Proceedings of the Zoological Society of London Volume 12

 
9781231937945: Proceedings of the Zoological Society of London Volume 12
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1844 Excerpt: ... of Gerber's Anatomy. It has been said that the blood-corpuscles are larger in omnivorous than in herbivorous and carnivorous animals. To the facts which I have elsewhere shown to be at variance with this opinion, it may be added that the oviparous Vertebrata, whatever may be the nature of their food, have larger blood-corpuscles than Mammalia, and that the size of the blood-corpuscles of many carnivorous birds exceeds that of the corpuscles of several of the omnivorous species. Finally, the Two-toed Sloth, which is a purely vegetable feeder, has, excepting the Elephant, the largest blood-corpuscles hitherto observed in any mammiferous animal. "Mr. Hinds' resumed description of new Shells, from the cabinets of Sir E. Belcher and H. Cuming, Esq." Ringicula, Deshayes. Ringicula Grandinosa. Rin. testd ovatd, retusd, loevigatd, politd; anfractibus rotundatis, ultimo magno, subquadrato, rotundato; columelld superne vald'e callosd, denticulatd. Axis If lin. Hab. Bais, island of Negros; in six fathoms, coarse sand: Cagayan, island of Mindanao; in twenty-five fathoms, sandy mud: Catbalonga, island of Samar; in ten to thirty fathoms, mud: Sorsogon, island of Luzon:--all in the Philippines. Cab. Cuming. These little shells resemble each other very closely, and it is only by close attention to minute characters and the proportion and form of the last whorl that they can be satisfactorily discriminated. The present species is perfectly smooth, and the last whorl is large, of a squarish form, and full and rounded. The upper portion of the aperture is strongly denticulated. Ringicula Propinquans. Rin. testd ovatd, retusd, striatd, nitidd; anfractibus rotundatis, ultimo magno valde rotundato, concinne striato. Axis 11 lin. Hab. Sual, Philippines; in five to seve...

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