debilis A. Milne Edwards. 
Acanthephyra debilis A. Milne Edwards, Ann. Sci. Nat., Zool. (6), XI, 1881, Art. 4, p. 13. Faxon, 
Mem. Mus. Comp. Zool., XVIII, 1895, 163. 
Miersia gracilis Smith, Bull. Mus. Comp. Zool., X, 1882, 70, pi. xi, figs. 4-4d. 
Acanthephyra debilis var. Europae a A. Milne Edwards, Kec. PI. Travailleur, pi. xxxm, 1883. 
Acanthephyra gracilis Smith, Rept. CL S. Fish Commr. for 1882, 672 (1884). 
Vicinity of Kauai Island, 478 to 453 fathoms, station 4029; one specimen. 
Fig. 72. — Oplophorus foliaceus , 
station 4108. a, Telson, x 3J. 
6, Exopod of second foot 
(enlarged). 
