36d — WORMS. TESTACEA. 7o. Argonauts. 
Bilata. Shell very ftraight; thin and perpendicularly ftriate; with 
traniverfe fpinous wrinkles at the lower margin, 
Inhabits Gualt. teft. tab. 793 fig. C. 
Probably not a diftinct ipecies. 
70. ARGONAUTA. Animal a Sepia or Clio: 
Shell univalve; fpiral; involute, membra- 
naceous; 1-celled. 
Argo. Keel ot ridge of the fhell (lightly toothed each fide: 
Lister conch. tab. §54,555-. Loch. Muf. Bel. t. ig. 
Bonan. recr. and Muf... Kirch. 1. fig. 13. 
Rumpf. Muf. tab. 18. fzg. 104. A, B. 
Gualt. tefl. tab. 11. A, B, t. 12. A, B, C. 
Olear Muf. tab. 32« f. 40 Leffer teft. 1. 1. n. 6. 
Klein oftr. tab. 1. fig. 3. Murray teft. t. 1. f. 8. 
Argenville conch. tab, 5. A—C. Zoom. ti 2. f. 25 38 
Muf; Gottwald. tabs 40, fig. 272—274. 
Seba Muf. 3. tab. 84. fig. 4—12: 
Ginanh. adr. 2- tab. 3 Sigs 29s , 
Knorr delic. tab. B. i. fig. 3145 Veegr. 1. fab. 2. F. 1.2. 4 fal. 
99. f. 1, and 6. tab, 31. ; 
2. Martin conch. 1. tab. 17. fige 157. 
3. Martin conch. 1. tab. 7. fig. 158, 159: 
4- Martin conch. 1. tab. 18 fig. 160. 
5s Martin conch, 1. vign. 8, fig. 2. 
Inhabits the Mediterranean and Indian Oceak, and i$ the famous 
Nautilus, fuppofed in the early ages of fociety; to have firft 
taught men the ufe of fails: when it means to fail, it dif- 
charges a quantity of water; by which it was made heavier 
than the fea-water, and rifing to the furface, ere&ts its arms; 
and throws out a membrane between them,. by which means it 
is driven forwards like a veflel under fail; two of the arms it 
hangs over the fhell, to ferve as oars ot as a tudder. 
Shell white or yellowifh, with {mooth or knotty {tris or ribs; 
which are fometimes forked; the keel generally brownifh. 
Vitreud. Keel of the fhell toothed in the middles 
Argenville Zoomorph, tab. 10; fig. B. 
Martin. conch. 1. f. 239. tab, 18, fig. 165. ‘ 
Inhabits A very rare fpecies. Shell conic, traníveríely 
ribbed, with a convex keel: aperture oval. 
Cymbium, Keel of the fhell wrinkled and without teeth. 
Gualt. tefi, tab. 12. fig. D. 
Martin, conch. 14 tab. 18. fiz, 1018 
Inhabits 
a 
