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 µm. 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 substernites; 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.
