CLIPPERTON ISLAND DECAPODS—CHACE 631 
endemic, and none are thus far known to be pantropical, although 5 
of them have been recorded from the Atlantic. Present incomplete 
information‘ indicates that all 5 of the species that may occur in the 
Atlantic are also known from Hawaii or the western Pacific, and 
only 1 of them has been found in the eastern Pacific; in other words, 
r ~y 
Southeast Africa 
Western Pacific 
Tres Marias Is., 
Western Atlantic 
Red Sea 
“ 
° 
a) 
o 
o 
© 
° 
> 
° 
c 
Galapogos Is. 
Boja California 
to Ecuador 
West Africa 
| Indian Ocean 
Ponulirus penicillatus 
Alpheus Jottini 
Boe Alpheus pacifieus 
: OE ; 5 Synalpheus charon 
cea : vad Brachycaorpus biunguiculatus . : d 
Lysmata frisetocea 
Horpiliopsis depressus 
Alpheus poracrinitus 
Alpheus bouvieri 
Hippa pacitica 
e Alpheus clippertoni 
eee 2 ; 
Callianassa placida 
Synalpheus biunguiculatus 
Processa hawa/ensis 
Palaemon gladiator 
Metaopenaeopsis kishinouyei 
Calcinus explorator 
Petrolisthes haigae 
Petrolisthes glasselli 
Pachycheles biocellatus 
Synalpheus nodbilii 
Pomagnathus corallinus 
Pagurus flepidus 
Calcinus californiensis 
L st 
Ficure 7.—Geographic distribution of the non-brachyuran decapod crustaceans of Clipper- 
ton Island. 
