Erinaceomorpha and soriciomorpha

Question 1

long snout, mouse to rabbit sized, some have spines and enlarged panniculus carnosus muscle to erect spines, enlarged 1st upper and lower incisor, some have no spines but coarse hair, omnivorous

Answer 1

Order Erinaceomorpha
family Erinaceidae (hedgehogs and galericinae)

Question 2

large body, long slender flexible snout, small eyes, incomplete zygomatic arch, no auditory bullae, enlarged upper incisors, 2nd lower incisor grooved to transport toxins, zalambdodont molars, omnivorous and nocturnal

Answer 2

order soricomorpha
family solenodontia (solenodons)

Question 3

Nearly worldwide distribution, small and inconspicuous but very abundant, long and slim snout, small eyes and visible pinnae, no zygomatic arch or tympanic bullae, teeth with iron oxide pigmentation, hooked first upper incisor, terrestrial semiaquatic or fossorial, insectivores, some venomous species, active day and night, high metabolic rate, some rudimentary echolocation

Answer 3

order soricomorpha
family soricidae (shrews)

Question 4

north America, Europe, Asia, terrestrial semiaquatic semi fossorial or fossorial, small eyes, absent pinnae, elongate snout, lustrous pelage lies in any direction, fossorial adaptations such as laterally pointing digits, short limbs and phalanges, long claws, long and slender scapula, enlarged sternum, powerful diggers, sense prey with Eimer’s organ

Answer 4

order soricomorpha
family talpidae (moles)