26 Geographical Distribution of. Crustacea. 
5. Corystoidea.—Kraussia, CEidia, Dicera. 
6. Anomoura.—Caphyra, Raninoides, Ranina, Notopus, Lyreidus, 
Cosmonotus, Lomis, Diogenes, Aniculus, Birgus. 
". Macroura. — Lauttiedia: Glaucothoe, Palliauides Callisea, The- 
nus, Ibacus, Astacoides, Paranephrops, Cyclorhynchus, Atyoida, Alope, 
CEdipus, Harpilius, Anchistia, Paleemonella, Hymenocera, Oplophorus; 
Regulus, Stenopus, Spongicola, Acetes, Eucopia. 
4. GENERA COMMON TO THE AMERICAN AND AFRICO-EUROPEAN 
DIVISIONS, BUT NOT IN THE THIRD, OR ORIENTAL. 
l. Maioidea.—Hyas, Herbstia, Leptopodia, Stenorhynchus. 
2. Cancroidea.— Atelecyclus. 
3. Anomoura.—Munida, Grimothea. 
4. Macroura.—Homarus. 
9. GENERA COMMON TO THE AFRICO-EUROPEAN AND ORIENTAL 
DIVISIONS, NOT YET FOUND IN THE OCCIDENTAL. 
Maioidea.—lnachus, Doclea, Maia, Achzaeus, Lambrus. 
. Cancroidea.—Actsea, Actm;odes, "T'halanidet Portunus, 'Telphusa. 
Leucosoidea.—Oycloes, Ebalia, Dorippe. 
. Anomoura.—bLatreillia, Cy mopolia; Remipes. 
. Macroura.—Nika, Lysmata, Caridinia. 
QU D RN 
6. GENERA COMMON TO THE THREE DIVISIONS. 
1. Maioidea.—Pisa, Mithrax (mainly Occid.), Acanthonyx. 
2. Cancroidea.—Xantho, Panopsus (mainly Occidental), Pilumnus, 
Eriphia, Lupa, Amphitrite, Carcinus, Platyonychus. 
3. Grapsoidea.—(Grapsus, Goniograpsus, Sesarma (sparingly Euro- 
pean), Acanthopus, Plagusia, Pinnothera, Calappa. 
4. Anomoura. —Dromia (sparingly Occid.), Albunza, Porcellana, 
Lithodes, Paguristes, Bernhardus, Pagurus (mainly Orient.), Clibana- 
rius, Galathea. 
5. Macroura.—Gebia, Scyllarus, Panulirus, Palinurus, Asinius. 
Crangon, Alpheus, Betzus, Hippolyte, Pandalus, Paleemon, Sicyonia, 
Pencus. 
The following are lists of. species common to two or more of 
the three divisions. 'l'hey may be much changed by farther 
study, through the discovery that the specimens from distant 
localities are not conspecific. Should this happen, there is a 
relation indicated based on their close similarity, which is im- 
portant. 
l. sPECIES STATED TO BE COMMON TO DIVISIONS A. AND B., OR THE 
AMERICAN AND THE AFRICO-EUROPEAN WATERS. 
Hyas coarctata: Massachusetts and Long Island, in United States ; 
-France ; England; Shetlands. 
Leptopodia sagittaria : Canaries ; West Indies ; Valparaiso. 
Panopeus Herbsti;: Mediterranean ; Key West, South Carutinm, 
and New York in United States. 
