When Charles Darwin visited the Galapagos islands did he name the animals that he found?

During his visit to the Galápagos Islands in 1835, Charles Darwin did not formally name the animals he encountered. Instead, he documented and collected various specimens, which later contributed to his theory of evolution by natural selection. The observations he made about the unique species, such as finches and tortoises, were crucial in shaping his scientific ideas, but the formal naming of many of these species occurred later by other naturalists.