194 CALIFORNIA ACADEMY OF SCIENCES [Peoc. 4th Ser. 



Tagus Cove, Albemarle Island, April 5, 1906. Sea iguanas 

 are common on the rocks, and can be seen feeding on the sea- 

 weed at low tide. They eat with the sides of their mouths, 

 much as a dog would chew a bone. 



Bank's Bay, Albemarle Island, April 9, 1906. Sea iguanas 

 were abundant along the rocks. I saw none brightly colored 

 like those on Hood Island. None of the females had enlarged 

 ovaries, so the breeding season probably is over. I saw a 

 great many nests in the sand. These were little hollows about 

 a foot in dfameter and six inches deep, sloping to a point at 

 the bottom. I could find no eggs. I saw iguanas here in the 

 water more than at any other place. They swim like our 

 water-dogs, (Diemictylus) with the legs carried close to the 

 body, and propelling themselves by sinuous movements of the 

 body and tail. The head and crest to the middle of the body 

 can be seen above the water. 



