Collembola vs Combtooth dogfish

Folsomides angularis compared with Centroscyllium nigrum

Key Differences

• Collembola is Not Evaluated while Combtooth dogfish is Least Concern.

Taxonomic Classification

Rank	Collembola	Combtooth dogfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Collembola (springtail)	Elasmobranchii
Order	Entomobryomorpha (Entomobryomorpha)	Squaliformes (Squaliformes)
Family	Isotomidae	Etmopteridae
Genus	Folsomides	Centroscyllium
Species	Folsomides angularis	Centroscyllium nigrum

Evolutionary Relationship

Collembola and Combtooth dogfish share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Collembola

NE — Not Evaluated

Combtooth dogfish

LC — Least Concern

Physical Characteristics

Attribute	Collembola	Combtooth dogfish
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Collembola

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, Sweden, and United States.

Combtooth dogfish

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Chile.

Collembola

<em>Folsomides angularis</em>, commonly referred to as Collembola in reference to its broader taxonomic order, is a springtail species belonging to the genus <em>Folsomides</em>. Springtails are among the most abundant hexapods in terrestrial ecosystems, playing important roles in soil decomposition and nutrient cycling. This species has been documented in Europe, with records from Denmark, Norway, and Sweden, as well as North America, where it is known from the United States. It typically inhabits soil, leaf litter, and decaying organic matter, and is capable of tolerating a range of environmental conditions. Springtails of this group are detritivores, feeding on decomposing plant material, fungal hyphae, and microorganisms, though specific dietary data for <em>Folsomides angularis</em> are not detailed in current records. The species has not been formally assessed for conservation status. Biological traits of this species remain poorly documented in the scientific literature. Its small body size and cryptic lifestyle make detailed ecological study challenging.

Combtooth dogfish

<em>Centroscyllium nigrum</em>, the combtooth dogfish, is a deep-sea shark in the family Etmopteridae, assessed as Least Concern on the IUCN Red List. The species has been recorded from Chilean waters in the southeastern Pacific Ocean, where it inhabits deep oceanic environments on continental slopes. Like other members of the genus <em>Centroscyllium</em>, it possesses a series of small, comb-like teeth suited for grasping slippery prey. The combtooth dogfish is a small shark, characteristic of the lanternshark family in its modest body size and deep-water lifestyle. It is presumed to feed on fish, cephalopods, and crustaceans encountered in the midwater and benthic zones of its deep-sea habitat. As with many deep-sea elasmobranchs, detailed information on its population size, reproductive biology, and ecological role is limited. The species is currently not considered at significant conservation risk. Specific body length and weight data are not available in the current record.