PL. 
4. 
39. 
6. 
FIG. 
4. 
I. 
6. 
a 
OF 
— 
. Pneumodermon 
INDEX. 
Orbicula levigata, Blain. 
Horn colour. 
Ostrea cristagalli, Lam. 
Black. 
Ovula triticea, Zam. 
Pale pink. 
Ovula volva, Lam. 
Pale red, spirally striated. 
. Paludina Chinensis, Gray. 
Olive green; mouth with 
black edge. 
. Paludina pulchra, Gray. 
Pellucid, with red brown 
spiral bands. 
. Paludina subcostata, Gray. 
Olive green. 
From China. 
. Panopcea Aldrovandi, hinge 
of, Cuv. 
. Parmacella Olivieri, Lam. 
Dirty ash. 
. Parmacella palliolum, head of, 
Fer. 
. Pecten purpureus, Lam. 
Purplish white. 
. Pecten gibbosus, Lam. 
Reddish brown. 
. Pentadina margaritifera, Lam. 
Green. 
. Perna ephippium, Lam. 
Purple. 
. Petricola lucinalis, Zam. 
White. 
. Phallusia nigra, Sav. 
Black. 
. Pholas striata, (papyracea.) 
White. 
. Phyche globulosa, animal. 
Physa Nove Hollandiz. 
Pale brown. 
Pinna angustana, Lam. 
Yellowish ash. 
Placuna placenta, Lam. 
Silvery White. 
. Pleurostoma grandis, Gray. 
White with red spots. 
Pleurostoma carinata, Gray. 
White, whorles keeled. 
. Pleurostoma Babylonia, Lam. 
White, with black spots. 
. Plicatula cristata, Lam. 
Dirty white. 
diaphanum, 
Quoy and Gay. 
Dirty white. 
13 
599 
PL. FIG. 
3. 4. Pneumodermon Peronii, Cuv. 
Dirty white. 
2. 2. Polliceps cornucopia, Lam. 
White. 
2. 3. Polliceps mitella, Zam. 
Dirty white. 
2. 4. Polliceps scalpellum. 
Dirty white. 
4. Polyclinum constellatum, Sow. 
Bluish ash colour, with 
yellow spots. 
10. 
32. 12. Potamis fragilis, Brogn. 
Fossil. 
12. 10. Psammothea candida, Lam. 
White. 
3. Psyche globulosa. 
Hyaline. 
33. 6. Pterocera scorpio, Lam. 
Brown, with reddish brown 
streaks. 
ll. 7. Pulvinites Adansonii, Dep. 
Fossil. 
27. 3. Pupa striatella, Fer. 
Ash coloured, striated. 
3. 13. Pyrgo levis, Dep. 
Hyaline. 
7. 7,8. Pyrgona cancellata. 
10. 2. Pyrosoma rufum, Quoy and G. 
Straw colour. 
10. 3. Pyrosoma giganteum, Ana- 
tomy of. 
25. 3,4. Pyrula Mawe, Gray. 
Shell deformed. 
From China. 
5. Pyrula perversa, Lam. 
Light ash-coloured, with 
brown streaks. 
4, Pyrula striata, Sav. 
Pale yellow, with deeper 
spots. 
White. 
33. 
37. 
32. 2. Ricinula arachnoides, Lam. 
White, with black tubercles. 
8. Rostellaria pes-pelicani, Lam. 
Brownish ash. 
33. 
2. Salpa cristata (scutigera) Cuv. 
Ashy. 
3. Salpa infundibuliformis, Quoy. 
White, with ashy lines. 
4. Salpa tricuspis, Quoy. 
White, with ashy lines. 
5. Salpa longicauda, Quoy. 
Ash coloured. 
6. Salpa fusiformis, Quoy. 
Ash coloured. 
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