horned lizard

(redirected from Phrynosoma)
Also found in: Dictionary, Thesaurus, Wikipedia.
Related to Phrynosoma: horned toad

horned lizard

or

horned toad,

broad, flat-bodied lizards of the genus Phrynosoma, found in arid regions from extreme SW Canada to Guatemala. There are several species in the United States W of the Mississippi. The body is 3 to 5 in. (7.6 to 12.7 cm) long; it has a short, thin tail, a short neck, and short legs. There are spines on the head, sides, and back. Horned lizards are protectively colored, usually in dull grays and browns. They feed on insects, especially ants, and are often found buried in the sand, with only their heads exposed. In some species the female lays eggs; in others the eggs are incubated internally and the young are born alive. When alarmed, members of some species eject a thin stream of blood from the nictitating membrane of the eye for a distance of several feet. Horned lizards are classified in the phylum ChordataChordata
, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals.
..... Click the link for more information.
, subphylum Vertebrata, class Reptilia, order Squamata, family Iguanidae.
References in periodicals archive ?
5 (1989-91) year study on the Coast Horned Lizard, Phrynosoma coronatum (=CHL), was conducted in Orange, Riverside, San Diego, and San Bernardino Counties, California, hence within the range of what was formerly known as P.
Para la revision taxonomica se considero la propuesta de Horowitz (1955) el primer autor que investigo la variacion geografica de Phrynosoma orbiculare en Mexico.
Notes on systematics of horned lizards allied to Phrynosoma orbiculare (Lacertilia: Iguanidae).
coronatum commenced reproduction earlier in spring, perhaps concurrent with northern species of Phrynosoma (sensu Montanucci 2004, Leache et al.
Phrynosoma douglasii, the pigmy short-horned lizard, is a recently elevated species, previously grouped as a subspecies (=P.
An Arrangement of the Subspecies of the Horned Toad, Phrynosoma orbiculare (Iguanidae).
TABLE 1--Cloud cover, ultraviolet index (UVI), and temperature data for the control sites monitored on both focal days (Day 1) and retrace days (Day 2) for three Phrynosoma cornutum followed for most of a focal day at the Matador Wildlife Management Area, Texas.
lungless salamander -- -- 1 Plethodontidae genus et species unidentified -- -- 1 Salamandlidae Taricha torosa, California newt x -- -- REPTILIA, SQUAMATA Phrynosomatidae Phrynosoma coronatum, coastal horned lizard x -- -- Sceloporus graciosos, sagebrush lizard x -- -- S.
Sceloporus jarrovii is a new host record for Macdonaldius grassi, Piratuba prolifica, Skrjabinoptera phrynosoma and Thubunaea iguanae.
2000), Phrynosoma coronatum (Montanucci, 2004), and Urosaurus nigricaudus (Lindell et al.
Atractis penneri is widespread and has been reported in lizards of the genera Callisaurus, Crotaphytus, Gambelia, Holbrookia, Phrynosoma, Sceloporus, Uma and Uta occurring from the western United States, northern Mexico and Baja California (Baker 1987).