XXVIII INDICE ANALITICO DELLE DIVISIONI, ORDINI, FAMIGLIE, EC. 



44. — Helice tridens, M. Edw Pag. 156 



45. — Helice granulata, Heller 160 



Helicis Gen. specierum prospectus 161 



Subfam. PLAGUSIN^ 162 



Genus. Plagusia , L a t r 163 



46. — Plagusia dentipes, M. E d w 165 



PlagiisicB Gen. specierum prospectus 169 



Fam. V. PINNOTHERIDl ivi 



Subfam. II. HYMENlCINiE, Dana ivi 



Genus. Halicarcinus , White 172 



47. — Halicarcinus ovatus , S t i m p s 173 



48. — Halicarcinus planatus, White 176 



Genus. Hymenosoma , L a t r 179 



49. — Hymenosoma Iseve , N. sp ivi 



Subfam. MYCTIRIDE^E, Dana 182 



Genus. Myctiris, Latr -. ivi 



50. — Myctiris longicarpus, Latr 185 



51. — Myctiris platycheles, M. E d w 186 



Sub. Trib. Leucosiclea, vel Oxystomata, Dana 187 



Fam. II. M4TUT1D1 , Dan a 188 



Genus. Matuta, L. Fabr 190 



52. — Matuta Victor, L. Fabr 191 



Fam. III. LEUCOSIDJE, Dana 193 



Considerazioni generali sui LEncosiDEi e gli Ossistomi. . . • 194 



Genus. Philyra, Leach 196 



53. — Philyra scabriuscula , L e a e h ivi 



54. — Philyra pisum , De Haan 197 



55. — Philyra carinata, Bell 199 



56. — Plùlyra fuliginosa, N. sp 201 



Trib. II. AlVOMiOURA 205 



Anomourorum Sectiones et Subtrìbus apud Dana ivi 



Anomoiirorum Sectiones et Suhtribus apud Edwarsium ivi 



Sect. I. ANOMOURA SUPERIORA 206 



Sub. Trib. I. Dromidea ivi 



Genus. Dromia, L. Fabr ivi 



57. — Dromia Rumphi 207 



Dromidearum generum et specierum apud Stimps. prospectus. ivi 



Sect. II. ANOMOURA MEDIA 210 



Sub. Trib. V. Porcellanidea vel Anomoura grapsidi- 



ca , Dana ivi 



Genus. Porcellana , L a m k ivi 



Porcellanaruni generum apud Stimpsonium 211 



58. — Porcellana angulosa, Guer 212 



Genus. Petrolisthes, Stimps 216 



59. — Petrolisthes tuberculatus , S t i m p s ivi 



60. — Petrolisthes violaceus, Stimps 219 



61. — Petrolisthes ? 221 



Genus. Raphidopus , S t i m p s 222 



