original descriptionGistel, Johannes [Nepomuk Franz Xaver]. (1848). Naturgeschichte des Tierreichs: für höhere Schulen. 1-216, i-xvi, pls. 1-32. Stuttgart. Scheitlin & Krais., available online athttps://www.biodiversitylibrary.org/item/175526 page(s): 176 [details]