"REPORT ON THE AMPHIPODA. 61 



FriscJi. 7. Tab. 18 ; indeed, in the twelfth edition Rosel's figure is actually referred to two 

 species, to locusta and to pulex, and yet it can only represent one species ; as also the 

 figure referred to in Sulzer's Kennz. Tab. 23. Fig. 152. represents Eosel's C. pulex. 

 Klein's bad description and figure in his Dub. circa Lin. class, quadr. et amphib. p. 36. tab. 

 fig. 8. e. C might appear doubtful, but because in the Baltic (Ostsee) on\j pzdex but not 

 locusta is commonly noticed, Klein's figure will have to be referred to ^?«Ze.r, as well as that 

 in Klein hist. pise. Miss. V. p. 9. tab. ^ A. B. C. Consequently not one of Linnaus's 

 references is left for locusta; he must therefore either have taken the larger Pulex-species 

 occurring in the Baltic (in der See) for Lonista, or have intended a quite unknown Locusta. 

 I therefore here describe under the name Locusta not Linnffius's, but the species found in 

 Pallas Spicileg. Zool. Ease. 9, and really distinct from G. pulex; of which no author 

 makes mention unless it be Ray. Jiist. ins. p. 44; who distinguishes a sea- water flea from that 

 in fresh water, and refers to a figure in Badonmis i^emptad. p>. 4, 76." The species here 

 discussed is now known as Talitrus locusta, Pallas. Eay's Dadonseus should be Dodonteus, 

 i.e., Eembert Dodoens. 



" 70. Die Gammarelle. Cancer gammarelhis," with references to Pallas, Gronovius, Easter, and 

 Scopoli. This is the Oriiscus gammarelJus of Pallas, now known as Orchestia gammarellus. 

 Herbst gives Pallas the credit of having distinguished it from Cancer pulex, and it wiU be 

 noticed that he omits the generic (Gammarellus), perhaps not knowing exactly what to do 

 with a generic name the same as the specific. 



" 71. Der Seefloh. Cancer (Gammarellus) p-ulex," with references to fifteen authors and eighteen 

 different works, beginning with " Lin. Syst. Nat. 81," and ending with " Scopol. Ent. 

 Cam. 1137." He ends his description by saying, " whether the Cancer pulex of Linne be 

 the same as C. pulex of Scopoli, may rightly be doubted, since the latter lives always in 

 fresh water." Herbst borrows his figure from Eosel, but neither makes his description 

 tally with the figure, nor takes notice of the differences. 



"72. Die Sandgarneele. Cancer (Gammarellus) arenarius." with references to " 0/^. Fabric. 

 Fauna Gronl. 259. n. 234," and " Acta Hafn. X. 5 tab. 2. Hg. 1-8," which is perhaps 

 Amatliilla Tiomari, J. C. Fabr. 



" 73. Das Dickhorn. Cancer (Gammarellus) crassicornis. Fabric. Syst. Ent. 415. 7. Spec. 

 Ins. 511. 9. Ast. antennis posticis bifidis, thorace articulato, pedibus sexti paris longissimis. 

 Mant. 1. 332. 11. Mus. Banks." This is, apparently, not an Amphipod, unless it be one 

 of the Hyperina in disguise. 



" 74. Die Stromische Garneelassel. Cancer (Gammarellus) stromianus. Ott. Fabric. Fauna 

 Gronl. 261. n. 235. 



" 7-5. Die Dornhand. Cancer (Gammarellus) spinicarpns, with a reference to " 0. Milller 

 Zool. Dan. p. 66. tab. 119. fig. 1-4- Gammarus brachiis quatuor chelatis, in spinam pro- 

 ductis," this being the Gammarus spiiiicarpus of Abildgaard in the third volume of the 

 Zool. Dan. 



" 76. Der Monch. Cancer (Gammarellus) scdcntarius, Forskal. 



" 77. Die Cicadengarneele. Cancer (Gammarellus) cicada. Ott. Fabric. Faun. Gr'Oid. 258. 

 n. 233. 



" 78. Der Sageriicken. Cancer (Gammarellus) serraius. Ott. Fabric. Faun. Gronl. 262. n. 237. 



" 79. Die Medusenassel. Cancer (Gammarellus) medusarum," with references to J. C. Fabricius 

 Strom, 0. F. Miiller, Otto Fabricius, and Bomare, v. 235. He here therefore combines the 

 species now named respectively Hyper ia medusarum, 0. F. MiiUer, and Hyper ia 

 Jifoeyrri, Bovallius. 



" 80. Der Horntrager. Cancer (Gammarellus) corniger. Fabric. Spec. Lis. 517. 7. 



" 81. Der Abyssiner. Cancer (Gammarellus) abyssinus. Ott. Fabric. Fauna Gronl. 261. n. 236. 



" 82. Der Fadenkrebs. Cancer (Gammarellus) linearis," with references to the species linearis 



