Брахиотеутис обыкновенный vs Little Black Serotine

Brachioteuthis riisei compared with Eptesicus andinus

Key Differences

• Брахиотеутис обыкновенный is Data Deficient while Little Black Serotine is Least Concern.

Taxonomic Classification

Rank	Брахиотеутис обыкновенный	Little Black Serotine
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum	Mollusca (моллюски)	Chordata (хордовые)
Class	Cephalopoda (головоногие)	Mammalia (млекопитающие)
Order	Oegopsida (Океанические кальмары)	Chiroptera (рукокрылые)
Family	Brachioteuthidae	Vespertilionidae
Genus	Brachioteuthis	Eptesicus
Species	Brachioteuthis riisei	Eptesicus andinus

Evolutionary Relationship

Брахиотеутис обыкновенный and Little Black Serotine share a common ancestor at the Kingdom level: Animalia. (животные)

Conservation Status

Брахиотеутис обыкновенный

DD — Data Deficient

Little Black Serotine

LC — Least Concern

Physical Characteristics

Attribute	Брахиотеутис обыкновенный	Little Black Serotine
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Брахиотеутис обыкновенный

Habitat

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

Range

Distributed across Chile and Norway.

Little Black Serotine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

Брахиотеутис обыкновенный

<em>Brachioteuthis riisei</em>, commonly known as the Common Arm Squid, is a cephalopod mollusk in the family Brachioteuthidae. This species is classified as Data Deficient on the IUCN Red List, reflecting significant gaps in knowledge about its population size, ecology, and distribution. Records of this species have been reported from waters off Chile and Norway, suggesting a broad oceanic distribution. Common Arm Squids are typically mesopelagic or bathypelagic organisms, inhabiting the open ocean at considerable depths during the day and often migrating toward shallower waters at night to feed. Like other oceanic squids, they are likely important components of marine food webs, serving as both predators of small fish and invertebrates and as prey for larger marine predators such as cetaceans and seabirds. The Data Deficient listing underscores the need for additional research into the biology, population dynamics, and conservation requirements of this understudied species. Biological traits of this species remain poorly documented in the scientific literature.