REPORT ON THE AMPHIPODA. 127 



synonymy. Next is given "Atyle, Atylus, L^acli. Gammarus. Fab. Talitrus, Lat.," with 

 the species Atylus carinatus, Ldach, having for synonym Gammarus carinatus, Fab. The 

 remark is made that " Risso describes a species of Talitrus {T. rubropundatus) which might 

 well belong to the genus Atylus." 



"Typhis, Ti/phis, Risso, Lat. Lamk." is described in accordance with the views of Latreille 

 among the Decempedes, where it is placed in company with Anceus and Praniza. 



Under " IjROPTiEB, Uroptera. Lat.," the genus Hyperia, Lat., is described. Desmarest is referred 

 to for the species " Hyperia Suerii." Montagu's descriptions of " Cancer gammarus Galha " 

 and Cancer monoculoides, are translated in the belief that these species either belong to the 

 genus Hyperia or come very near it. Plirosina, Risso, is next described, and Risso's 

 accounts given of the two species Phrosina semilunata and "Plirosina macrojMalma.'' 

 Gu^rin's own genus Themisto follows, being very fully de.scribed, with Themisto Gaudi- 

 cliaiidii for the type species. The account was repeated with but slight variation in a 

 separate memoir in 1828. See note on Gu^rin under that date. In the Encyclopaedia 

 Guerin appends to his description of Tliemisto, one of " Rhoe, Rhoea. Milne Edw.," 

 observing, " k la suite des Uroptferes, nous devons fairs mention d'un nouveau genre que 

 vient d'^tablir M. Milne Edwards dans les Aimales des Scie7ices luitiirelles. Ce naturaliste 

 pense qu'il forme le passage entre les Amphipodes et les Euphees de M. Risso, que M. 

 Latreille r6unit h, son genre Apseude. M. Edwards croit qu'en modifiant un peu les 

 caracteres de la famille des Uroptferes, son genre s'y placera ais^ment et d'une maniere 

 naturelle." Lastly Guerin gives " Zuphee. Zuplma. Risso," and " Hexone, Hexona. 

 Risso," but he is not able to add anything to Risso's statements about them. The volume 

 ends with an alphabetical table of the articles which come into the dictionary not in their 

 alphabetical order. Here Ch^vroUe appears as Chevralle, Cyame as Cyane, Hyp^rie as 

 Hysperie. Phrosine and Themisto are not mentioned. 



1825. SaVIGNY, JuLES-CfeAE. 



Description de rEg}^3te, publiee par les ordres de sa Majeste rEmpereur 

 Napoleon-le-grand. Histoire Naturelle. Animaux articules. Crustaces. PI. XI. 

 dessind et grave en 1805-1812. 



The illness of Savigny prevented him from writing the text to his elaborate Plates. After 

 waiting for many years, the French Government at length entrusted the task to Victor 

 Audouin. The brief account which he gave of the Amphipoda is quoted in the Note on 

 Audouin, 1825. It may here be mentioned that 2. Lycesta furiiia, Savigny, is now known 

 as Leucothoe furina ; 3. Gammarus Fres7ielii, Audouin, is now called Melita Fresnelii ; 4. 

 Cymadusa filosa, Savigny, is now ca.]led Amphitkoe Jilosa ; 6. retains the name AmpMthoii 

 Ramondi, Audouin, but is not easily to be distinguished from Ampliithoe jilosa, except that 

 it has the ocular lobe of the head more sharply produced between the antenns ; 5. which is 

 not positively named by Audouin at all, though he hints at Ampliithoe rubricata, Montagu, 

 resembles Amphitkoe Jilosa and Amphitliue Ramondi, except that the wrist in the first 

 gnathopods is longer in jaroportion to the hand, the hand of the second gnathopods is 

 rather densely setose on the anterior margin, and the third joint of the peduncle of the 

 upper antennee is by comparison elongate. 7. Orchestia Montagui ; 8. Orchestia Deshayesii; 

 and, with some authors, 9. Orchestia Cloquetii, retain the names assigned them by Audouin. 

 Orchestia Cloquetii, the figure of which has met with some mishap in the British Museum 

 Catalogue, was placed by Gu^rin-Meneville in one of his divisions of the genus Talitrus. 

 Savigny's figure of it is here reproduced. It will be seen by the position of the larger 



