2o8 Natural History Bulletin. 



red. It frequents bushes where it feeds on insects. Sphic- 

 tyrtiis zvhitci Guer. is red and bronze-green above, but when 

 flying the former color alone shows. It is found In the same 

 situations as the preceding species, but no notes were made 

 of its feeding habits. 



•• None of the few Ortiioptera secured are yet identified.. 

 One large specie? belongs to the Acridiida' and is over twO' 

 inches in length. Another is a Mantis, which, as it was seen 

 in various stages, evidently breeds here. Of crickets a little 

 Tn'dartyliis or allied form was found in a well, and a large 

 brownish species of undetermined genus is found in the caves 

 among the loose rocks on the floors or in crannies far back 

 from the entrance. The antennae are immenselv elongate^ 

 Cockroaches were seen in some numbers. 



•■The paperv nests of two colonies of white ants were seen 

 by the partv on Eleuthera Island. One of these was built on 

 a horizontally projecting branch of a small tree a short dis- 

 tance from the ground; the other was built directly on the 

 ground and was of such girth as to render its packing for 

 transportation impracticable.'' 



We were confined at this station, as at the Dry Tortugas, 

 to shore and shallow- water collecting of marine forms. One 

 of the most striking facts brought out by a survey of the 

 Crustacea from this region is that the littoral and shallow- 

 water species are in a majoritv of cases identical with those 

 found on the other side of the Gulf Stream at the Dry 

 Tortugas. Out of about eighteen species collected at Harbor 

 Island and Spanish Wells, twelve are identical with species 

 from the Tortugas, leaving only one-third the number as- 

 peculiar to Eleuthera. This is quite different from the result 

 of a comparison between the deeper water forms from Havana 

 on the one hand, and the Pourtales Plateau on the other. Out 

 of the thirty-odd species from the Pourtales Plateau, only three, 

 or perhaps four, were found at Havana. Out of the seven 

 found at Havana, only two were found on the Pourtales 

 Plateau proper, one being a shallow-water form. We thus 

 see that there is a much closer relation between the littoral 



