; L 
Conspectus Crustaceorum qug in. Orbis Terrarum circumnavigatione, Carolo 
Wilkes e Classe Heipublica Faderate Duce. f : 
 Lezit et descripsit J. D. Dana. P nd J 
* 
E 
Descriptio Familiarum Subfamiliarum.  Generorumque Crustaceorum Grapsoi- 
deorum in Ephemeride "Scientiarum Americana. Sillimani, vol. xii, p. 283, anno 
1851, auctore edita. Synopsis brevis Familiarum et Subfamiliarum sequens — 
CRUSTACEA GRAPSOIDEA, (CycrourToPA, eee 
. Academiz Scientiarum Naturalium Philadelphiensis, Nuntiis, anno 1851, p. 247.] 
1. AnTICULUS MaxirLisEDIS ExTERNI ATUS ANGULO 3Tir INTERNO ARTICULATUS.  — 
Fam. I. GowoPLACIDE, vel GnAPSOIDEA CANCEIDIOA. Gen. Eucrate De Haan, 
Curio H. (Pseudorhombila, Edw.), Gonoplaz: Leach. 
2. AnTIcULUS MAXILLIPEDIS EXTERNI ATUS ANGULO JTII INTERNO NON ARTICULATUS. 
* 
Fam. II. MacRoPHTHALMIDE. 
Sub-fam. 1. Macrophthalminz.— Gen. Clezstostoma, De H., Maerophthalius 
Latr. 
Subfam. 2. Ocypodinz.—Gen. Ge/as?mus, Latr., Helecus, Dana (Gelasimum 
cordiformem amplectens), Ocypoda, Fabr., Scopinera, s H. 
Subfam. 3. Dotinz.—Gen. Dozo, De H. 
Fam. III. Gaarsipx. 
Subfam. 1. Grapsine.—Gen. Pseudograpsus, Edw., Eriocheir, De H. (Utica, 
White), P/atynotus, De H., Brachynotus, De H., Trichopus, De H. (Varvaa, 
Edw.), quorum maxillipedibus externis vix hiantibus ; Gzapsws, Lamk., Gono- 
arapsus, Dana (Graps. cruentatum,messor, etc., amplectens), P lanes Leach (Naz- 
tlograpsus, Edw.), Hemigrapsus, Dana (Cyclograpsus partim, Eew.), Cyrto- 
grapsus, Dana,—maxillipedibus externis rhomboidicé hiantibus. 
Subfam. 2. Sesarminz.—Gen., Sesarma, Say (Pachysoma, De H.), Sarmatium, 
Dana,—quorum, articulo maxillipedis externi 3tio apicem rotundato ; Cyclograp- 
sus, Edw. (Gaathochasmus, M?Leay), Chasmagnatlus, De H., Helice, De LH.,— 
quorum articulo maxillipedis externi 3tio apicem truncato et sepe excavato. 
Subfam. 3. Plagusinz.—Gen. HM A je H. (Plagusiam clavimanam 
amplect), Plagusia, Latr. 
Fam. IV. GzgcaRciINIDzE. 
Subfain. 1. Ucainzg.—Gen. Ucz, Leach, Gecarcinucus, Edw., Cardisoma, Latr. 
Gecarcoidea, Edw. 
Subfam. 2. Gecarcinine.—Gen. Gecarcinus. 
Fam. V. PriNNoTHERIDE. 
Subfam. 1. Pinnotherinze.—Gen. Pizzotherz, Latr., Fabe, Dana, Xenoph- 
thalmus, White, Xanthasia, White, Pinniza, White, Pinnotherelia, Lucas. 
Subfam. 2. Hymenicinz.—Gen. Hjmenosoma, Leach, Halicarcinus, White, 
Huymenicus, Dana, Elamena, Edw. "E- 
Fam. VI. Mvcriginz.—Genus IMyctiris. 
