No common name

Cephalorhyncha asiatica

ORDER

Cyclorhagida

FAMILY

Cephalorhynchidae

TAXONOMY

Cephalorhyncha asiatica Adrianov, 1999, Northwest Pacific Ocean, Sea of Japan, Peter the Great Bay.

OTHER COMMON NAMES

None known.

PHYSICAL CHARACTERISTICS

Trunk length (TL) 0.0138-0.0157 in 350-400 ^m. Trunk transparent; only segment 3 composed of complete ring of cuticle, segment 4 composed of arched tergite and sternal plate incompletely subdivided by midventral articulation into 2 subs-ternites; DS on segments 6-10; LS on segments 4, 7-11; segment 12 with a pair of subdorsal spines; LTS 65% of TL.

DISTRIBUTION

Western coast of the Sea of Japan. HABITAT

Mud and muddy sand with a high organic content near estuaries; subtidal, 10-33 ft (3-10 m) deep.

BEHAVIOR

Nothing is known.

FEEDING ECOLOGY AND DIET Herbivorous, diatom feeder.

REPRODUCTIVE BIOLOGY

Six juvenile stages ("Centropsis" and "Habroderes").

CONSERVATION STATUS

Not listed by the IUCN.

SIGNIFICANCE TO HUMANS None known. ♦

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