common arm squid vs Common Tent-making Bat

Brachioteuthis riisei compared with Uroderma bilobatum

Key Differences

• common arm squid is Data Deficient while Common Tent-making Bat is Least Concern.

Taxonomic Classification

Rank	common arm squid	Common Tent-making Bat
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum	Mollusca (mollusques)	Chordata (Chordates)
Class	Cephalopoda (Cephalopods)	Mammalia (mammifères)
Order	Oegopsida (Oegopsida)	Chiroptera (Bats)
Family	Brachioteuthidae	Phyllostomidae
Genus	Brachioteuthis	Uroderma
Species	Brachioteuthis riisei	Uroderma bilobatum

Evolutionary Relationship

common arm squid and Common Tent-making Bat share a common ancestor at the Kingdom level: Animalia. (animal)

Conservation Status

common arm squid

DD — Data Deficient

Common Tent-making Bat

LC — Least Concern

Physical Characteristics

Attribute	common arm squid	Common Tent-making Bat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

common arm squid

Habitat

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

Range

Distributed across Chile and Norway.

Common Tent-making Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

common arm squid

<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.

Common Tent-making Bat

<em>Uroderma bilobatum</em>, the tent-making bat, is a leaf-nosed bat in the family Phyllostomidae, distributed across Central America and northern South America, including Colombia, Ecuador, and Venezuela. It is classified as Least Concern on the IUCN Red List due to its wide range and tolerance of secondary and disturbed habitats. This bat is named for its remarkable behavior of biting through the midribs of large palm or Heliconia leaves to cause them to fold into tent-like roosts, which are used for shelter by small colonies. It typically inhabits tropical and subtropical lowland forests, forest edges, and plantations. The diet consists primarily of fruits, particularly figs, making it an important seed disperser in neotropical ecosystems. Roosting groups are typically small, composed of one male and several females. The species uses echolocation for navigation. Biological traits such as precise wing dimensions, body weight, and longevity remain poorly documented in standardized assessments, though adults typically weigh between 13 and 20 grams.