Significance to humans

None known.

Cephalorhyncha
1. Echinoderes sensibilis; 2. Kinorhynchus yushini; 3. Centroderes eisigii; 4. Cephalorhyncha asiatica. (Illustration by Amanda Humphrey)

No common name

Centroderes eisigii

ORDER

Cyclorhagida

FAMILY

Centroderidae

FEEDING ECOLOGY AND DIET Herbivorous and selective deposit feeder.

REPRODUCTIVE BIOLOGY Six juvenile stages of type "Centropsis."

CONSERVATION STATUS Not listed by the IUCN.

SIGNIFICANCE TO HUMANS Mediterranean Sea, Bay of None known. ♦

TAXONOMY

Centroderes eisigii Zelinka, 1928, Naples.

OTHER COMMON NAMES None known.

PHYSICAL CHARACTERISTICS Trunk length (TL) 0.0118-0.0138 in (300-350 ^m). Trunk transparent; neck placids alternating in widths; MTS at least twice as long as LTS; LS of segment 3 (AT) longer than two first trunk segments together; DS on segments 3-13; LS on segments 4, 7, 10-11; MTS about 60% of TL.

DISTRIBUTION

Eastern Atlantic boreal species; also Mediterranean and Black Seas.

HABITAT

Abundant in phaseoline mud; subtidal, at 98-656 ft (30-200 m) deep.

BEHAVIOR

Nothing is known.

Essentials of Human Physiology

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