GREGARIOUS CRUSTACEA FROM CEYLON. 
21 
the Ceylon specimens in various tints of mottled brown or gray, 
the margins light. The light margins have sometimes points of 
orange, producing a deceptive appearance of tubercles. 
The length of the large specimens is from 7*5 to 8 mm., with a 
breadth half the length. The proportion of the pleon to the rest of 
the body is not nearly so great as depicted in Bate’s dorsal view 
of the animal. 
Since Bate supplies no trustworthy distinction between S. tere¬ 
brans and&. vastator , and since both in the “Annals and Magazine” 
and subsequently in the “ Zoological Record ” he gives what is 
called page precedence to S. terebrans , that appears to be the name 
deserving adoption. It was chosen indeed by Fritz Muller, 
but as the description was given by Spence Bate, he must be recog¬ 
nized as the authority, and in this instance it will be seen from the 
foregoing discussion that the personal equation counts for much. 
Sphceroma verrucauda , White, from the accounts of Dana 
and Miers, appears to have some affinity with this species, but 
though found in rotten wood, the cavities were bored by Teredo. 
It has also been found in sandstone, the hollows of which it is 
not likely to have produced. Sphceroma felix , Lanchester, des¬ 
cribed from the “ Skeat ” expedition to the Malay Peninsula (Proc. 
Zool. Soc. London, 1902, p. 379), shows also a rather near agree¬ 
ment, but there the outer ramus of the uropod has eight small 
teeth on the outer margin. 
AMPHIPODA. 
GAMMARIDEA. 
Family : GAMMARIML 
ME LIT A, Leach. 
1813. Melita , Leach, Edinb. Encycl., vol. YII., p. 403. 
L853. Melita , Dana, U.S. Expl. Exp., vol. XIII., pp. 911, 962. 
1862. Melita , Bate, Catal. Brit. Mus. Amph., p. 181. 
1888. Melita , Stebbing, Challenger Amphipoda, Reports, vol. 
XXIX., pp. 263,1710. 
1893. Melita , Della Valle, Gammarini, Fauna und Flora des 
Golfes von Neapel., mon. 20, p. 707. 
1894. Melita , Sars, Crustacea of Norway, vol. I., pt. 23, p. 507. 
1900. Melita , Chevreux, Amphipodes de V Hirondelle, p. 78. 
The genus was originally founded upon Melita palmata , Mon¬ 
tagu. Dana rashly made it part of the generic character that the 
upper antennae were without an accessory appendage, though 
confessing that he was still in doubt whether in Montagu’s species 
they had one or not. With equal rashness Bate transferred 
