Chap 
Hiftory. dincm connixis ; polytoma veto quss ex pluribus firnul 
adnexis compinguntur.’ 
CONCHOiO'G' Y. 391 
the engravings, which are So. In number, and are exe- Hiftory. 
Classis Prima. Ouae teftacea monotoma 
pl-eflitur. Teftacea monotoma quorum tefta 
vifa eft, in tres familias abeant ; 
funt, alia fpiralia, alia fiftulofa. 
com- 
indi- 
alia enim univalvia 
cuted with great accuracy and elegance. But the de~ ’ 
fcriptions of the genera and fpeciesonly reach the 19th 
plate ; fo that the work which was publifhed in 1780 
is ftill unfinifhed. 
SYSTEM of D’ARGENVILLE. 
Familia I. Tejlaceorum unhahium. Monotoma u- Ib this fy ftem ^ e ll S are divided into four parts. I. 
mvalvia dicimus quorum tefta fimplex eft, m os amplius IL Frefh-water (hells. III. Land-fhells. 
effufa. Gen. 1. Lepas. Gen. 2. Eruca. py^ Foflil-fhells. 
Familia II. Tejlaceorum Jpiralium. Monotoma fpi- 
ralia dicimus teftacea quorum pdrs inferior in fpiram 
contorquetur : horum autem fpirse feu helices exterius 
patent, et ftmpliciter fpiralia dicuntur, vel eorum fpira 
in.tus reconditur, et convoluta dicuntur. 
Divis. 1. Teftacea monotoma ftmpliciter fpiralia, feu 
quorum fpira exterior eft. Gen. 1. Murex. Gen. 2. 
Murex alatus. Gen. 3. Murex aporrhais. Gen. 4. 
Murex venereus. Gen. 5. Murex pyramidalis. Gen. 6. 
Buccinum. Gen. 7. Buccino- murex. Gen. 8. Purpu- 
ra. Gen. 9. Buccino-purpura. Gen. 10. Peribolus. 
Gen. 11. Turbo. Gen. 12. Verticillus. Gen. 13. 
Cochlea. Gen. 14. Cochlea terreftris. Gen. 15. Ce- 
ratites. Gen. 16. Cochlea marina. Gen. 17. Nerita, 
Gen. 18. Auris marina. 
Divis. 2. Teftacea monotoma fpiralia convoluta, quae 
cochleam interiorem habent vix foris eonfpicuam. 
Gen. 1. Concha- venerea. Gen. 2. Concha perftca. 
Gen. 3. Nautilus. Gen. 4. Conchilium. 
Familia III. Tejlaceorum Jifluloforum. Teftacea 
monotoma fiftulofa feu tubulofa, ut ex nomine patet, 
fiftulae in modum tenuantur. Gen. I. Dentale. Gen. 
2 . Entale. Gen. 3. Tubuli marini. 
Classis Secunda, quae teftacea ditoma continet. 
Teftacea ditoma femper ex duabus teftis ad cardinem 
articulatis compinguntur, et vel arfle undique claudun- 
tur, vel utrinque hiant y unde in duas familias dividi 
poffunt. 
Familia I. Teftaceorum ditomorum quae arfle clau- 
duntur. Gen. 1. Concha. Gen. 2. Conchula. Gen. 3. 
Oftreum. Gen. 4. Mytilus. Gen. 5. Pinna. Gen. 6. 
Perna. Gen. 7. Pholas. Gen. 8. Pedlen. Gen. 9. 
Peftunculus. 
Familia II. Teftaceorum ditomorum quae femper 
hiant. Gen. 1. Chamae. Gen. 2. Solen. 
Part I. Sea-fhells are divided into 3 Claffes. 1. Uni- 
valves. 2, Bivalves. 3. Multivalves. 
Clafs I. contains 15 families, viz. 1. Lepas. 2. Oreil- 
les de mer. 3. Tuyaux et Vermiffeaux de mer. 4, 
Nautiles. 5. Lima^ons a bouche ronde. 6. Lima- 
qons a bouche demi-ronde. 7. Limaqons a bouche a- 
platie. 8. Cornets ou Volutes. 9. Olives ou Cylin- 
dres. 10. Rochers ou Murex. 11. Tonnes. 12. 
Porcelaines. 13, Buccins. 14. Pourpres. ij. 
Vis. 
Clafs II. contains 7 families, viz. 1. Huitres. 2. Ca- 
rnes. 3. Tellines. 4. Moules. 5. Cceurs. 6. Peignes. 
7. Manches de couteaux. 
Clafs III. conftfts of 7 families, viz. I. Ofcabrions, 
ou lepas a huit pieces. 2. Ourftns. 3. Glands de 
mer. 4. fouffe-pieds. 5. Conques anatiferes. 6. 
Pholades. 7. Tuyaux de mer multivalves. 
Part II. Frefh-water fhells are divided into 2 Claffes, 
1. Univalves. 2. Bivalves. 
Clafs I. contains 8 families, viz, 1. Lepas. 2. Nauti- 
les ou cornes d’ammon. 3, Limagons a bouche 
ronde. 4. Lima cons & bouche demi-ronde. 5. Li- 
masons a bouche triangulaire. 6, Tonnes. 7. Buc- 
cins. 8. Vis. 
Clafs II. is compofed of two families. 1. Games. 2. 
Tellines. 
Part III. Land fhells, conftituting a fingle clafs, viz. 
Univalves, which contains 6 families; viz. 1. Lepas, 
2. Lima^ons a bouche ronde. 3. Limagons a bouche 
demi-ronde. 4. Lima^ans a bouche aplatie. 5. Buc- 
cins. 6. Vis. 
Classis Tertia, quae teftacea polytoma continet. 
Poly toma, teftacea dicuntur quorum teftae ex pluribus 
partibus vel, articulatis, vel per cartilaginem connexis 
compinguntur ; unde in duas familias abeunt. 
Familial. Eorum quorum partes articulanftiP. Gen. 
J. Echinus. __ 
Familia II. Eorum quorum partes per cartilaginem 
connecluntur. Gen. 1. Balanus. 
S> ... 
OfD’Ar- V. M. D’Argenville in 1742, publifhed at Paris a 
genvilie. treatife on Conchology with 33 plates. A fecond edi- 
tion of the fame work appeared at Paris in 1757. In 
this edition the number of the plates was increafed 1041 . 
A more fplendid edition was publifhed after the death 
of the author, by M. M. de Favanne de Montcerville 
father and fon. This edition is extended to 3 volumes, 
two of which confift of letter prefs, and the 3d contains 
Part IV. Foflil fhells, which confift of 3 claffes. 1. 
Univalves. 2. Bivalves. 3. Multivalves. 
Clafs I. is compofed of 15 families having the fame 
names as the firft clafs of fea-fhells. 
Clafs II. contains 7 families fimilar to the 2d clafs of 
fea-fhells. 
Clafs III. confifts of 5 families, viz. 1. Ourfins. 2. 
Glands de mer. 3. Pouffe-pieds. 4 Pholades. 5. 
Tuyaux multivalves. 
10 
VI. A fyftem of Conchology was publifhed by Klein Of KleiH- 
in 1753, and illuftrated with engravings. In the fame 
work the author enters into an inveftigation concern- 
ing the formation, increafe, and colours of fhells. The 
following is an abridged view of this arrangement. 
SYSTEM 
