16 
Tab. Fig. 
INDEX TO THE HISTORIA CONCHYLIORUM. 
225. 60.1 
226. 6 l.j 
Gazopbylacium, t. 152. f. 2.; 
colog. 
Anomia Placenta. 
and by Klein, at t. 9 . f. 38. of bis Methodus Ostra- 
22 /. 62 . Ostrea Ephippium: and Klein’s t. 8 . f. 18. is a copy. 
228. 63. Ostrea Perna bas been divided by Lamarck into two species, and this is his Perna 
sulcata; and, according to Schroeter, it is the Ostrea semiaurita of Linneus. 
Klein’s t. 8 . f. 19 . and 20 . are copies. 
229 . 64. Gmelin has followed Schroeter in describing this figure as a separate species, with 
the name ol Area Jamaicensis; but it is most probably nothing more than rather 
a coarse representation of Area Candida. 
230. 64 . a. Area antiquata. 
231. 65 . Biuguieie, whose references as well as descriptions are generally very accurate, bas 
erroneously quoted this figure both for Area barbata and for Arcafusca, and it 
belongs to the latter species. 
233. 66 . Is Area, indica: and I may here remark, that the Area rhomboidalis of Chemnitz, 
which in the Descriptive Catalogue I have followed Gmelin in arranging as a va¬ 
riety, is a perfectly distinct species. 
233. 67 . Area reticulata. 
234. 68 . Area corbicula of Lamarck: and in the Descriptive Catalogue I have followed 
Gmelin in placing this species as a variety of Area Corbula. Klein’s 1 . 10 . f. 43 . 
and 44. are copies. 
235. 69 . Area lactea. 
2 36. 70 . In the Systema Natura?, Linneus has quoted this figure for Area antiquata; but 
that species, in the “ Museum Lud. Ulricse,” is described with about thirty-four 
ribs, and the area between the summits fiat: I therefore consider Lister’s t. 230. 
which is the Area Scapha of Gronovius, to be the Area antiquata; and the shell 
here figured, though nearly allied, is a separate species: it differs in being nar¬ 
rower in proportion to the length, and less rhomboidal in its form; in having not 
more than about twenty-seven ribs, which are more convex, and bifid only on 
the posterior side; the umbones also are more obliquely recurved, and the area 
between the summits is not flat, but slants considerably towards the middle. In 
my MS. it stands with the name of Area Cymbula, and the following are its 
synonyms: Area antiquata of Born, Solander, and Lamarck; Area, antiquata 
Var. b. of Bruguiere; and Area Scapha Var. of Chemnitz, vol. v. p. 205. t. 55 . 
f. 549 . 
237. 7L Area Campeehensis; and Gmelin’s description of the species is wholly derived 
from this figure, 
238 . 72. Area senilis. 
239. 73. Area Pectunculus. 
— 81. Area nummaria; and Klein’s t. 10 . f. 41. has been copied from this figure. 
240. 77 * Area pilosa. 
241. 78 . Is the Area nodulosa of Solander’s MS. but I doubt whether this is more than a va¬ 
riety of Area granosa. A specimen which I bought from Mr. Humphreys, whose 
shells are often sold under Solander’s names, differs only in being rather longer in 
proportion to the breadth, and in having the nodules much less numerous. 
Klein’s t. 10 . f. 45. and 4 6 . have been obviously borrowed from these figures. 
242. 79 - Area granosa, 
243. 74 . Area pectinata. 
244. 75 . Area rhombea. 
245. 76 . Area angulosa. 
246 . 80. Area scripta. 
247. 82 . Area Glycymeris. 
249. 83 . Car drum serratum. 
250. 84. I cannot find any reference to this figure, except one with a mark of doubt in Da 
Costa’s British Conchology, for his Trigonella Gallina: but it has much more 
the look of a shell which usually passes for a variety of Venus Meretrix , and 
which is the Cytherea petechialis of Lamarck. 
251 . 80. Venus mactroides. 
