Black Teatfish vs Common Flat-body

Holothuria nobilis compared with Agonopterix heracliana

Key Differences

• Black Teatfish is Endangered while Common Flat-body is Least Concern.

Taxonomic Classification

Rank	Black Teatfish	Common Flat-body
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum	Echinodermata (เอไคโนเดอร์มาตา)	Arthropoda (สัตว์ขาปล้อง)
Class	Holothuroidea (ปลิงทะเล)	Insecta (แมลง)
Order	Holothuriida (Holothuriida)	Lepidoptera (ผีเสื้อ)
Family	Holothuriidae	Depressariidae
Genus	Holothuria	Agonopterix
Species	Holothuria nobilis	Agonopterix heracliana

Evolutionary Relationship

Black Teatfish and Common Flat-body share a common ancestor at the Kingdom level: Animalia. (สัตว์)

Conservation Status

Black Teatfish

EN — Endangered

Common Flat-body

LC — Least Concern

Physical Characteristics

Attribute	Black Teatfish	Common Flat-body
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Teatfish

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Flat-body

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Black Teatfish

The Black Teatfish (Holothuria nobilis) is a species in the genus Holothuria. It is currently classified as Endangered on the IUCN Red List. Found in Taiwan. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Flat-body

<em>Agonopterix heracliana</em> is a moth belonging to the family Depressariidae within the order Lepidoptera. Commonly known as the common flat-body, this species is named for the flattened resting posture characteristic of the genus Agonopterix. The species is classified as Least Concern on the IUCN Red List, with no indication of significant population decline. <em>Agonopterix heracliana</em> is distributed across northwestern Europe, with documented occurrences in Belgium, Denmark, Norway, and Sweden. Larvae of this species are typically associated with plants in the family Apiaceae, particularly hogweed (Heracleum sphondylium) and related umbellifers, upon which they feed while sheltering in rolled or folded leaves. Adults are typically brownish with subtle markings and are active from late summer through winter and early spring, overwintering as adults — an unusual life history trait among moths. The species inhabits hedgerows, woodland margins, and meadows where its host plants are abundant. Biological traits of this species remain poorly documented in the scientific literature.