162 Proceedings of the Royal Physical Society. 



Genus (52) Guernea, Chevreux, 1887. 

 88. Guernea coalita (Norman). 



1868. Helleria coalita, Norman, Ann. and Mag. Nat. Hist. (4), 

 vol. ii. p. 418, pi. xxii. fig. 8 ; pi. xxiii. figs. 1-6. 



1887. Guernea coalita, Chevreux, Bull. Soc. Zool. de France, vol. xii. 

 p. 16 (separate copy). 



Habitat.— DiQdi^Qdi off' St Monans, 12 to 14 fathoms, 

 1889-90. In a gathering of dredged material from the same 

 place, collected on 22nd May 1901 ; not uncommon. 



Family Melphidippid^. 

 Genus (53) Melphidippella, G. 0. Sars, 1893. 

 89. Melphidippella raacera (Norman). 



1869. Atylus macer, Norman, Brit. Assoc. Report (1868), p. 280. 



Habitat. — Taken with bottom tow-net at Station V., 16th 

 April 1892. At the same Station on 24th April, and at 

 Station VI. on 22nd May 1901 ; not common. 



Family Gam M arid ^. 

 Genus (54) Amathilla, Spence Bate, 1863. 



90. Amathilla honiari (J. C. Fabricius). 



1798. Gammarus homari, Fabr., Entom. Syst. Suppl., p. 418. 

 1863. Amathilla Sahini, Bate and Westw., Brit. Sessile-eyed Crust,, 

 vol. i. p. 361. 



Habitat. — Dredged near May Island, 1889. Also at 



Station IV., 23rd December 1892, and Station VII., 23rd 



February 1894; rare in the adult stage. 



Genus (55) Gammarus, Fabricius, 1776. 



91. Gammarus inarinus, Leach. 



1815. Gammarus marinus. Leach, Trans. Linn. Soc, vol. xi. p. 359. 

 1863. ,, ,, Bate and Westw., op. cit., vol. i. p. 370. 



Habitat. — Taken near Culross, west of Queensferry, 1892. 



Between tide-marks, Dalmeny shore, November 1904 (Evans). 



Generally but sparingly distributed throughout the estuary. 



