<§> 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 abortiveness of the males of Argonauta and Tremoctopus.'^^ 



Family : Nautilina. 



Genera : Nautilus, Spirilla. 



Family : Octopoda. 



Genera : Argonauta, Tremoctopus, Octopus, Eledone. 



Family : Loligina. 



Genera : Sepia, Loligo, Onychoteuthis, Sepioteuthis, Ommastrephes, Loli- 

 gopsis [Perothis), Cranchia, Rossia, Sepiola. 



BIBLIOGRAPHY. 



Sivammerdamm. 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, 174.5, 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 MoUusques, loc. cit. PI. I.-IV. 



Bra?idt. Medizin.Zool. II. p. 298, Taf XXXI.-II. 



Owen. Memoir on the pearly Nautilus. London, 1832 (in the Isis, 

 1835, p. 1, or in the Ann. d. Sc. Nat. 1833, XXVIII. 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, PL 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. II. 



Van Be?ieden. Mem. sur I'Argonaute, in the Nouv. Mem. de I'Acad. 

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

 Fasc. I. 1839, PL 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 Ions time, yet I 



of these individuals of Her.tocotylus trumocto- was able to assure myself of the correctness of 



poilis, of which I found two in one and the same many of K6lliker''s statements, and thereby to be 



cavity of the mantle of a female. Although they convinced of the real natui-e of these animals.* 



* [ § 230, note 3.] See my note below under § 261, note 6. — Ed. 

 23* 



