INTERMEDIATE OR CONTINENTAL ZONE. 241 
metrical belt. Lithodes, a shallow-water form in the cold seas of both the 
Northern and Southern Hemisphere, is found in the tropics only at consider- 
able depths. JZunida, too, is a type of world-wide distribution in compara- 
tively shallow waters of the North and South Temperate regions. But it 
reaches its maximum development in moderately deep water (100-300 
fathoms) within the tropics, and one species (Munida stimpsoni) has been 
found in the West Indian region at so great a depth as 1105 fathoms.* 
Xanthodes, Ebalia, Solenocera, and Sicyonia, are littoral or sublittoral genera 
of cosmopolitan range in the warmer seas of the globe. Cymopolia is also a 
genus of extended geographical range, with a vertical distribution from the 
shore to 298 fathoms. Catapagurus has been hitherto known from the east 
coast of North America, 50-300 fathoms, and from the Arafura Sea and the 
Feejee Islands, 28 fathoms; the “ Albatross” species has most affinity with 
that from the Arafura Sea. -dthusa and Pasiphaeia are cosmopolitan genera 
with a bathymetrical range extending from the littoral belt and the surface 
to 1000 fathoms. Anamathia, Uroptychus, Iconaxius, and Aristeus have their 
fullest development in the intermediate zone between 150 and 500 fathoms. 
They are all genera of world-wide range, unless it be Jconaxius, which has 
hitherto been found only on the east and west sides of the Pacific. The 
following genera represented in the material collected by the “Albatross” at 
a depth less than 500 fathoms may be considered as deep-water types which 
overlap the limit of the intermediate belt: Munidopsis, Polycheles, Gly- 
phocrangon, Heterocarpus, Nematocarcinus, Acanthephyra, Benthesicymus, and 
Gnathophausia. 
The following list indicates the genera found below the 500 fathom line ; 
those whose range extended beyond 1000 fathoms are printed in italics : — 
Trachyearcinus. Eryonicus. Peneus (1 species). 
AEthusina. Sclerocrangon. Peneopsis. 
Leptolithodes. Pontophilus. Haliporus. 
Lithodes Paracrangon. Hemipeneus. 
Parapagurus. Glyphocrangon. Benthesicymus. 
Galacantha. Heterocarpus. Gennadas. 
Munidopsis. Pandalopsis. Sergestes ? 
Axius (Iconaxius) Nematocarcinus. Gnathophausia. 
Calastacus. Acanthephyra. Eucopia. 
Nephropsis. Hymenodora. Petalophthalmus. 
Willemoesia. Notostomus. Scolophthalmus. 
Polycheles. Pasiphaeia? Ceratomysis. 
%* Asa result, chiefly, of the dredging expeditions of the last twenty years, the number of known species 
of Munida has been raised from six to about forty-five. 
31 
