OCYTHOLD^ : OCYTHOE. 31 



e, f. Mediterranean. In Argonaut shell, expanded and con- 

 tracted. 



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

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



Shell (Akgonauta Argo) compressed, transversely ribbed on the 

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

 mate, tuberculif'erous; 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. Cces. 119. a. 1., Test. 140, Vign. 139.; Gmel. Syst. Nat. 

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

 Phys. Nat. Cur. viii. 235.; Olivi, Zool. Adriat. 129.; Schreibers, 

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

 Diet. Sc. Nat. iii. 102.; Fischer*, Mus. Demidow, hi. 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. 65. t. 7. f. 18. ; Dillwyn, Descr. Cat. i. 333.; 

 Schumacher, Ess. dun Nouv. Syst. 268. ; Ranzani, Consid. su i 

 Moll. Cefalop. del Argon in Opusc. Scient. et Mem. 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. 1.; Feruss. 

 Not. sur I'Anim. du Genre Argonaute, in Mem. Soc. d'Hist. 

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

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

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

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

 Sc. Nat. xliii. 212., Mulacolog. 494. ; Rapp, Ueber die Natur- 

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

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

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

 219.; Blanchart, Bullet. 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- 

 chaud, 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.; 

 Shaw, 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. f. 

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



c 4 



