CRUSTACEA FROM THE FALKLAND ISLANDS. 371 
1879. Haplocheira typica Waswell, P. Linn. Soe. N.S. Wales, 
vol. iv. p. 273, pl. 11. fig. 2. 
1906. H. barbimana Stebbing, Das Tierreich, vol. xxi. p. 609. 
1907. 5 Walker, National Antarct. Exp. vol. iii., 
Amphip. p. 35. 
1912. iy Chilton, Tr. R. Soc. Edinb. vol. xivii. p. 510. 
Mr. Vallentin obtained a specimen at Stanley in seaweed at 
low water of a spring tide, and others from a sponge on a 
schooner. 
Fam. AMPITHOID &. 
1899. Ampithoide Stebbing, Ann. Nat. Hist. ser. 7, vol. iv. p. 211. 
Gen. AmprrHoE Leach. 
1813-14. Ampithde Leach, Edinb. Eneyel. vol. vil. pp. 408, 432. 
1906. Ampithoe Stebbing, Das Tierreich, vol. xxi. p. 631. 
AMPITHOE BREVIPES (Dana). 
1852. Amphithoe brevipes Dana, P. Amer. Acad. vol. ii. p. 216. 
1853-5. __,, tia Dana, U.S. Expl. Exp. vol. xiii. p. 941, 
pl. 64. figs. 5 a2, k-n, and 1, md, m\*. 
1906. Ampithoe brevipes Stebbing, Das Tierreich, vol. xxi. p. 637. 
A female specimen 20 mm. in length, carrying numerous small 
eggs, agrees remarkably well with Dana’s figures and description, 
except that neither the first nor the second uropods have the 
rami so equal in length as his figure represents, nor is the 
more slender (and longer) ramus so devoid of spines. The 
glandular second joint in the first and second pereopods, so 
important for nest-building, is, as Dana notes, conspicuously 
swollen. 
Locality. Found “with their ‘nests’ made on a frond of 
Macrocystis pyrifera, 1 foot from the surface,” Nov. 24, 1898. 
Fam. J ASSID &. 
1906. Jasside Stebbing, Das Tierreich, vol. xxi. pp. 8, 647, 739. 
Gen. JAssa Leach. 
1814. Jassa Leach, Edinb. Encyel. vol. vii. p. 433. 
1906. ,, Stebbing, Das Tierreich, vol. xxi. pp. 652, 739. 
1913. ,, Chevreux, Deuxiéme Exp. Antarct. frangaise, 
Amphip. p. 181. 
JASSA FALCATUS (Montagu). 
1808. Cancer (Gammarus) falcatus Montagu, Trans. Linn. Soc. 
; London, vol. ix. p. 100, pl. 5. fig. 2. 
1906. Jassa falcata Stebbing, Das Tierreich, vol. xxi. p. 656. 
OTe Fo 55 55 sexton, J. Mar. Biol. Assoc. vol. ix. p. 212. 
ON Deans ,, Chilton, Tr. R. Soc. Edinb. vol. xlviii. p. 511. 
Under Montagu’s specific name Dr. Chilton groups a great 
Proc, Zoou. Soc.—-1914, No. XXV. 25 
