CRUSTACEA FROM THE FALKLAND ISLANDS. 345 
the pleon of the male is narrow in gay2, wide in albatrossis, inter- 
mediate in hassleri. Without having specimens from various 
localities for comparison, it would be presumptuous for me to 
contest Miss Rathbun’s judgment on the matter. I accept the 
name albatrossis for the Falkland Islands specimens, inasmuch 
as they have the front faintly bilobed, the dactyli long, with a 
curvature which may be relatively less in a long finger than in a 
short one, the carapace not very hairy (but at the same time 
generally smooth except in front), and the fourth joint of the 
third maxilliped with the outer margin diverging slightly from 
that of the preceding joint., 
The carapace is stated to be in A. gayi “narrow; width 1-05 
to 1-08 times length”; in A. albatrossis “ width mtermediate, 
1-08 to 1°12 times length”; in hasslert “wide; width 1:16 times 
length.” In measuring Falkland Islands specimens, I was certainly 
prejudiced in favour of the name albatrossis by finding the 
measurements respectively, width 1:12 times length of the first 
example and 1-08 of the second. These were females laden with 
egos. Then a male gave width 1:15 times length, with the pleon 
decidedly narrow. The females laden with eggs vary greatly in 
size, One specimen measuring 13°5 mm. long, 15 mm. broad, 
another 23 mim. long, 26 mm. broad. The right cheliped appears 
to be usually, but not invariably the larger. The ambulatory 
legs have a dense fringe of hairs, but whether this leaves them 
less hairy than those of 4. gayi 1s matter for comparison. 
Locality. Roy Cove, Nov. 12, 1909, and June 16—24, 1910. 
Tribe CATOMETOPA. 
Fam. GRAPSID&. 
1900. Grapside Alcock, J. Asiat. Soc. Bengal, vol. xix. pt. 2, 
p- 283. 
Gen. PLANES Bowdich. 
1825. Planes Bowdich, Excursions in Madeira and Porto Santo, 
Da Lomesse2 210. 
1910. Planes Stebbing, Ann. 8. Afr. Mus. vol. vi. p. 320. 
PLANES MINUTUS (Linn.). 
1758. Cancer minutus Linn. Syst. Nat. ed. 10, vol. 1. p. 625. 
It is not surprising that this little wanderer has been taken by 
Mr. Vallentin at the Falkland Islands, its distribution being very 
extensive. 
MACRURA ANOMALA. 
Tribe PAGURIDEA. 
Fam. PAGURID 4. 
Gen. EKupracurus Brandt. 
1851. Hupagurus Brandt, Middendorff's Sibirische Reise, Zool. 
pt. I, p. 105. 
