CRUSTACEA FROM THE FALKLAND LSLAXDS. 371 



1879. Haplocheira typica Haswell, P. Linn. Soc. N.S. Wales, 

 vol. iv. p. 273, pi. 11. fig. 2. 



1906. H. havhimana Stebbing, D.i,s Tierreich, vol. xxi. p. 609. 



1907. „ Walker, National Antarct. Exp. vol. iii., 



Ampliip. p. 35. 

 1912. „ Chilton, Tr. R. Soc. E.linb. vol. xlviii. p. 510. 



Mr. VaUentin olitainerl a specimen at Stanley in seaweed at 

 low water of a spring tide, anil others from a sponge on a 

 schooner. 



Fam. A >r p I T H o I D .E. 

 1899. Ampitholdxe Stebbing, Ann. Nat. Hist. ser. 7, vol. iv. p. 211. 



Gen. Ampitiioe Leacli. 



1813-14. Amplthoe Leach, Edinb. Encjcl. vol. vii. pp. 403,432. 

 1906. Amplthoe Stebbing, Das Tierreich, vol. xxi, p. 631. 



Ampithoe brevipes (Dana). 



1852. Amphithoe hrevipes Dana, P. Amer. Acad. vol. ii. p. 216. 

 1853-5. „ „ Dana, U.S. Expl. Exp. vol. xiii. p. 941, 



ph 64. figs. 5 «-i, k-n, and I, md, m'"^. 

 1906. Ampithoe hrevipes Stebbing, Das Tierreich, vol. xxi. p. 637. 

 A female specimen 20 mm. in length, carrying numerous small 

 eggs, agrees remarkalily well with Dana's figures and description, 

 except that neither the first nor the second uropods have tlie 

 rami so equal in length as his figure represents, nor is tlie 

 more slender (and longer) ramus so devoid of spines. The 

 glandular second joint in the first and second peraeopods, so 

 important for nest-building, is, as Dana notes, conspicuously 

 swollen. 



Locality. Found " with their * nests ' made on a frond of 

 Macvocystis pyrifera, 1 foot from the surface," Nov. 24, 1898. 



Fam. J ASS ID.E, 

 1906. Jassidce Stebbing, Das Tieri-eich, vol. xxi, pp. 8, 647, 739. 



Gen. Jassa Leach. 

 1814. Jassa Leach, Edinb. Encycl. vol. vii. p. 433. 

 1906. „ Stebbing, Das Tierreich, vol. xxi. pp. 652, 739. 

 1913. ,, Chevreux, Deuxieme Exp. Antarct. fran^aise, 

 Amphip. p. 181. 



Jassa falcatus (Montagu). 



1808. Cancer {Gammarus) falcatus Montagu, Trans. Linn. Soc. 



London, vol. ix. p. 100, pi. 5. fig. 2. 

 1906. Jassa falcata Stebbing, Das Tierreich, vol. xxi. p. 656. 



1911. ,, ,, Sexton, J. Mar. Biol. Assoc, vol. ix. p. 212. 



1912. „ „ Chilton, Tr. II. Soc. Edinb. vol. xlviii. p. 511. 

 Under Montagu's specific name Dr. Chilton groups a great 



Phoc. Zool. Soc— 1914, No. XXV. 25 



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