Mammalogy Lab 8

Lagomorpha and Rodentia

• Kingdom Animalia– Phylum Chordata• Subphylum Vertebrata

– Class Mammalia» Subclass Theria

• Infraclass Eutheria

Order Lagomorpha

• Family Ochotonidae- Pikas• Family Leporidae- Hares and rabbits– Lepus californicus- black-tailed jackrabbit– Sylvilagus aquaticus- swamp rabbit– Sylvilagus audubonii -Audobon’s cottontail– Sylvilagus floridanus- eastern cottontail

• Family Prolagidae- Mediterranean giant pikas

Family Ochotonidae

Lepus carnifornicus

Sylvilagus aquaticus

Sylvilagus audubonii

Sylvilagus floridanus

Order Rodentia

The Order Rodentia is devided into 5 different Suborders, and they are:– Suborder Sciuromorpha– Suborder Castorimorpha– Suborder Myomorpha– Suborder Anomaluromorpha– Suborder Hystricomorpha

Suborder Sciuromorpha

• Family Aplodontidae- Mountain beaver– Aplodontia rufa- mountain beaver

Family Aplodontidae

Suborder Sciuromorpha– Family Sciuridae- squirrels

• Ammospermophilus interpres- Texas antelope squirrel• Ammspermophilus leucurus- white tailed antelope squirrel• Cynomys ludovicianus- black tailed prairie dog• Glaucomys volans- southern flying squirrel• Sciurus carolinensis- eastern gray squirrel• Sciurus niger- eastern fox squirrel• Spermophilus mexicanus- Mexican ground squirrel• Spermophilus spilosoma- spotted ground squirrel• Spermophilus tridecemlineatus- thirteen-lined ground squirrel• Spermophilus variegatus- rock squirrel• Tamias canipes- gray footed chipmunk• Tamias quadrivittatus- colorado chipmunk• Tamias Striatus- Eastern chipmunk

Ammospermophilus interpres

Ammospermophilus leucurus

Cynomys ludovicianus

Glaucomys volans

Sciurus carolinensis

Sciurus niger

Spermophilus mexicanus

Spermophilus spilosoma

Spermophilus tridecemlineatus

Spermophilus variegatus

Tamias quadrivittatus

Tamias striatus

Suborder Sciuromorpha

– Family Gliridae- dormice and hazel mice

Suborder Castorimorpha

• Family Castoridae- beavers– Castor canadensis- American beaver

Castor canadensis

Suborder Castorimorpha• Family Heteromyidae

– Chaetodipus hispidus- hispid pocket mouse– Chaetodipus intermedius- rock pocket mouse– Chaetodipus nelsoni- Nelson’s pocket mouse– Chaetodipus penicillatus- desert pocket mouse– Dipodomys compactus- Gulf Coast kangaroo rat– Dipodomys elator- Texas Kangaroo rat– Dipodomys merriami- Merriam’s kangaroo rat– Dipodomys ordii- Ord’s Kangaroo rat– Dipodomys spectabilis- Banner-tailed kangaroo rat– Liomys irroratus- Mexican spiny pocket mouse– Perognathus flavescens- plains pocket mouse– Perognathus flavus- silky pocket mouse– Perognathus merriami- Merriam’s pocket mouse

Chaetodipus hispidus

Chaetodipus nelsoni

Dipodomys merriami

Dipodomys ordii

Dipodomys spectabilis

Perognathus flavus

Perognathus merriami

Suborder Castorimorphia

• Family Geomyidae- pocket gophers– Cratogeomys castonops- yellow faced pocket gopher– Geomys arenarius- desert pocket gopher– Geomys attwateri- Attwater’s pocket gopher– Geomys breviceps- Baird’s pocket gopher– Geomys bursarius- Plains pocket gopher– Geomys knoxjonesi- Knox Jone’s pocket gopher– Geomys personatus- Texas Pocket gopher– Geomys texensis- Central Texas pocket gopher– Thomomys bottae- Botta’s pocket gopher

Cratogeomys castonops

Geomys breviceps

Geomys personatus

Geomys texensis

Thomomys bottae

Suborder Myomorpha

• Family Dipodidae- Birch mice, jerboas, and jumping mice– Zapus hudsonius- meadow jumping mouse

• Family Platacanthomyidae- malabar spiny dormouse and pygmy dormice

• Family Spalacidae- blind more rats, African mole rats, zokors, and bamboo rats

• Family Calomyscidae- mouse-like hamsters• Family Nesomyidae- African and Malagasy endemic

rats and mice

Family Dipodidae

Family Platacanthomyidae

Suborder Myomorpha

• Family Cricetidae- New World rats, mice, voles, hamsters, and relatives.– Baiomys taylori- northern pygmy mouse– Microtus mexicanus- Mexican vole– Microtus ochrogaster- prairie vole– Microtus pinetorum- woodland vole– Neotoma albigula- white-throated woodrat– Neotoma floridana- eastern woodrat– Neotoma leucodon- white-toothed woodrat– Neotoma mexicana- Mexican woodrat– Neotoma micropus- southern plains woodrat

Baiomys taylori

Microtus mexicanus

Microtus ochrogaster

Microtus pinetorum

Neotoma albigula

Neotoma floridana

Neotoma mexicana

Neotoma micropus

Suborder Myomorpha• Family Cricetidae (cont…)

– Ochrotomys nuttalli- golden mouse– Onychomys arenicola- Mearn’s grasshopper mouse– Onychomys leucogastor- northern grasshopper mouse– Oryzomys couesi- Coues’ rice rat– Oryzomys palustris- marsh rice rat– Peromyscus attwateri- Texas mouse– Peromyscus boylii- brush mouse– Peromyscus eremicus- cactus mouse– Peromyscus gossypinus- cotton mouse– Peromyscus leucopus- white footed mouse– Peromyscus maniculatus- deer mouse– Peromyscus nustus- northern rock mouse– Peromyscus pectoralis- white ankled mouse– Peromyscus truei- pinyon mouse

Ochrotomys nuttalli

Onychomys leucogastor

Oryzomys palustris

Peromyscus attwateri

Peromyscus boylii

Peromyscus leucopus

Peromyscus maniculatus

Peromyscus pectoralis

Peromyscus truei

Suborder Myomorpha

• Family Cricetidae (cont…)– Reithrodontomys fulvescens- fulvous harvest mouse– Reithrodontomys humulis- eastern harvest mouse– Reithrodontomys megalotis- western harvest mouse– Reithrodontomys montanus- plains harvest mouse– Sigmodon fulviventer- tawny-bellied cotton rat– Sigmodon hispidus- hispid cotton rat– Sigmodon ochrognathus- yellow nosed cotton rat

Reithrodontomys megalotis

Reithrodontomys montanus

Sigmodon hispidus

Suborder Myomorpha

• Family Muridae- rats, mice, voles, gerbils, hamsters, lemmings– Mus musculus- house mouse– Rattus norvegicus- brown rat– Rattus rattus- house rat

Mus musculus

Rattus norvegicus

Suborder Anomaluromorpha

• Family Anomaluridae- scaly tailed squirrel• Family Pedetidae- Springhare– Pedetes capensis- springhare

Family Pedetidae

Suborder Hystricomorpha

• Family Ctenodactylidae- gundis• Family Bathyergidae- blesmoles and mole rats– Cryptomys hottentotus- African mole rat

• Family Hystricidae- Old world porcupines– Hystrix cristata- North African crested porcupine

• Family Petromuridae- dassie rat• Family Thryonomidae- cane rats• Family Erethizontidae- New World Porcupines– Erethizon dorsatum- North American porcupine

Family Bathyergidae

Family Hystricidae

Erethizon dorsatum

Suborder Hystricomorpha

• Family Chinchillidae- chinchillas and viscashas• Family Dinomyidae- pacarana• Family Caviidae- cavies– Cavia porcellus- Guiena pig

• Family Dasyproctidae- acuchis and agoutis• Family Cuniculidae- pacas• Family Ctenomyidae- tuco-tucos– Ctenomys magellanicus- Magellanic tuco-tuco

Family Chinchillidae

Family Dinomyidae

Family Caviidae

Family Dasyproctidae

Family Ctenomyidae

Suborder Hystricomorpha

• Family Octodontidae- degus, rock rats, and viscaha rats

• Family Abrocomidae- chinchilla rats• Family Echimyidae- American spiny rats• Family Myocastoridae- coypu and nutria– Myocastor corypus- corypu (nutria)

• Family Capromyidae- West Indian hutias• Family Heptaxodontidae- giant hutias

Myocastor coypus