acmaeid
Any gastropod in the family Acmaeidae.

acmaeids
plural of acmaeid

acochlidian
Any sea snail of the order Acochlidiacea

acochlidians
plural of acochlidian

acontiid
Any moth of the genus Acontia

acontiids
plural of acontiid

acritolepid
Any extinct sharklike fish of the family †Acritolepidae

acritolepids
plural of acritolepid

acrobatid
Any marsupial of the family Acrobatidae; a feathertail glider or a feather-tailed possum.

acrobatids
plural of acrobatid

acrocerid
Any fly of the family Acroceridae.

acrocerids
plural of acrocerid

acrochord
Any snake of the genus Acrochordus

acrochords
plural of acrochord

acrocirrid
Any of many polychaete worms of the family Acrocirridae

acrocirrids
plural of acrocirrid

acrolepiine
Any moth of the subfamily Acrolepiinae

acrolepiines
plural of acrolepiine

acrolophid
Any moth of the family Acrolophidae.

acroporid
Any coral in the family Acroporidae.

acroporids
plural of acroporid

acteonellid
Any gastropod in the family Acteonellidae.

acteonellids
plural of acteonellid

acteonid
Any sea snail in the family Acteonidae.

acteonids
plural of acteonid

actinocerid
Any extinct cephalopod of the order †Actinocerida

actinocerids
plural of actinocerid

actinocrinite
A crinoid of the genus †Actinocrinites, present only as fossils.

actinodontid
Synonym of eryopid.

actinodontids
plural of actinodontid

actinopodid
Any mygalomorph spider of the family Actinopodidae

actinopodids
plural of actinopodid

acuariid
Any nematode in the family Acuariidae.

acuariids
plural of acuariid

adapedont
Any bivalve mollusc of the order Adapedonta

adapedonts
plural of adapedont

adapid
Any extinct primate of the family Adapidae

adapids
plural of adapid

adapisoriculid
An extinct eutherian mammal of the family †Adapisoriculidae.

adapisoriculids
plural of adapisoriculid

adelid
Any moth in the family Adelidae.

adelids
plural of adelid

adelphomyine
An extinct spiny rat, of the family Echimyidae, known only as fossils

adelphomyines
plural of adelphomyine

adenophorean
Any nematode of the class Adenophorea

adenophoreans
plural of adenophorean

adeonid
Any bryozoan of the family Adeonidae

adeonids
plural of adeonid

aderid
Any beetle in the family Aderidae.

aderids
plural of aderid

adjutrice
Alternative form of adjutrix (“female adjutor”).

adjutrices
plural of adjutrix
plural of adjutrice

adjutrix
A female adjutor.

aeglid
Any crustacean in the family Aeglidae.

aeglids
plural of aeglid

aegyptosuchid
Any extinct crocodyliform of the family Aegyptosuchidae

aegyptosuchids
plural of aegyptosuchid

aelurilline
Any spider in the tribe Aelurillini.

aelurillines
plural of aelurilline

aeolosaurian
Any extinct titanosaur of the clade †Aeolosaurini

aeolosaurid
Any extinct titanosaur of the genus †Aeolosaurus

aeolosaurids
plural of aeolosaurid

aethrian
Any noctuoid moth in the genus Aethria.

aethrians
plural of aethrian

afrotarsiid
Any extinct primate of the family Afrotarsiidae

afrotarsiids
plural of afrotarsiid

aganaine
Any moth of the subfamily Aganainae

aganaines
plural of aganaine

agariciid
Any stony coral in the family Agariciidae.

agariciids
plural of agariciid

agelenid
Any spider in the family Agelenidae.

agelenids
plural of agelenid

ageneiosid
Any catfish in the family Ageneiosidae, which is now considered to be part of the family Auchenipteridae.

ageneiosids
plural of ageneiosid

aglajid
Any gastropod in the family Aglajidae.

aglajids
plural of aglajid

agonoxenid
Any moth in the family Agonoxenidae, now considered a subfamily of the family Elachistidae.

agonoxenids
plural of agonoxenid

agonoxenine
Any moth of the subfamily Agonoxeninae.

agriline
Any beetle of the subfamily Agrilinae.

agrilinoid
Any beetle of the subfamily Agrilinae

agrilinoids
plural of agrilinoid

agriloid
Any beetle of the genus Agriloides

agriloids
plural of agriloid

akerid
Any sea snail in the family Akeridae.

akerids
plural of akerid

akodontine
Any rodent of the tribe Akodontini

akodontines
plural of akodontine

alant
Alternative form of alaunt.

alants
plural of alant

alaunt
A domesticated dog of an extinct breed related to the modern bulldog and mastiff, or modern breeds created in imitation of it.

alaunts
plural of alaunt

alcyonid
Any bryozoan of the genus Alcyonidium

alcyonids
plural of alcyonid

alcyoniidid
Any bryozoan of the family Alcyonidiidae

alcyoniidids
plural of alcyoniidid

aleocharine
Any rove beetle of the subfamily Aleocharinae

aleocharines
plural of aleocharine

alepocephalid
Any fish in the family Alepocephalidae, the slickheads.

alepocephalids
plural of alepocephalid

aleurodid
Alternative form of aleyrodid.

aleurodids
plural of aleurodid.

aleyrodid
Any insect of the whitefly family, Aleyrodidae.

aleyrodids
plural of aleyrodid

allantonematid
Any nematode of the family Allantonematidae.

allantonematids
plural of allantonematid

alligatorid
Any reptile of the family Alligatoridae; a caiman or alligator.

alligatorids
plural of alligatorid

alligatorine
Any animal of the subfamily Alligatorinae

alligatorines
plural of alligatorine

allodapine
Any bee of the tribe Allodapini

allodapines
plural of allodapine

allokotosaur
An extinct reptile of the clade †Allokotosauria

allokotosaurs
plural of allokotosaur

alloposid
Any octopus in the monotypic family Alloposidae, which consists only of the seven-arm octopus, Haliphron atlanticus.

alloposids
plural of alloposid

almid
Any annelid worm of the family Almidae.

almids
plural of almid

alphadontid
Any extinct marsupial of the family †Alphadontidae.

alvinellid
Any of several polychaete worms, of the family Alvinellidae, endemic to hydrothermal vents in the Pacific Ocean

alvinellids
plural of alvinellid

alvinocarid
Any deep-sea shrimp of the genus Alvinocaris

alvinocaridid
Any shrimp of the family Alvinocarididae that inhabit deep-sea hydrothermal vents.

alvinocaridids
plural of alvinocaridid

alvinocarids
plural of alvinocarid

alvinoconchid
Any sea snail of the genus Alviniconcha.

alvinoconchids
plural of alvinoconchid

alytid
A primitive frog of the family Alytidae.

alytids
plural of alytid

amarsipid
Any glassfish of the family Amarsipidae

amarsipids
plural of amarsipid

amastrid
Any snail in the family Amastridae.

amastrids
plural of amastrid

amaurobiid
Any spider in the family Amaurobiidae.

amaurobiids
plural of amaurobiid

ambassid
Any fish in the family Ambassidae.

ambassids
plural of ambassid

amberwing
Any dragonfly of the genus Perithemis

amblycipitid
Any catfish in the family Amblycipitidae.

amblycipitids
plural of amblycipitid

amblyopinine
Any ant of the subfamily Amblyoponinae

amblyopinines
plural of amblyopinine

amblyoponine
Any ant of the subfamily Amblyoponinae.

amblyoponines
plural of amblyoponine

amblyopsid
Any fish in the family Amblyopsidae: several species of North American cavefish, and the swampfish or ricefish.

amblyopsids
plural of amblyopsid

amblypygid
Any arachnid of order Amblypygi.

amblystomid
Alternative form of ambystomid.

amblystomids
plural of amblystomid

ambonychiid
Any extinct bivalve of the family Ambonychiidae

ambonychiids
plural of ambonychiid

ambulocetid
Any extinct cetacean in the family Ambulocetidae.

ambulocetids
plural of ambulocetid

ambystomatid
Any salamander of the family Ambystomatidae

ambystomatids
plural of ambystomatid

ambystomid
Any salamander in the family Ambystomidae.

ambystomids
plural of ambystomid

ameletid
Any mayfly of the family Ameletidae.

ameroseiid
Any mite in the family Ameroseiidae.

ameroseiids
plural of ameroseiid

ammoxenid
Any spider in the family Ammoxenidae.

ammoxenids
plural of ammoxenid

amnicolid
Any snail in the family Amnicolidae.

amnicolids
plural of amnicolid

amorphoscelid
Any mantis in the family Amorphoscelidae.

amorphoscelids
plural of amorphoscelid

ampeliscid
Any amphipod in the family Ampeliscidae.

ampeliscids
plural of ampeliscid

amphibolid
Any snail in the family Amphibolidae.

amphibolids
plural of amphibolid