26 
Tab. Fig. 
INDEX TO THE HISTORIA CONCHYLIORUM. 
in the inferior oolite at Dundry, and to which he has given the name of Astcirte 
subrotunda. 
515. 'JO. Crassatella sulcata of Sowerby. 
516. 71 . Mr. Miller informs me, that Listers name of Hippocephaloides, or Horseheads, be¬ 
longs exclusively to the inside easts of the Trigonise, of which this figure does 
not exhibit the essential characters ; and Lister therefore appears to have used 
the name with a greater latitude. 
517 . 72 . Is an inside cast of the Isocardia; which is generally considered to be a fossil va¬ 
riety of the Linnean Chama Cor . 
518. 73* Somewhat resembles the small shell which Sowerby has figured as a variety of his 
Modiola depressa, but is considered both by Mr. Miller and Mr. G. Sowerby to 
be a species of Lamarck’s genus Fistulana. 
519 . 74. A broken shell of the Perna aviculoides of Sowerby; and Lister has taken this 
figure from the Appendix to his ITistoria Animalium, t. 1 . f. 9 . 
520. 75. Pinna granulata of Sowerby. 
521. 76 . Is the Modiola plicata of Sowerby: but this name had been before given by La¬ 
marck to the recent shell which is the Mytilus plicatus of the Descriptive Cata¬ 
logue ; and I believe this to be the Modiola solenoides of Lamarck. 
522. 77 . 1 Perna aviculoides of Sowerby; and both these figures are taken from the Ap- 
523. J8. ) pendix to the Historia Animalium Anglise, t. 2 . f. 8 . 
527 . 1 . 
— 2 . 
528. 3. 
— 4. 
— 5. 
— 6 . 
— 7- 
529. — 
530. 8 . 
531. 9 . 
532. 10. 
— 11 . 
533. 12. 
534. 13. 
535. 14. 
536. 15. 
537. 16. 
MARINE UNIVALVES. 
An old shell of Patella Graca. 
A young shell of Patella Grceca; and Klein’s t. 8 . f. 3. is a copy. 
Patella Pustula. 
Is generally quoted for Patella nimbosa; but that species has the perforation con¬ 
tracted in the middle, and in this figure it is represented to be oval. 
Patella atricapilla. 
Patella nodosa. 
Patella perforata. 
Otherwise answers to Patella nubecula , but the perforation is not sufficiently ob- 
Patella Tranquebarica; and in my Descriptive Catalogue I have omitted to notice 
that this is the Patella picta of Humphreys and Da Costa’s Conchology, p. 4 . 
1.1. f. 6. 
Patella testudinaria; and I much doubt whether Lister has not borrowed this fi¬ 
gure from Buonanni, Museum Kircherianum, part 1 . f. 31. 
Patella saccharina; and the Patella Astro-Lepas of Humphreys and Da Costa’s 
Conchology, t. 3. f. 2. is the same species. 
This species has been accidentally omitted in the Descriptive Catalogue, and is the 
Patella octocostata of my manuscript. It has been arranged by Gmelin both as 
a variety of Patella octoradiata and of Patella monopis; and Petiver’s Gazo- 
phylacium, t. 118. f. 12 . and Klein’s t. 8 . f. 5. appear to have been engraved from 
this figure. 
Patella Oculus; and this figure has been quoted by Humphreys and Da Costa for 
their Patella Oculus Hirci , (p. 11. t. 2. f. 6.) which is the same species. It is 
very much like part 1. f. 27 . and 28. of Buonanni’s Museum Kircherianum, and is 
probably nothing more than a copy. 
Patella granatina; and the figure has probably been borrowed from Buonanni, 
Museum Kircherianum, part 1 . f. 30. 
Patella vulgata. 
Patella granularis; and the Patella echinata of Humphreys and Da Costa’s Con¬ 
chology, p. 18. t. 3. f. 13. is the same species. 
According to Martini, Schroeter, and Gmelin, this is Patella crenata; but it is ra¬ 
ther a doubtful figure, and I doubt whether it is more than a copy from Buo¬ 
nanni, Museum Kircherianum, part 1. f. 25. I may however take this oppor¬ 
tunity to observe, that Patella crenata is the Patella nigra of Humphreys and 
