32G CEPHALOPODA. 



Class V. CEPHALOPODA. 



Order I. POLYTHALAMIA. 



Genus I. SPIllULA, LaivMrck. 



1. S. Peronii, Lamarck; Martini, Conch, pi. 254. vigii. 11. f. 1-3. 

 Spirilla audralis, Enc. Meth. ; Cormi Ammonis, Martini. 



Genus II. NAUTILUS, Lhmmis. 



1. N. pompilius, Linnaus ; Owen, Memoir on tlie Nautilus, pi. 1-8. 



Nautilus secundus, Aristotle ; Nautilus major, Rumpliius ; 

 Nautilus maximus, D'Argenville. 



2. N. umbilicatus, Linnceus ; Chemn., Concli. v. 10. pi. 137. f. 1274-5. 



Order II. MONOTHALAMIA. 



Genus I. ARGONAUTA, Linnceus. 



1. A. argo, Linnaus; Eeeve, Conch. Syst. v. 2. pi. 300. 



Nautilus Nauplius, Bonani ; Nautilus tenuis, Knorr ; 

 Nautilus j)api/raceus,D'Aj:gen. ; Cymhimn maximum, ^K^\\tx\. 



2. A. cymbium, Linnceus ; Martini, Conch, v, 2. pi. 18. f. 161, 162. 



Carinaria cymbium, Lamarck. 



3. A. haustrimi, Enc. Meth. v. 2. p. 70. 



Argonauta argo, var., Linnaeus. 



4. A. nitida, Lamarck; Martini, Conch, v. 1. pi. 17. f. 158, 159. 



5. A. raricosta, Blainville, Enc. Meth. v. 3. p. 69. 



Argonauta Cranchi, Leach. 



6. A. tuberculosa, Lamarck ; Martini, Conch, pi. 17, 18. f. 156, 160. 



Variety, Argonauta gondola, Enc. Meth. 



Printed 1)v Rpeve, Brothers, Kin" William Strret, Strand. 



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