Key Identification Features
- californica has distinctive chaetae, or bristles, that extend out sideways from its body.
- The anterior region of the worm can be identified by a small growth called a caruncle, which matches the color of the worm’s gills, on its first four body segments.
- Distinct population structure exists between the H.
- The body is composed of 37 visible segments, and each segment bears a distinctive ocellus.
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