References
- Lydekker . 1916 . Catalogue of Lingulates , v : 24 – 24 .
- Smithsonian Miscellaneous Collections , lxi ( 22 ) 3 – 3 .
- Smithsonian Institution . U.S. National Museum , 134 – 134 . Bull. 99
- 1845 . Jardine's ‘Naturalists' Library , xx : 327 – 327 .
- Sclater . 1865 . P. Z. S. , Photographs and sketches were taken, which have since been lost pl. xxii
- 1865 . P. Z. S. , : 417 – 419 . p. 422
- 1865 . P. Z. S. , : 420 – 420 .