FLYING SQUIRRELS · SPECIES PROFILE

Morris’s Flying Squirrel

Olisthomys morrisi

Not EvaluatedDETAILED REFERENCE
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Body lengthUnknown
Tail lengthUnknown
WeightUnknown
Activitynocturnal arboreal gliding context from Pteromyini; direct natural-history data are limited
ConservationNot Evaluated
Countries / regionMyanmar · Thailand
01

Classification & Current Taxonomy

KingdomAnimalia
PhylumChordata
ClassMammalia
OrderRodentia
FamilySciuridae
SubfamilySciurinae
TribePteromyini
GenusOlisthomys
SpeciesOlisthomys morrisi
MDD taxon ID1006852

Current MDD recognizes Olisthomys morrisi separately from Petinomys setosus; range limits still need additional work.

02 · DISTRIBUTION

Where it occurs

Current MDD country distribution: Myanmar · Thailand.

Country-level distribution is a broad map, not a claim that the species occurs throughout every listed country.

02 · HABITAT

Where it lives

Current MDD country distribution: Myanmar · Thailand. Species-specific forest type, elevation limits and microhabitat use are not fully summarized here. Genus context: Southeast Asian forest.

03

Shelter, Nest & Resting Sites

Species-specific den and nest data: Unknown. Genus context: Unknown at species-specific detail. This is context, not a substitute for direct observations of Morris’s Flying Squirrel.

RANGE & HABITAT CONTEXT

Compare form, setting and structure

Related flying squirrels help break up the reference while showing how habitat, body form and movement can vary across the broader group.

Spotted Giant Flying Squirrel — related flying squirrel visual context
RELATED FLYING SQUIRRELSpotted Giant Flying SquirrelPetaurista elegans — related group reference for visual comparison; not Morris’s Flying Squirrel.(c) matthewkwan, some rights reserved (CC BY-ND) · CC-BY-ND · VIEW SOURCE ↗
Formosan Giant Flying Squirrel — related flying squirrel visual context
RELATED FLYING SQUIRRELFormosan Giant Flying SquirrelPetaurista grandis — related group reference for visual comparison; not Morris’s Flying Squirrel.(c) 謝忠良, some rights reserved (CC BY-NC) · CC-BY-NC · VIEW SOURCE ↗
04

Identification & Physical Profile

Body lengthUnknown
Tail lengthUnknown
WeightUnknown
AppearanceSpecies-specific adult measurements and diagnostic pelage details are not yet sufficiently standardized in available species-specific references. Genus context: Olisthomys is a small-to-medium flying-squirrel lineage; exact field identification should use locality, measurements and current taxonomic references together.

Species-specific adult measurements and diagnostic pelage details are not yet sufficiently standardized in available species-specific references. Genus context: Olisthomys is a small-to-medium flying-squirrel lineage; exact field identification should use locality, measurements and current taxonomic references together.

05

Gliding Anatomy & Locomotion

As a member of Pteromyini, this species uses a furred patagium between the fore- and hind limbs for controlled gliding. Wrist-supported membrane anatomy and the tail contribute to lift, steering, braking and landing. Species-specific maximum glide distance: Unknown.

Pteromyini context: Flying squirrels glide rather than perform powered flight. The patagium creates an aerodynamic surface, specialized wrist structures help support that surface, and the flattened or bushy tail contributes to stability and control.

06

Behavior, Activity & Communication

Activity: nocturnal arboreal gliding context from Pteromyini; direct natural-history data are limited

Social system: Unknown at species-specific detail.

Communication: Unknown at species-specific detail. Flying squirrels also use scent, posture and acoustic signals, but a species-specific repertoire is not assigned without direct evidence.

BEHAVIOR & FORAGING CONTEXT

Keep behavior connected to the animal

These are related flying squirrels, not photographs of Morris’s Flying Squirrel. Use them as visual context for locomotion, posture, feeding and environmental use.

Hainan Giant Flying Squirrel — related flying squirrel visual context
RELATED FLYING SQUIRRELHainan Giant Flying SquirrelPetaurista hainanus — related group reference for visual comparison; not Morris’s Flying Squirrel.(c) zhangshen, some rights reserved (CC BY) · CC-BY · VIEW SOURCE ↗
Taiwan Giant Flying Squirrel — related flying squirrel visual context
RELATED FLYING SQUIRRELTaiwan Giant Flying SquirrelPetaurista lena — related group reference for visual comparison; not Morris’s Flying Squirrel.(c) Liu JimFood, some rights reserved (CC BY-NC) · CC-BY-NC · VIEW SOURCE ↗
07

Diet & Foraging

Species-specific diet: Unknown or incompletely documented in available references. Genus context: Unknown at species-specific detail.

Unknown
08

Reproduction & Development

Breeding seasonUnknown
GestationUnknown
Litter sizeUnknown
DevelopmentUnknown

Unknown values remain explicit. Reproductive figures from related flying squirrels are not silently substituted for this species.

09 · LONGEVITY

Lifespan

Unknown

09 · PREDATORS

Predation & Risk

Species-specific predator list: Unknown. Flying squirrels are broadly preyed on by nocturnal raptors, snakes and mammalian carnivores, with the exact predator community depending on region.

10

Ecology & Ecosystem Role

Species-specific ecological role is incompletely documented. Genus context: poorly studied forest glider.

GROUP DIVERSITY

See the wider group around this species

Squirrels in the same broad group can look and live very differently. These credited references provide comparison without changing the facts for Morris’s Flying Squirrel.

Japanese Giant Flying Squirrel — related flying squirrel visual context
RELATED FLYING SQUIRRELJapanese Giant Flying SquirrelPetaurista leucogenys — related group reference for visual comparison; not Morris’s Flying Squirrel.(c) Hiroki Shudo, some rights reserved (CC BY-NC) · CC-BY-NC · VIEW SOURCE ↗
Indochinese Giant Flying Squirrel — related flying squirrel visual context
RELATED FLYING SQUIRRELIndochinese Giant Flying SquirrelPetaurista marica — related group reference for visual comparison; not Morris’s Flying Squirrel.(c) timboucher, some rights reserved (CC BY-NC) · CC-BY-NC · VIEW SOURCE ↗
11

Conservation

CURRENT MDD / IUCN STATUSNot Evaluated

Current MDD status shown above. Species with narrow island or montane distributions can face serious local habitat pressure even when a global assessment is not available.

12

Research Coverage & Unknowns

Natural-history coverage is incomplete. Taxonomy, current country distribution and conservation category are anchored to MDD; unsupported measurements, reproduction and lifespan remain Unknown rather than inferred from relatives.

Genus context: Olisthomys is a small-to-medium flying-squirrel lineage associated broadly with Southeast Asian forest. This is genus-level context where direct species-specific data are missing.

13

References & Further Reading

Taxonomy, distribution and conservation status follow the Mammal Diversity Database.