No common name

Oligotrema sandersi

FAMILY Hexacrobylidae

TAXONOMY

Gasterascidia sandersi Monniot and Monniot, 1968, northwest Atlantic Ocean.

OTHER COMMON NAMES None known.

PHYSICAL CHARACTERISTICS

Small, not exceeding 0.2 in (5 mm). Oval body covered by sparse hairs with attached mud particles and foraminiferan tests. Two prominent siphons on opposite sides of body. Highly muscular, completely eversible branchial siphon longer than atrial siphon, has six fingerlike lobes. Stomach very large, occupies most of body.

DISTRIBUTION

Widely distributed in Atlantic Ocean, not recorded in other oceans.

HABITAT

Abyssal; recorded at about 4,920-16,400 ft (1,500-5,000 m) deep.

BEHAVIOR Nothing is known.

FEEDING ECOLOGY AND DIET Carnivorous, including small invertebrates.

REPRODUCTIVE BIOLOGY

Nothing is known.

CONSERVATION STATUS Not listed by the IUCN.

SIGNIFICANCE TO HUMANS None known. ♦

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