6 



GekusIX. Nautilus. 



will be difficult to affign them any other mode of progrelilorf- 

 All j in urn, travellers who have mentioned them agree in fuppofmg 

 Iherfi to be pelagian, or living out at fea, as only their empty fhelis 

 fire found near or on the fhore. 



78* ^ 8cfobiculatus-*--L , Etang---Pond*--New Guinea — Nautilus 

 Scorbiculatus Soland. Very rare. 



79* Umbilicatus — Le Nombril— tfmbilicated, or Navel-like— 

 Extremely fcafce, and is prefumed to be the only one of the- fpecies 

 in this country* It is diverted of the external coat, to, Anew 

 the pearly one* Whst^m, C Q< ^ a ^ t f~^^> ^w^a^ ? 



Genus X, ARGONAUTA—Naittille Papirace- -Paper' 



Sailor, 



$0. Corrugata— a. imalated, or without wings ; b< alated, or 

 winged— -La Ridee---Wrinkled— Mediterranean and Eaft Indies--* 

 Argonauta Argo Linn. Rare. M<***4^&~, J-r^U/rvtp 



Si. Nodofa— -La Noueufe--Tuberculated, or Studded— Cape 

 of Good Hope- - Argonauta Nodofa Soland. Rare* 



82. Hians — L'Ouvert — Open — - China --- Argonauta Hians 

 Soland. Very rare. 



83. Navicula-— La Gondole— -Gondola— -China— Argonauta 

 Navicnla Soland. Extremely fcarce. 



84. Vitrea— Le Vitree, ou La Lanterne—GlafTy, or Lantern- 

 Guinea ?— Only one other of this extremely delicate and curious 

 fpecies is known irt Europe, which was in the poifeffion of the 

 late celebrated Mr. Lyonet, of the Plague, whofe fine collection 

 of fhells was iafl year fold there. The extreme point, of the beak 

 •of Mf. Lyonet's fpecimen was not fo complete as M. Calonne's. 



The Species of the Genus Argonauta are efteemed as fome of the 

 rnofl curious of the Teftacea, whether we regard the manners of the 

 animals which inhabit them, or the delicacy and elegant form 

 of their fhells. Like fhofe of the Nautilus family, they fwim. 

 on the furface qf the waves, each fpreads a thin film for a fail* 

 srtd puts forth arms, three on each fide, which ferve for oars, in 

 which manner they glide along, but fink inftantaneoufly if but a 

 fhadow pafs over them. The firil idea of the art of navigation 

 is fuppofed to have been taken from thefe little failors, and it is 

 to this family, one fpecies of which is certainly the Nautilus 

 of the ancients, that the famous Mr. Pope alludes, in thofe well- 

 known lines of his " EiTay on Man*" 



" Learfl of the little Nautilus to fail, 

 " Spread the thin oar, and catch the driving gale." 

 The fhells of the Paper Sailor are not chambered, as the Nautili 

 sire, nor are they pearly within. 



Gftttfs XI. BULLA — Bulle D'Eau— Bubble, or Dipper. 



85* Dubia — L'Incertaine — Doubtful — Amboyna — Very rare. 

 The animal of the Bulla^ genus is much too large to be 



all 



