NATURAL HISTORY. 



Plate 



210. 



211. 



i8. 



19, 19,19. 



20. 

 21. 



212. 



Lettered Cokchology, Elementary' Plate II. 



Fig. 11. The part denominated the Pillar or Co- 

 lumella, as in Murex 

 12, 12, 12. the Aperture, as in Murex, He- 



lix, Ner'ita 

 13, 13, 13. the Lip, as in Valuta 



14. the Beak, as in Murex 



15. the Canal, as in Murex 



16. 1 6. the Umbilicus, as in Trochus, 



Nerita 



Lettered Coxchology, Elementary Plate III. 



Fig. 17,17. The part denominated the Operculum, 

 as in Trochus, Murex 



the Involuted Spire, as in Nau- 

 tilus 



the Chambers, as in Nautilus, 

 the Chambered Patella, and 

 the Ammonite, (found fofill) 



the Siphunculus, as in Nautilus 



the Epidermis, as in Turbo 



Bivalves. 



Fig. 22. The part denominated the Bafe of a Bivalve 

 Shell, as in Venus 



23. the Summit, as in Patella 



24. 24. the Beak, as in Chama, (Cor.) 



Mytilus 



25. the Sides, as in Venus 



Lettered Conchology, Elementary Plate IV. 



Fig. 26. The part denominated the Margin, or Limb, 

 as in Tellina, (cornea) 



the Difl<, as in Venus, Tellina 



the Pofterior Slope, as in Mac- 

 tra, Tellina, Venus 



the Lunule, as in Venus, Tel- 

 lina, (a. & b.) 



the Cartilage, or Hinge, as in 

 Tellina, Venus 



the Ears, as in Peclen, {^OJlrea, 

 Linn.) 



the Ligament Perforation, 

 (Aperture in the upper valve 

 of the Shell through which 

 the ligament of the animal 

 partes, by which it adheres to 

 extraneous fubftances, as in 

 Anomia') 



213. Lettered Conchology, Elementary Plate V. 



Length and Breadth of a Bivalve 

 Shell, as in Solen, Mytilus 

 the Infide of a Bivalve Shell, 



as in Mytilus, {^rugofus) 

 the Hinge, Suture, and Procefs. 

 Denticlated future, as in 

 Area. Spoon-fhaped procefs, 

 as in Mya, (Pratenius, Donony. 

 Brit. Shells) 



Fig. 34,34. The 



3v 

 36. 



Plate 



213. Fig. 37. The part denominated the Cicatrix, Impref- 



fion of the Spaces tc which 



the animal-inhabitant of the 



Shell adheres 

 38,38. the ByfTus, or Beard, .is in 



Mytilus 



MuLTIVALVES. 



^'&' 39> 39- The part denominated the Bafe of a 

 Multivalve Shell, as in Lepas 



40.40. the Ligament, as in Lepas, 



i^anatifera) 



41.41. the Operculum, as in Lepas, 



{Balanus vulgaris) 

 ^*^ Vide article Conchology, which thefe Elementary Plates 

 are intended to illujlrate. 



Okder 4. Zoophytes. 



Genus Tubipora. 

 214-. Lettered Zoophytes, Genus Tubipora, Plate I. 

 Fig. I. Tubipora mujica 



Genus Madrepora. 



* Conjijling of one Star. 



Fig. 2. Madrepora fungites 



3 . Madrepora pileus 



4. Madrepora Agathus 



5 . Madrepora foliaceus 



*** With numerous united Stars. 



215. Lettered Zoophytes, Plate II. 



F]g. I. Madrepora labyrinthica 



2. Madrepora phrygia 



3 . Madrepora gyrofa 



4. Madrepora areolata 



**** Aggregated di/lina Stars and porulous tuberculated pro- 

 minent Undulations, 



Fig. 5. Madrepora ananas 



***** Ramofe, -with dijlitia Stars, and tuberculated porulcDs 

 Undulations. 



Fig. 6. Madrepora porites 



Genus Isis. 



216. Lettered Zoophytes, Genus Ifis, Plate I. 

 Fig. I. Ifis Hippuris 



2. IJis coccinea 



Genus Antipathes. 



Fig. 3. Antipathes fulpinnata 

 4. Antipathes Myriophylla 



Genus Gorgonia. 



217. Lettered Zoophytes, Genus Gorgonia, Plate II. 



Fig. I . Gorgonia kpadifera 



2. Gorgonia ceratophyta 



3. Gorgonia americana 



4. Gorgonia exferta 



S A 2 



