C54< MR. E. J. MiERS ON A COLLECTION OF [Janel9, 



Anomura. 



Clibanarius cayennensis, n. Cayenne. Clibanarius Jordii, n. Vancouvei" Island. 



carnescens, n. „ isochirus. — ? 



speeiostis, n. Brazil. p^^osimanus, — ? 



Maceura. 



Palasmon nattereri, Heller. Quiana. Palfemon gaudichaudii, M.-Eclw. Peru. 



brasiliensis, „ „ Euryrbynchus wrzesniowskii, n. 



jelskii, n. „ Cayenne. 



ISOPODA. 



Armadillidium Cfelatum, n. Cayenne. Porcellio (Porcelloides) flavo-vittatajn. 

 Armadillo vulgaris, Latr. „ Cayenne. 



Cubaris affinis, n. „ ( ) aztecus, Saussnre. Peru. 



ffiff(is,n. Nicaragua. Pbilougria nitida, n. Peru, Guiana. 



Porcellio cayennensis, n. Cayenne. Lygia baudiniana, M.-Eclw. Cayenne. 



(Porcelloides) jelskii, n. Peru, CjTnotboa oestrum, L. Peru. 



Guiana. Anilocra IsBvis, n. Martinique, Peru. 



Old-world Species. 



DECAPODA. 



Beaciiyura. 



Acaiithonys elongatus, Red Sea. 



Anomura. 

 Clibanarius misanthropua, Risso. 

 ISOPODA. 

 Tylos latreillei, Audouin. Odessa. Porcellio bispida, n. Mongolia. 



• granulatus, n. Japan, Borneo. Lironeoa daurica, n. Dauria. 



Armadillidium pustulatum, Dum. Lironeca laticauda, n. Mantcburia. 



Moldavia. Anilocra trichitira, Mauritius. 



Porcellio swammerdamii, Audouin, 



Egypt. 



New-world Species. 



DECAPODA. 



Brachyura. 



AcANTHONYX, Latveille. 



ACANTHONYX PETIVERII ? 



Cancer muricatus compressus, Petiver, Pterigraphia Americana, 

 pi. XX. fig. 8. 



Acanthonyx petiverii, M.-Edw. Hist. Nat. Crust, i. p. 543 (1834) ; 

 Dana, U.S. Expl. Exp. xiii. Crust, (part i.), p. 128, pi. v. fig. 6 

 (1852) ; Gueria-Meneville in Ramon de la Sagra, Histoire de I'lsle 

 de Cuba, Crust, p. xxvii (1857); v. Martens, Archiv f. Nat. xxxviii. 

 p. 85 (1872). 



Hub. Peru. 



lu all the specimens the teeth of the lateral margins are clothed 

 with tufts of short hairs. In one or two specimens there are two 

 small tufts upon the gastric region ; in the others these are entirely 

 absent. The median tooth of the lateral margin is always much 

 nearer to the posterior than to the anterior tooth ; the anterior tooth 

 is somewhat less prominent in the youngest specimens. In the males 



