180 BULLETIN OF THE 
M. microphthalma was taken by the “Blake” among the West Indies in 
573-1030 fathoms, and by the “Challenger” in the same region in 390 fathoms, 
north of the Kermadec Islands in 600 fathoms, and near Ascension Island in 
425 fathoms. 
Galacantha rostrata A. M. Epw. 
Galacantha rostrata A. M. Epw., Bull. Mus. Comp. Zoöl., VIIT. 52, 1880. 
Galacantha bellis HexD., Ann. Mag. Nat. Hist., 5th Ser., XVI. 418, 1885; Rep. 
Challenger Anomura, p. 167, Plate XIX. Fig. 6, 1888. 
Station 2362. 1175 fathoms. 1 male. 
O LOL © 3 males, 2 females (1 ovig.). 
war  LBOU. t 1 female. 
The “ Albatross” specimens differ from the typical West Indian form in the 
greater divergence of the lateral spines, the anterior being more nearly parallel 
with the axis of the body; the abdomen. is smoother toward the central part 
of the segments; the dorsal spine of the fourth abdominal segment is smaller. 
There is-considerable variation among different individuals, and the characters 
pointed out by Henderson to distinguish G. bellis can hardly be deemed of spe- 
cific value. The color in life is red, paler and yellowish toward the middle of 
the carapace. G. rostrata has been collected in the West Indian seas in from 
1098 to 1591 fathoms, and off Juan Fernandez in 1375 fathoms (G. bellis 
Hend.). 
Galacantha diomedese, sp. nov. 
Rostrum without lateral spines; distal part turned upward at an angle of 
less than 95° in most specimens, but in some cases the inclination is greater; 
basal part marginate, the margin running for some distance along the anterior 
edge of the carapace ; a slight keel runs back from the rostrum to the median 
gastric spine. Gastric spine smaller than in G. rostrata ; anterior lateral spine 
much longer than the posterior; there is an additional small spine on the side 
of the carapace, just behind the cervical suture. Anterior half of the carapace 
ornamented with setiferous squamous tubercles; on the posterior half of the 
'arapace the tubercles assume the form of interrupted transverse ridges. The 
median spines of the abdomen are small, diminishing successively in size from 
the first to the third, which is obsolete in some examples. Upper surface of 
abdomen rather hairy, the pleure tuberculose, angles rounded. The legs are 
rough with granular setose tubercles. There are two prominent spines at the 
distal end of the carpus of the chelipeds, and one at the distal end of the carpus 
and merus of the ambulatory limbs. The antenne are twice and a half as long 
as the body. 
Dimensions of a female specimen. Length of body, 79 mm.; length of cara- 
pace, 39 mm. ; breadth of carapace, not including the lateral spines, 25 mm. 
This species runs into a well marked variety, in which the anterior lateral 
spines, as well as the median gastric spine, are very much smaller than in the 
