Published in Proceedings of The Zoological Society of London, in 1841, in volume 8, pages 36-39

Published in Proceedings of The Zoological Society of London, in 1841, in volume 9, pages 3-5

Published in Proceedings of The Zoological Society of London, in 1841, in volume 9, pages 21-22

Published in Proceedings of The Zoological Society of London, in 1841, in volume 9, pages 97-101