Skull Comparison (IMAGE) American Museum of Natural History Caption Lateral views of the skull and left dentary of A, the holotype of Synemporion keana, compared with B, the Hawaiian hoary bat (Lasiurus cinereus semotus). Credit © American Museum Novitates Usage Restrictions Can be used with appropriate credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.