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Monoceros Blainvillii, d'Orbigny "Voyage" Pal. 2. Monoceros ambiguus, G.B. Sowerby. 3. Anomia alternans, G.B. Sowerby. 4. Pecten rudis, G.B. Sowerby. 5. Perna Gaudichaudi, d'Orbigny "Voyage" Pal. 6. Ostrea, small species, in imperfect state; it appeared to me like a small kind now living in, but very rare in the bay. 8. Mytilus Chiloensis; Mr.
Rostellaria Gaudichaudi, d'Orbigny "Voyage" Pal. 2. Pectunculus Paytensis, d'Orbigny "Voyage" Pal. 3. Venus petitiana, d'Orbigny "Voyage" Pal. 4. Ostrea Patagonica? Sowerby from some of the varieties from Patagonia; though it would be hazardous to assert it is the same with that species, or with that from Coquimbo.
In some species of Dacelo the males have blue tails, and the females brown ones; and Mr. R.B. Sharpe informs me that the tail of the young male of D. gaudichaudi is at first brown. Mr. I owe this information to Mr. Now the young of both sexes entirely resemble the adult female, so that their crests are actually of greater length, though narrower, than in the adult male. Macgillivray, 'Hist. Brit.
Bulla ambigua, d'Orbigny "Voyage" Pal. 2. Monoceros Blainvillii, d'Orbigny "Voyage" Pal. 3. Cardium auca, d'Orbigny "Voyage" Pal. 4. Panopaea Coquimbensis, d'Orbigny "Voyage" Pal. 5. Perna Gaudichaudi, d'Orbigny "Voyage" Pal. 6. Artemis ponderosa; Mr.
Cyprinus auratus. Cypris, relation of the sexes in. Cyrtodactylus rubidus. Cystophora cristata, hood of. Dacelo, sexual difference of colour in. Dacelo Gaudichaudi, young male of. Dal-ripa, a kind of ptarmigan. Damalis albifrons, peculiar markings of. Damalis pygarga, peculiar markings of. Dampness of climate, supposed influence of, on the colour of the skin. Danaidae. Dances of birds.
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