Chú thích Philodryas

  1. 1 2 Philodryas (TSN 700309) tại Hệ thống Thông tin Phân loại Tích hợp (ITIS).
  2. 1 2 Boulenger GA (1896).Catalogue of the Snakes in the British Museum (Natural History). Volume III., Containing the Colubridæ (Opisthoglyphæ and Proteroglyphæ)... London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). xxiv + 727 pp. + Plates I-XXV. (Genus Philodryas, p. 127).
  3. ↑ "Philodryas ". The Reptile Database. www.reptile-database.org.
  4. ↑ http://www.philodryas.com
  5. ↑ Freiberg M (1982). Snakes of South America. Hong Kong: T.F.H. Publications. 189 pp. ISBN 0-87666-912-7. (Genus Philodryas, pp. 106-107).