acorn barnacle
Noun 1. barnacle that attaches to rocks especially in intertidal zones (synonym) rock barnacle, Balanus balanoides (hypernym) barnacle, cerriped, cerripede (member-holonym) Balanus, genus Balanus | ||||
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Acorn barnacle definition was found in categories: Language, Idioms & Slang(1) Encyclopedia(1)
Acorn barnacle Definition from Language, Idioms & Slang Dictionaries & Glossaries
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acorn barnacle
acorn barnacle
n : barnacle that attaches to rocks especially in intertidal zones [syn: rock barnacle, balanus balanoides]
acorn barnacle
n : barnacle that attaches to rocks especially in intertidal zones [syn: rock barnacle, balanus balanoides]
Acorn barnacle Definition from Encyclopedia Dictionaries & Glossaries
| Wikipedia English - The Free Encyclopedia |
Balanomorpha
- Archaeobalanidae Newman & Ross, 1976
- Balanidae Leach, 1817
- Bathylasmatidae Newman & Ross, 1971
- Catophragmidae Utinomi, 1968
- Chelonibiidae Pilsbry, 1916
- Chionelasmatidae Buckeridge, 1983
- Chthamalidae Darwin, 1854
- Coronulidae Leach, 1817
- Pachylasmatidae Utinomi, 1968
- Platylepadidae Newman & Ross, 1976
- Pyrgomatidae Gray, 1825
- Tetraclitidae Gruvel, 1903
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Balanus
Balanus amphitrite is small about 1.5 cm diameter. The color is whitish with purple or brown longitudinal stripes. Surface of test plates are longitudinally ribbed. The interlocking tergum and scutum, the paired structures which cover the animal inside are as pictured below.
A similar species, Balanus reticulatus Utinomi, commonly occurs with B. amphitrite. It also has longitudinal purple or brown stripes, but these stripes are intersected by horizontal grooves, giving the surface of the test plates a rough reticulated striation, unlike B. amphitrite. It can also be distinguished by examination of the tergum and scutum. Note the more sharply pointed apex of the tergum and the elongated and narrower tergum spur of B. reticulatus.
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