From a developmental framework, relations among list reading fluency, oral and silent reading fluency, listening comprehension, and reading comprehension might be expected to change as children's reading skills develop. We examined developmental relations among these constructs in a latent-variable longitudinal study of first and second graders. Results showed that list reading fluency was uniquely related to reading comprehension in Grade 1, but not in Grade 2, after accounting for text reading fluency (oral or silent) and listening comprehension. In contrast, text reading fluency was uniquely related to reading comprehension in Grade 2, but not in Grade 1, after accounting for list reading fluency and listening comprehension. When oral reading fluency and silent reading fluency were compared, oral reading fluency was uniquely related to reading comprehension after accounting for silent reading fluency in Grade 1, whereas silent reading fluency was uniquely related to reading comprehension after accounting for oral reading fluency in Grade 2. (Contains 6 tables and 3 figures.)