. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. foot again is vermiform when it is very slender and much elongated, as in the Loripes and Lima. When it is thus formed, it appears to us to be incapable of subserving motion. In a considerable number of species the foot is conical, as in the Cockle, (a, Jig- 357); and in this case it is generally folded into two nearly equal portions, so that by its means Fig. the animal can leap pretty actively. It is secu- riform when its free edge is arched like the cutting face of an axe, as in Petuncttlus, (a, Jig. 358). When
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. foot again is vermiform when it is very slender and much elongated, as in the Loripes and Lima. When it is thus formed, it appears to us to be incapable of subserving motion. In a considerable number of species the foot is conical, as in the Cockle, (a, Jig- 357); and in this case it is generally folded into two nearly equal portions, so that by its means Fig. the animal can leap pretty actively. It is secu- riform when its free edge is arched like the cutting face of an axe, as in Petuncttlus, (a, Jig. 358). When it presents this form its edge Fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Todd, Robert Bentley, 1809-1860. London, Sherwood, Gilbert, and Piper
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