INDEX TO THE HISTORIA CONCHYLIORUM. 
25 
creatione, parts, f.31. and the latter is an inverted copy from the Historia Ani- 
malium Anglise, t. 8. f. 45. 
482. 39. These are considered by Mr. Miller to be two badly executed figures of an unde¬ 
scribed species of Spirifer which occurs in the lias. 
483. 40. Ostrea linguatula of Lamarck; and the Ostrea canaliculata of Sowerby is probably 
a variety. 
484. 40. b. Is a species of Ostrea allied to, but probably distinct from, the Ostrea acuminata 
of Sowerby, and may perhaps be the Ostrea lingularis of Lamarck. 
485. 41. Is probably a variety of the Mytilus antiquorum of Sowerby. 
48b. 42. Ostrea carinata of Lamarck and Sowerby. 
487- 43. Has the appearance of an Area, and I am unacquainted with the species. 
488. 44. Pectunculus decussatus of Sowerby; and Lamarck has quoted this species, with a 
mark of doubt, for his Pectunculus subconcentricus. 
489. 45. With this shell I am entirely unacquainted. 
490. 4b. Is considered by Mr. Miller to be an undescribed shell which is occasionally, 
though rarely, found in the inferior oolite, and he suspects that it belongs to the 
genus % Cardita. 
491. 47. Is a nondescript to which Mr. Miller has given the name of Corbula sulcata; and 
he says it is “a thin shell, much resembling Corbula gigantea, but differing 
te from it in being very regularly furrowed transversely:” he adds, that it is found 
in the inferior oolite, and that the more perfect specimens have a fine polish and 
a tinge of blue. 
492. 48. Is probably a broken shell of the Plagiostoma obscura of Sowerby. 
493. 48. b. Plagiostoma punctata of Sowerby. 
494. 50. Cardita margaritacea of Sowerby. 
495. 51. Lima gibbosa of Sowerby. 
49b. 49. May probably belong to the same family as the Cardita? producta of Sowerby, but 
I am unacquainted with the shell. 
497. 52. Is the Venus imbricata of Chemnitz and Gmelin, and the Venericardia imbricata 
of Lamarck. This figure has been erroneously quoted as a recent shell by 
Gmelin, for Venus Marica and for Chama Ajar by Bruguiere. 
498. 52. b. Is probably a Cardita allied to the Cardita striata of Sowerby. 
499. 53. Cyprina tridacnoides of Lamarck. 
500. 54. Is considered by Mr. Miller to be an immature shell of the Cardita lunulata of 
Sowerby. 
501. 55. Trigonia costata of Parkinson, Sowerby, and Lamarck. 
502. 5b. Is the Trigonia clavellata of Parkinson and Sowerby, and the Trigonia nodulosa of 
Lamarck. 
503. 57. Is probably a very young shell of the foregoing species. 
504. 58. In its size and markings this figure accords with Nucula Cobboldue, but in shap e 
it more resembles, and is probably a young shell of, the Venus lineolata of 
Sowerby. 
505. 59. A damaged shell of the Plagiostoma gigantea of Sowerby. 
50b. bo. This shell is arranged in Mr. Miller’s cabinet with the MS. name of Anodonta si- 
nuata: and he has succeeded in cleaning out the hinge of one valve, which de¬ 
noted a conformity to Anodonta: but as he has not seen the hinge of the op¬ 
posite valve, the genus must remain somewhat uncertain: it is much thinner and 
more oblong than the Unio crassiusculus of Sowerby, and is said to occur plenti¬ 
fully in the inferior oolite. 
507. bl. Is probably allied to the Unio concinnus of Sowerby, but I am unacquainted with 
the shell. 
508. b2, Unio Listeri of Sowerby. 
509. b3. Lutraria lirata of Sowerby. 
510. b4. Is a badly executed figure of the Hippopodium ponderosum of Sowerby. 
511. b5. With this shell I am entirely unacquainted. 
512. f bb. Astarte elegans of Sowerby. 
512. b7- Is probably an undescribed species of Lucina. 
513. b8. I am unacquainted with this shell. 
514. bq. Mr. Miller suspects that this belongs to an undescribed species which he has found 
G 
