References
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- Owen . 1832 . Memoir on the Pearly Nautilus , Macdonald, Phil. Trans. 1855.
- See Huxley Anat. of Invertebrates 526 526 after Garner, Trans. Linn. Soc. 1836.
- Hancock . 1852 . Ann. & Mag. Nat. Hist. ,
- Beneden . 1838 . Mem. Acad. Brussels , xi
- 1841 . Annales du Musée ,
- 1843 . Ann. & Mag. Nat. Hist. , xii
- 1838 . Mémoire sur l'Argonaute . Acad. Brussels , xi
- 1856 . Wis. en Natuurk. Verh. der Koninkl. Akad. deel iii. , and Ann. & Mag. Nat. Hist. 1856.
- Bronn's Klassen und Ordnungen 1865 iii
- 1879 . Proc. Zool. Soc. , Jan.