304 CRUISE OF THE BARRERA 



proceeded first to the island fort, "La Forteleza 

 de la Reina Amalia," where a quantity of Cerion 

 (C. mumia hondensis) was gathered. These 

 white pupagform shells clung to the bushes in 

 astonishing abundance, as though a part of the 

 vegetation itself. Besides these, we were fortu- 

 nate in securing a good representative series of the 

 coastal strip land-shells including Urocoptis, Subu- 

 lina, Pupoides, and Thysanophora. The rocks of 

 the island littoral, deeply concaved at the water's 

 edge by wave action, offered a tempting field for 

 marine work and a portion of our party remained 

 to explore them. The Patron and I crossed to 

 the western entrance of the harbor to examine 

 the lighthouse hill, while Bartsch and Greenlaw 

 continued in the launch to the outer eastern shore 

 of the harbor entrance to copper-sulphate the tide 

 pools. 



We found ourselves within a scrub forest grow- 

 ing apparently out of the solid reef limestone. 

 Traversing this, we emerged into an open cane 

 field, beyond which rises the hill. The upward 

 path is cut through a very dense jungle of small 

 trees to a clearing on top. In these woods one 

 hears the continual rustle of myriads of hermit 



