177. Galena. Missouri.

SHELLS.

1. Murex[*] canaliculatus, with Voluta mercatoria[*] included.

2. Murex[*] canaliculatus, with Voluta oliva[*] included.

3. Murex[*] canaliculatus, with serpulæ attached and included.

4. Murex[*] carica, with two pairs Mya[*] arenaria.

5. Helix[*] ampullacea, with two small madrepores.[*]

6. Helix[*] ampullacea, with seven Cypræa[*] monita—African money.

7. Venus[*] mercenaria, with four small ones; a variety of species included.

8. Venus[*] mercenaria, two valves, intermediate between the last named.