REPORT ON THE AMPHIPODA. 209 



County Down, 1834, Mr. Hyndman and \V. T." There is nothing else ahout Amphipoda. 

 On " Pychnoijanum balxnarum, Fabr.," he observes, " Pi/c. halxnarum must on our coast be 

 content with a smaller victim than a whale, and condescends to suck the juices of an 



Actinia." 



1844. Zaddach, Ernst Gustav, died June 5, 1881 (FricdUinder, Naturae novitates). 



Synopseos crustaceorum Prussicorum prodromus. Eegiomonti, 1844. 



Under the heading " Crustacea, adhuc in provincia nostra Borussia reperta," Zaddach enumerates 

 seven Amphipods. These he names 1. Talitrus naltainr, M.-Edw., which is better 

 called Talitrus locusta; 2. Gmmnarus locusta, Eahr. (?), his doubt being occasioned by 

 differences which he found in his specimens from the description by !Milno-Edwards ; 

 3. Gammarus fiuviatilis, M.-Edw., which is Gammarus pulex, De Geer ; 4. " Gamniarus 

 Dufjesii," M.-Edw., which has been identified with Me/ //a ^a/?na<a ; 5. " Ainjthithoe Rathldi, 

 nov. spec," which, in Zaddach's opinion, "maximo affinis est Amphithox norwei/ic^," 

 Kathke, and by Boeck is identified with the neighbouring species Calliopius Ixviusrulus, 

 Krpyer; 6. Lejitorhnrux jtilosiig, n. g. et sp. ; and 7. Curdplnum l<mgicor7ie, Latr. 



The new genus Leptocheirus is thus defined : — 



" Inter Amphipoda, quae in maris baltici littoribus habitant animalia reperta sunt, qute, concesso 

 genera Amphipodum notis a Milne Edirardfi constitutis discerneuda esse, nulli generi adhuc 

 descripto adnumerari possunt, sed in novum genus, quod Leptocheirum nuiicupari propono, 

 colligenda sunt. Genus enim Amphithoe secundum ilium scriptorem pedibus duorum 

 primorum parium cheliferis, ceterorum non prehensilibus, et autennis superioribus inferioruni 

 trunco longioribus simplicique fiagello instiuctis insigne est. lUa autem animalia, quae nunc 

 describam, cum genere Amphithoe antennarum quidem structura ceterorumque partium 

 formis omnino conveniunt, pedum autem secundi paris construetione ab his differunt et 

 generi Talitro similiora sunt. Hi enim chelis vacui nee ad comprehendas [coniprehendendas] 

 res apti nee ad gradiendum sunt habiles, sed debiles compressique a lateribus et contract! 

 ceterisque pedibus occulti reperiuntur. Ne autem fines hujus novi generis augustiores fiant, 

 hac singulari pedum construetione nou respecta, ' qu;eque Amphipoda saltatoria pedibus 

 primi tantum paris cheliferis, ceteris non prehensilibus et antennis superioribus fiagello 

 auxiliario vacuis inter se congruunt, generi Leptocheiro adnumeranda esse ' puto." 



In the description of the type species, Zaddach very plainly says, " Mandibularum palpi e tribus 

 articulis constant, articulis ptene inter se ajqualibus, idtimo pdoso," so that Boeck, De 

 Skand. og. arkt. Amph., p. 548, seems under some mi-sapprehension when he says, "Miiller 

 viste i 1848 (Arch. f. Naturgesch. xiv. p. 62), at Zaddach havde overseet, at Kindbakkerne 

 ere forsynede med en Palpe, ligesom han ikke havde bemiurket, at de 0vre F0lere have en 

 Bisv0be." That the upper antennfe have a minute accessory flagellum is in fact remarked 

 by Miiller. Boeck retains the name Leptocheirus, though affirming that it is pre-occupied 

 for an insect, Init the earlier name alluded to is spelled LeptocJiirus if Scudder may be 

 trusted on the point. 



1845. GooDSiR, Harry D. S. 



Descrijition of some Animals found amongst the Gulf-Weed. The Annals and 

 Magazine of Natural History. No. 96. February 184.5. Vol. XV. London, 

 1845. 



At p. 75 he describes " Amphifik' jKlagiea. PI. VII. fig. 4. A. with peduncle of superior antenna? 

 about half the length of the inferior antenna, being almost tlie same length as the first threu 



(ZOOL. CHALL. EXP. PART LXVII. — 1887.) Xxx 27 



