Читать книгу The Conchologist's First Book - Brown Thomas - Страница 8

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Fig. 1. Hinge of the Unio pictorum, a Primary tooth, c c double teeth.

Fig. 2. Hinge of the Solen. b Lateral teeth.

Fig. 3. Hinge of the Lucina radula, a a Primary teeth, n cartilage.

Fig. 4. Hinge of the Cardium. b Lateral tooth, d d middle teeth, l l spines.

Fig. 5. Hinge of the Lutraria.

Fig. 6. Inside of both valves of the Donax trunculus. A is the left valve, and B is the right valve, b lateral teeth, e primary complicated tooth, or cleft in the middle, m m crenulated margin.

Fig. 7. Hinge of the Venus, a a Primary teeth.

Fig. 8. Hinge of Spondylus gæderopus, f f incurved teeth.

Fig. 9. Hinge of Isocardia Cor.

Fig. 10. Hinge of the Pectunculus, k k numerous small teeth; the distinguishing characteristic of the Family Arcacea.

Fig. 11. Hinge of the Pecten, g cavity of the hinge, h superior ear, i inferior ear.

Fig. 12. Hinge of Anomia Ephippium.