OCTTHOID^ : OCTTHOE. 31" 



e, /. Mediterranean. In Ai'gonaut shell, expanded and con- 

 tracted. 



g. Indian Ocean. In Argonaut shell, contracted. Pre- 

 sented by Capt. Sir Edward Belcher, C. B., R. N. 



Shell (Argonauta Abgo) compressed, transversely ribbed on the 

 sides, adorned with unequal bifurcated ribs. Keels two, approxi- 

 mate, tuberculiferous ; tubercles small, very frequent. Aperture 

 compressed, sagittate, truncated in front. 



Argonauta Argo Linn. Syst. Nat. 10, edit. 708. n. 231., Mus. Lud. 

 Ul. 548. n. 148., Syst. Nat. 12. ed. 1161. n. 271. ; Born, Ind. 

 Mus. CcBS. 119. A. 1., Test. 140, Vign. 139.; Gmel. Syst. Nat. 

 3367.; Brug. Enc. Meth. Vers. i. 122.; Walfen, Nov. Act. 

 Phys. Nat. Cur. viii. 23o.; Olivi, Zool. Adriat. 129.; Schreibers, 

 Conchylien, i. 1. n. 1.; Turton, Syst. of Nat. iv. 304.; Diwernoy, 

 Diet. So. Nat. iii. 102.; Fischer, Mus. Demidow, iii. 245.; Wood, 

 Zoography, ii. 579. ; Montfort, Conchyl. ii. t. 6, 7. ; Oken, 

 Lehrb. der Zool. ii. 336. ; Brooke's Introd. to Conchol. 90. t. 5. 

 f. 53.; Burrow, Elements of Conchol. 75. t. 12. f. 1. ; Brown, 

 Elements of Conch. Q6. t. 7. f. 18.; Dillwyn, Descr. Cat. i. 333.; 

 Schumacher, Ess. d!un Nouv. Syst. 268. ; Rcuizani, Consid. su i 

 Moll. Cefalop. del Argon in Opusc. Scient. et Alem. di Stor. 

 Nat. dec. 1. p. 85. t. 6. f. 1.; Lamarck, Anim. s. Vert. 2d edit. viii. 

 652. n. 1.; Sowerby, Genera of Shells ; Ferussac, Diet. Class, i. 

 552. n. 2.; Mawe, Linn. Syst Conchol. 79. t. 18. f. 1.; De 

 Martins, Reize nach Venedig, ii. 438. ; Wood, Ind. Test. 62. t. 

 5. f. 1. 2d edit. t. 13. f. 1. ; D'Orb. Prodr. 47. n. l.j Feruss. 

 Not. sur VAnim. du Genre Argonaute, in Alem. Soc. d'Hist. 

 Nat. Paris, ii. 160. t. 14.; Poli, Mem. sid Nautil. o Argon. Arg. 

 VAntologia, 58., Test, utriusq. Sicil. iii. 1. t. 40. to 43., 

 Ann. of Philos, 1825, 152. ; Payradeau, Cat. Moll. Corse, 172. 

 n. 348. ; Risso, Hist. Nat. Eur. Merid. iv. 4. ; Blainville, Diet. 

 Sc. Nat. xliii. 212., Malacolog. 494. ; Rapp, Ueher die Natur- 

 wiss. Abhand. i. 67. t. 2. f. 1, 2. ; Maiiriani, Giorn. de Fisica, 

 ix. 390. ; Broderip, Zool. Joum. iv. 57. and 224. t. 3. ; Costa, 

 Cat. de Test. n. 1. 61. ; Delle Chiaje, Mem. sul. Stor. Nat. ii. 

 219. ; Blanchart, Bidlet. Soc. Linn. Bord. iii. liv. iv. 195. ; 

 Eichwald, Zool. Spec, ii, 34. ; Guerin, Iconog. Reg. An. Moll. t. 

 1. f. 3. a. 6. ; Philippi, Enum. Moll. Sic. 240.; Potier et Mi" 

 chavd. Gal. de Douai, 2. n. 1. ; D'Orbigny, Moll, des Antilles, i. 

 24. n, 5, ; Reeve, Conch. Syst. ii, 305. t. 300. 



Nautilus papyraceus Martini, Conchyl. Cab. i. 230. t. 17. f. 157.; 

 Shaiv, Nat. Miscell. iii. t. 101. ; Cubieres, Hist, abreg. des Coq. 

 43. t. 4. f. 6. 



Argonaute papyrace Bosc, Buff, de Deterv. Coq. iii. 261. t. 27. £ 

 6. ; Montfort, Buff, de Sonnini, Moll. 119. t. 35. 



c 4 



