Rev. A. M. Norman’s Notes on British Amphipoda. 135 
much smaller. The fifth has four teeth—two on each side— 
of which the exterior is the larger, and between them an 
articulated spine ; the sixth segment sometimes bears a pair of 
small tubercles or minute spines at the base of the telson. The 
infero-posteal angle of the epimera of the third segment of 
the pleon is greatly produced, upturned, very acute, and 
strongly toothed on both margins. 
The armature of the earlier segments of the pleon is subject 
to some variation. Bate’s figure of the type in Cat. Amphip. 
Brit. Mus. represents a remarkably abnormal form, the first 
segment of the pleon having five and the second seven teeth ; 
but much latitude must be allowed for variation in the dorsal 
armature of members of this genus. 
In the female the second gnathopods are nearly similar in 
form to the first, but larger, and it is without the fur which 
clothes the front margin of meros, carpus, and hand in the 
first pair. 
Hab. Salcombe, Devon ; Falmouth; Guernsey (A. M. N.); 
North-east Scotland (Dr. Day): Mus. Norm. Plymouth 
(Parfitt). 
Mstribution. Boulogne (Paris Museum) ; Western France 
(Chevreaux) ; Azores (Th. Barrois). 
4, Melita dentata (Kroyer). 
1842. Gammarus dentatus, Kroyer, Nat. Tidskr. vol. iv. p. 159. 
1854. Gammarus purpuratus, Stimpson, Invert. of Grand Manan, 
p- 95. 
1855. Gammarus Kréyert, Bell, App. to Belcher’s Last Arctic Voyage, 
p- 405, pl. xxxiy. fig. 4 
1859. Gammarus dentatus, Bruzelius, Skand. Amphip. Gamm. p. 61. 
1862. Megamera dentata, Bate, Cat. Amphip. Brit. Mus. p. 225, 
pl. xxxix. fig. 4. 
1862. Megamera Kroyeri, id. ibid. p. 229, pl. xl. fig. 4. 
1865. Gammarus dentatus, Goés, Crust. Amphip. Gamm. maris 
Spetsb. p. 14, fig. 29 (not fig. 29’). 
1870. Mehta dentata, Boeck, Crust. Amphip. bor. et arct. p. 131. 
1872. Melita dentata, Boeck, De Skand. og Arkt. Amphip. p. 389, 
pl. xxiii. fig. 10. 
1884. Melita dentata, 8. Schneider, Crust. og Pyenogon. indsamlede i 
Kveenangsfjorden, 1881, p. 118. 
Antennules : first jomt with a long spine at the lower side 
of the distal margin, second joint much more slender and 
longer than first; third one third length of preceding and 
equal to two first of flagellum ; accessory flagellum of four long 
joints. Antenne shorter than antennules, but peduncle 
longer than that of antenne, its last two joints subequal ; 
flagellum about equal to last joimt of peduncle in length. 
§ q J I § 
