Keyword: "peanut worm" | ClipArt ETC

<i>Sipunculus nudus</i>. A species of unsegmented marine worm, commonly called the peanut worm. "A, One fourth natural size, in longitudinal section. T, tentacles; r,r,r,r, four retractor muscles of the proboscis, detached from the points r1, r1 in the body walls; a, anus; ae, esophagus; i, intestine with j1, j2 its loops; x, y, appendages of rectum; z, fusiform mscle; w, ciliated groove of intestine; q, anal muscles; s, caecal glands of t, caeca, the so-called testes; p, pore at end of body; n, nervous cord, ending in a lobed ganglionic mass near the mouth, with an enlargement, g1, posteriorly; m1, m2, muscles associated with the nervous cord." —Whitney, 1889

Peanut Worm - Interior Anatomy of Adult

Sipunculus nudus. A species of unsegmented marine worm, commonly called the peanut worm. "A, One fourth…

<i>Sipunculus nudus</i>. A species of unsegmented marine worm, commonly called the peanut worm. "B, Larval Sipunculus, about one twelfth of an inch long. o, mouth; oe, esophagus; s, caecal gland; i1, intestine with masses of fatty cells; a, anus; w, ciliated groove of intestine; g, brain with two pairs of red eye-spots; n, nervous cord; p, pore; t, t1, so-called testes; W, W, circlet of cilia." —Whitney, 1889

Peanut Worm - Interior Anatomy of Larva

Sipunculus nudus. A species of unsegmented marine worm, commonly called the peanut worm. "B, Larval…