REPORT ON THE AMPHIPODA. 305 



As first genus in the family Gammaridae, Opis, Kr0yer, is here mentioned, on account of a species 

 from Ireland, said to be Opis tijpica, which does not appear in the Synopsis. " Montagua 

 monoculoides, Montagu, sp.," is figured. In the genus Anonyx, is introduced, besides the 

 species of the Synopsis, " Anonyx albus. A small species, of a white colour ; has been 

 found at Clevedon, in Somersetshire, by the Rev. A. Norman. It is perhaps to this genus 

 that the Gammarus nolens, Johnston, Zool. Journ. iii. p. ] 79, may be referred ; it is about 

 three or four lines long ; the antennae have a whorl of short spines at each joint ; the arms 

 and legs are monodactyle. It is found at Berwick amongst confervEe." Anonyx elegans, 

 Thompson, another species not mentioned in the Synopsis, likewise appears here. " Anonyx 

 Edwardsii," is figured as Kr0yer'8, on the authority of Spence Bate, but wrongly according 

 to Boeck, 1870, and Sars, 1882. Tetromafns tyjncus, Spence Bate, is figured. 



White notes that the name Westwoodia is pre-occupied among Hymenopterous insects. Iphiniedia 

 obesa, Rathke, is figured, pi. x. fig. 6. " AcantJwnotus Owemi" oi the Synopsis is here 

 given as AcantJwnotus testudo ; the name which White himself gave to the species after- 

 wards known as Epimeria rornigera, Fabr. After describing Dexamine sjmiosa, figured pi. x. 

 fig. 7, White says, " to the genus Dexamine belongs the Cancer carino-spinosus, Turton, 

 which Mr. Spence Bate has more fully described under the name Gammarus Moggridgei." 

 In regard to Bate's " Lenihns Websterii," which has " first hand with a thumb on proijodos," 

 and his " Zembos Damnoniensis," which has " first hand with a thumb on carpus," he merely 

 says, " Mr. Bate has described two other species from the south of England — L. Websterii 

 and L. Danmoniensis — both furnished with a thumb on the first hand," as though it was 

 indifferent whether the thumb was on carpus or propodos. 



He omits, not without reason, the description in the Synopsis of Gammarus pidex, Fabr., 

 borrowed from MUne-Edwards. He also omits the " G. ? subt err emeus, Leach," and accepts 

 Gammarus maculatus, Johnston, without hesitation. 



The " Niphargus Sfygius," of Westwood, he changes into Nipliargus aquilex, Schioedte, and 

 asks whether this may not be the Gammarus subterrcmeus of Leach. 



He notices under Bathyporeia, Lindst., that " Mr. Spence Bate now refers his genus Thersites 

 to this, and the species T. GuiUiamsoniana to Bathyporeia pilosa." 



Leucothoe procera, Spence Bate, at its author's own instigation, is identified with Leucothoe furina, 

 Savigny. 



Some account is given from Say of Gerapus tubularis, though not a British species, to introduce 

 an account from Gosse of his Cerapus whitei. D'Orbigny's account of CoropMwn longicorne, 

 figured pi. xi. fig. 1, is quoted from, and mention made that Gosse had taken XJnciola 

 irrorata. Say, in our seas. 



Jassa pelagica. Leach, figured pi. x. fig. 8, and Jassa falcata, Montagu, are given, with a notice 

 that " Mr. Spence Bate believes that this genus [/«*««] is founded merely on females of the 

 preceding " \^Podocerus\ and the further remark that " it is jjerhaps to this genus [./assa] 

 that the Gammarus spinipes of Dr. Johnston is referable (Zool. Journ. iv. p. 417)." 



Under AmpiMtlioe, Leach, besides the species assigned in the Synopsis to Ampliitoe, Leach, Wliite 

 gives " Ampliithoe obtusata, Leach's Coast Screw," which is ]Montagu's species, both before 

 and since known as Melita obtusata. He also gives Ampliithoe dubia, evidently as the 

 name of Johnston's Gaminarus dicbius from Berwick, and therefore not to be confounded 

 with Amp)hit]we dubia of the Brit. Mus. Catal., which is the Aninnpms dubius of Templeton. 



The name Simamphitoe is altered to Synamphithoe, obviously on philological grounds. 



Chelura terebrans, Philippi, is figured pi. xi. fig. 2. Allman's remarks on its habits are 

 quoted. 



The "Tribe Htperita " is then described as follows: — "Head very large. ^Mandibles large, 

 generally ending in crests rather than teeth. First pair of jaws, of three joints, the two 

 last lamellar, the thorax of six or seven joints ; some of the legs prehensile and of curious 

 (zool. chall. EXP. — PART Lxvii. — 1887.) Xxx 39 



