. Animal studies. MOLLUSKS 91 mouth by means of the cilia on the great triangular lips or palps which bound it on each side (Fig. 51, A,p). Ji i •. Fig. 51.—Anatomy of fresh-water clam. A, right valve of shell removed ; B, dissec- tion to show internal organs, a, external opening of kidney ; , the anterior muscle for closing the shell; 5, opening of reproductive kidney ; c, brain ; ft., foot; g, gill; h, heart; i, intestine ; k, kidney ; I, liver ; m, mantle (upper fig.), mouth (lower fig.); p. palp (upper fig.), foot nerves (lower fig.); , hinder muscle for closing the shell ; s, spac
. Animal studies. MOLLUSKS 91 mouth by means of the cilia on the great triangular lips or palps which bound it on each side (Fig. 51, A,p). Ji i •. Fig. 51.—Anatomy of fresh-water clam. A, right valve of shell removed ; B, dissec- tion to show internal organs, a, external opening of kidney ; , the anterior muscle for closing the shell; 5, opening of reproductive kidney ; c, brain ; ft., foot; g, gill; h, heart; i, intestine ; k, kidney ; I, liver ; m, mantle (upper fig.), mouth (lower fig.); p. palp (upper fig.), foot nerves (lower fig.); , hinder muscle for closing the shell ; s, space through which the water passes on leaving the body ; st, stomach ; v, nerves supplying viscera. Between the halves of the shell in the hinge region is a horny pad that acts like a spring, and without any muscu- lar effort on the part of the clam keeps the shells 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 Jordan, David Starr, 1851-1931; Kellogg, Vernon L. [from old catalog].
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Keywords: ., bookauthorjordanda, bookcentury1900, bookdecade1900, bookyear1903
