No common name

Phyllobothrium squali

ORDER Tetraphyllidea

FAMILY

Phyllobothriidae TAXONOMY

Phyllobothrium squali Yamaguti, 1952, off Onahama, Japan.

OTHER COMMON NAMES

None known.

PHYSICAL CHARACTERISTICS

Body 5.5-24 in (14-60 cm) long, 0.08-0.16 in (2-4 mm) wide. Scolex 0.12-0.18 in (3-4.5 mm) wide, with four foliose both-ridia with folded margins. Anterior end of each bothridium provided with small sucker. Apex of the scolex provided with glandular organ. Genital pores on lateral margins of proglottides, irregularly alternating.

DISTRIBUTION

Japanese waters, Black Sea, and Irish Sea.

HABITAT

In the spiral intestine of piked dogfish, Squalus acanthias (Squaliformes, Squalidae).

FEEDING ECOLOGY AND DIET

Internal parasite absorbing nutrients through the tegument.

BEHAVIOR Nothing is known.

REPRODUCTIVE BIOLOGY Hermaphroditic. The life cycle is unknown.

CONSERVATION STATUS Not listed by the IUCN.

SIGNIFICANCE TO HUMANS None known. ♦

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