§ 230. ' THE CEPHALOPODA, 269 



dis, as well as the females on which they are found, will admit the cor- 

 rectness of the preceding statement, and, also, must have perceived the very 

 remarkable abortiveaess of the males of Argonauta and TremoctopusP^ 



Family: Nautiiina. 



Genera : Nautilus, Spirula. 



Family: Octopoda. 



Genera : Argonauta, Tremoctopus, Octopus, Eledone. 



Family : LoiiGiNA. 



Genera : Sepia, Loligo, Onychoteu^his, Sepioteuthis, Ommastrepkes, Loli- 

 gopsis [Perothis), Cranchia, Rossia, Sepiola. 



BIBLIOGRAPHY. 



Swammerdamvi. Zergliederung der spanischen Seekatze (Sepiae mariss, 

 in the Bibel der Natur. Leipzig, 1752, p. 346, Taf. L.-LII. 



Needham. An Account of some new Microscopical Discoveries. Lon- 

 don, 1745, or the same in French. Leide, 1747. It contains the anatomy, 

 of Loligo vulgaris. 



Cuvier. Memoire sur les Cephalopodes et leur Anatomic, in»the Mem. 

 sur les Mollusques, loc. cit. PI. I.-TV. 



Brandt. Medizin. Zool. II. p. 298, Taf XXXI.-II. 



Ou-en. Memoir on the pearly Nautilus. London, 1832 (in the Isis, 

 1835, p. 1, or in the Ann. d. 8c. Nat. 1833, XXVIIL p. 87). Also 

 description of some new and rare Cephalopoda, in the Trans, of the Zool. 

 Soc. II. 1841, p. 103 ; and the Art. Cephalopoda, in the Cyclopaedia of 

 Anatomy, I. p. 517; also the twenty-third of the Hunterian Lectures, on 

 Cephalopods with chambered shells, 1843. 



Grant. On the structure and characters of Loligopsis, in the Trans, of 

 the Zool. Soc. I. 1835, p. 21, PI. II. ; also on the Anatomy of the Sepiola 

 vulgaris, Ibid. p. 77, PL XL (in Isis, 1836, p. 389, Taf X. fig. 4-10). . 



Rathke. Perothis, ein neues Genus der Cephalopoden, in the Mem. 

 presentes a I'Acad. imper. de St. Petersberg, II. 1835, p. 149, Taf I. 11. 



Van Beneden. Mem. sur I'Argonaute, in the Nouv. Mtm. de I'Acad. 

 Roy. des 8c. et belles-lettres de Bruxelles, XL 1838, or in the Exer. zoot. 

 Fasc. I. 1839, PI. I.-V. 



Ferussac and D'Orbigny. Hist. nat. gen. et particuliere des Mol- 

 lusques. Cephalopodes acetabuliferes. Paris, 1834. 



Valenciennes. Nouv. Recherch. sur le Nautile flambe, in the Arch, du 

 Museum d'hist. nat. IL 1841, PL VIII.-XI. 



Kolliker. Entwickelungsgeschichte der Cephalopoden. Zurich, 1844. 



3 I am indebted to Kolliker for the examination have been preserved in alcohol a long time, yet I 



of these iiidividuals of HerAocotylus tremoctn- was able to assure myself of the correctness of 



poriis, of which I found two in one and the same many of KdUiker''s statements, and thereby to be 



cavity of the mantle of a female. Although they convinced of the real nature of these animals.* 



* [ § 230, note 3.] See my note below under § 231, note 6. — Ed. 

 23* 



