クビナガイカ vs ミナミクビナガイカ

Brachioteuthis riisei compared with Brachioteuthis picta

Key Differences

• クビナガイカ is Data Deficient while ミナミクビナガイカ is Least Concern.

Taxonomic Classification

Rank	クビナガイカ	ミナミクビナガイカ
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Mollusca (軟体動物)	Mollusca (軟体動物)
Class same	Cephalopoda (頭足類)	Cephalopoda (頭足類)
Order same	Oegopsida (開眼目)	Oegopsida (開眼目)
Family same	Brachioteuthidae	Brachioteuthidae
Genus same	Brachioteuthis	Brachioteuthis
Species	Brachioteuthis riisei	Brachioteuthis picta

Evolutionary Relationship

クビナガイカ and ミナミクビナガイカ share a common ancestor at the Genus level: Brachioteuthis.

Conservation Status

クビナガイカ

DD — Data Deficient

ミナミクビナガイカ

LC — Least Concern

Physical Characteristics

Attribute	クビナガイカ	ミナミクビナガイカ
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

クビナガイカ

Habitat

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

Range

Distributed across Chile and Norway.

ミナミクビナガイカ

Habitat

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

Range

Found in Chile.

クビナガイカ

<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.

Shared Countries

Both species can be found in 1 countries:

🇨🇱 Chile