NATURAL HISTORY. 



Plate* 



IM. Tig.3,^- ffflothuria/u/us 

 c. Holothuria pencillus 



6, 7, 8. Holothuria fquamata. No. l. upper fur- 

 face : No. 2. lower furface, in a quiefcent 

 ftate: No. 3. with the tentacula expanded 

 o, 10. Holothuria inharens. No. i. with tenta- 

 cula expanded : No. 2. tentacula retrafted 



Genus Sepia. 



185. Lettered Vermes, Order Mollufca, Plate VI. 



Fig. I. Sepia oSofus 



2, 3. Sepia media. No. I. upper furface : No. 2. 

 under furface 



Genus Medusa. 



186. Lettered Vermes, Order Mollufca, Plate IV. 

 Fig. I 



2. Medufa pulmo. No. I. f upper furface. 

 No. I. under furface 

 3. Medufa campanula 



Genus Asterias. 



1 87. Lettered Vermeology, Vermes, Mollufca, Plate III. 

 of Ailerias. 



AJlerias Caput medufa 

 yiflerias peHinata 

 Aflerias fphicrulata 



AJierias ophiura, a upper furface, h under 

 furface 



Fig. I. 

 2, 



3 



4' 



Order Testacea. 



Genus Chiton. 



183. Lettered Conchology, Genus Chiton, Plate IX. 



Fig. 1,2. Chiton arundo 



Chiton aculeatus. No. I. upper furface. No. 2. 

 infide 



3. Chiton fquamofus 



4. Chiton oUvaceus, No. I. outfide, No. 2. in- 



fide, fmall 



Genus Lepas. 



189. Lettered Conchology, Genus Lepas, Plate XIII. 



Fig. I. Lepqs anatifera 

 2. Lepas anferifera 



Genus Pholas. 



190. Lettered Conchology, Genus Pholas, Plate VIII. 



Fig. I, 



2, 3. Pholas daBylus, No. I. fide view ; 

 No. 2. the two lateral valves united at the 

 hinge; No. 3. infide of one of the lateral 

 valves 



Pholas coflata 



6, 7. Pholas flriata. No. i., theloweft figure, 

 exhibits a fide view of this fhell, as com- 

 pofed of feveral valves ; No. 2., the upper- 

 moft figure, fhews the teftaceous valves at 

 the top or hinge fide of the fhell ; No. 3. 

 the manner in which this fpecies of Pholas 

 buries itfelf into (hips' bottoms or other 

 timber 



Plate 



Genus Mya. 

 193. Lettered Conchology, Genus Mya, Plate XI. B. 

 Fig. I. Mya truncata 



Genus Solen. 



191. Lettered Conchology, Genus Solen, Plate (no 



number) 



Fig. I . Solen grandis, the loweft figure in the plate 

 2, 3. Solen radiatus. No. i. outfide. No. 2. in- 

 fide, f mailer fhell 

 . 4. Solen flrigilatus 



5. Solen vagina. No. I. outfide, No. 2. of a 



younger fhell, (hewing the teeth of the 

 hinge 



6. Solen enjis 



Genus Tellina. 



192. Lettered Conchology, Genus Tellina, Plate V. 



Fig. 1,1. Tellina radiata. No. i. outfide, No. 2. in- 

 fide (Donov. Brit. Shells) 



2, 2. Tellina fqualida, No. i. outfide, No. 2. in- 



fide {Donov. Brit. Shells) 



3, 3. Tellina fabula, one valve of this Shell is 



marked externally with very fine oblique 

 fubflexuous ftrise, the other fmooth or 

 deflitute of ftrise {Donov. Brit. Shells) 



4, Tellina bimaculata, infide and outfide {Donov. 



Brit. Shells) 



Genus Cardium. 



Fig. 5. Cardium aculeatum 



6. Cardium licvigatum 



7. Cardium edule 



8. Cardium medium 



Genus Mactra. 



193. 



194. 



Lettered Conchology, Genus Mya, &c. 

 XI. B. 



Fig. 2. MaSra radiata 



Plate 



Genus Donax. 

 Fig. 3. Donax trunculus 



Genus Venus. 

 Fig. 4. Fenus ijlandica. No. i. outfide, No. 2. infide 



Genus Chama. 

 Fig. 5. Chama Cor 



Genus Spondylus. 



Lettered Conchology, Genus Spondylus, Plate 

 XVII. 



Fig. I, 2, 3. Spondylus gtdaropus. Upper figure on 

 the left hand the ufual fize ; upper figure 

 on the right fide fhews the infide of both 

 valves ; the lower figure a fuperb fpecimen, 

 in point of magnitude, and perfeftion of 

 the elongated fpines. Cabinet of Alexander 

 M'Leay, Efq. 



