Bururi Long-Fingered Frog (image) California Academy of Sciences Caption The Bururi long-fingered frog (Cardioglossa cyaneospila) from Burundi is about 1.5 inches long with a black and bluish-gray coloration. Credit David Blackburn Usage Restrictions May only be used in connection with the associated press release. 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.