Order Eulipotyphla

Order Eulipotyphla

Overview

  • Order Eulipotyphla encompasses a diverse group of mammals, primarily characterized by their insectivorous diets and distinctive morphological features.

Family Solenodontidae

  • Common Name: Solenodons

  • Geographic Distribution: Found in Haiti, the Dominican Republic, and Cuba

  • Key Characteristics:
       - Highly social mammals.
       - Os proboscidis - unique structure in their flexible snouts, which aid in foraging and feeding.
       - Grooved Incisor Teeth (I2): These teeth are adapted for delivering toxic saliva, enhancing their predatory capabilities.
       - Molar Structure: Zalambdodont molars facilitate their diet predominantly consisting of insects. V shaped

Family Soricidae (Shrews)

  • Common Name: Shrews

  • Size and Distribution: Large and widely distributed group across various habitats.

  • Key Characteristics:
       - Incomplete zygomatic arch, which affects their skull structure.
       - Absence of auditory bullae.
       - Molar Structure: Dilambdodont, indicative of their insectivorous diet.
       - Dentition: Deciduous teeth are shed in utero, allowing for a continuous renewal of teeth optimal for their feeding habits.
       - Metabolism: They are noted for having high metabolic rates, which is crucial for their active lifestyles. eat half of their weight in food in a day
       - Toxic Species: There are several species within this family known for possessing toxic traits, which aids them in hunting.

  • smell bad

  • 11 lumbar vertebrae, interlocking

Notable Species in Soricidae

  • Arctic Shrew:
       - Adaptations for cold environments, influencing behavioral ecology and survival strategies.

  • Northern Short-tailed Shrew:
       - Unique spinal structure contributing to their locomotion and hunting style.

  • Subfamily Characteristics:
       - Subfamily Soricinae: Characterized by red teeth.
       - Subfamily Crocidurinae: Characterized by white teeth.

Family Talpidae (Moles, Shrew-moles, Desmans)

  • Common Names: Moles, shrew-moles, and desmans.

  • Geographic Distribution: Predominantly Holarctic, including North America and Europe.

  • Key Characteristics:

    • - complete zygomatic arch

    • short broad clavical


    •    - Approximately two-thirds of species are partially fossorial, indicating burrowing behaviors.
         - Active at any time of the day
         - Prefer moist soils, which influence their habitat selection and ecological interactions.
         - Physical Adaptations:
           - Rotated forelimbs with sharp claws facilitate digging and burrowing activities.

Notable Species in Talpidae

  • Star-nosed Mole:
       - Recognized for its unique star-shaped nasal appendage, which enhances tactile sensory capabilities.

  • American Shrew Mole:
       - Adaptations suited for both life underground and on the surface.

Desmans

  • Key Characteristics:

  • webbed feet

  • flexible snouts (probing small fish, insects, inverts)
      - Semi-aquatic creatures that possess echolocation abilities for locating prey.
      - Good swimmers, making them effective hunters in aquatic environments, but they lack significant digging capabilities, distinguishing them from their fossorial relatives.

Family Erinaceidae (Hedgehogs and Gymnures)

  • Common Names: Hedgehogs and gymnures.

  • Geographic Distribution: Found in Africa, Europe, and Asia.

  • Notable Species:
       - Mindanao Gymnure: A specific gymnure species, showcasing the diversity within this family.
       - Moon Rat (Echinosorex gymnurus): A notable member of this family, recognized by its unique ecological niche and behaviors.

complete zygomatic arch

insectivorous

many exhibit torpor during any time of the year if food availability isnt enough (or cold temps)