Barbour's tropical racer (''Mastigodryas bruesi'') is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

of snake in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Colubridae Colubridae (, commonly known as colubrids , from , 'snake') is a family of snakes. With 249 genera, it is the largest snake family. The earliest fossil species of the family date back to the Late Eocene epoch, with earlier origins suspected. C ...

. The species is

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

to the

Caribbean The Caribbean ( , ; ; ; ) is a region in the middle of the Americas centered around the Caribbean Sea in the Atlantic Ocean, North Atlantic Ocean, mostly overlapping with the West Indies. Bordered by North America to the north, Central America ...

Etymology

The

specific name Specific name may refer to: * in Database management systems, a system-assigned name that is unique within a particular database In taxonomy, either of these two meanings, each with its own set of rules: * Specific name (botany), the two-part (bino ...

, ''bruesi'', is in honor

American American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, p ...

entomologist Entomology (from Ancient Greek ἔντομον (''éntomon''), meaning "insect", and -logy from λόγος (''lógos''), meaning "study") is the branch of zoology that focuses on insects. Those who study entomology are known as entomologists. In ...

Charles Thomas Brues Charles Thomas Brues (June 20, 1879, Wheeling, West Virginia – July 22, 1955, Crescent City, Florida, Crescent City, Florida) was an American entomologist. Biography Brues studied at the University of Texas at Austin and at Columbia Univers ...

, who was one of the collectors of the

holotype A holotype (Latin: ''holotypus'') is a single physical example (or illustration) of an organism used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of s ...

. Beolens B, Watkins M,

Grayson M Grayson may refer to: Places Canada * Grayson, Saskatchewan * Rural Municipality of Grayson No. 184, Saskatchewan United States * Grayson, California * Grayson, Georgia ** Grayson High School * Grayson, Kentucky * Grayson, Louisiana * Gray ...

(2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University Press. xiii + 296 pp. . (''Mastigodryas bruesi'', p. 41).

Geographic range

''M. bruesi'' is native to

Saint Vincent and the Grenadines Saint Vincent and the Grenadines, sometimes known simply as Saint Vincent or SVG, is an island country in the eastern Caribbean. It is located in the southeast Windward Islands of the Lesser Antilles, which lie in the West Indies, at the south ...

, and

Grenada Grenada is an island country of the West Indies in the eastern Caribbean Sea. The southernmost of the Windward Islands, Grenada is directly south of Saint Vincent and the Grenadines and about north of Trinidad and Tobago, Trinidad and the So ...

Description

''M. bruesi'' can reach a snout-to-vent length (SVL) of about .

Dorsally Standard anatomical terms of location are used to describe unambiguously the anatomy of humans and other animals. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position. This position provi ...

, it is blue-gray to brown, with lighter lateral stripes. Ventrally, it is whitish.

Behavior and diet

''M. bruesi'' is diurnal, hunting

frog A frog is any member of a diverse and largely semiaquatic group of short-bodied, tailless amphibian vertebrates composing the order (biology), order Anura (coming from the Ancient Greek , literally 'without tail'). Frog species with rough ski ...

s and

lizard Lizard is the common name used for all Squamata, squamate reptiles other than snakes (and to a lesser extent amphisbaenians), encompassing over 7,000 species, ranging across all continents except Antarctica, as well as most Island#Oceanic isla ...

Habitat

The preferred natural

habitat In ecology, habitat refers to the array of resources, biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species' habitat can be seen as the physical manifestation of its ...

of ''M. bruesi'' is

forest A forest is an ecosystem characterized by a dense ecological community, community of trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, ...

, both mesic and

xeric Deserts and xeric shrublands are a biome defined by the World Wide Fund for Nature. Deserts and xeric (Ancient Greek 'dry') shrublands form the largest terrestrial biome, covering 19% of Earth's land surface area. Ecoregions in this habita ...

. It can be found on the ground, and in bushes, where it sleeps at night.

Reproduction

''M. bruesi'' is

oviparous Oviparous animals are animals that reproduce by depositing fertilized zygotes outside the body (i.e., by laying or spawning) in metabolically independent incubation organs known as eggs, which nurture the embryo into moving offsprings kno ...

Locality records

''M. bruesi'' has been recorded in the southwest corner of Saint Vincent and is widespread all over the

Grenadines The Grenadines () is a chain of small islands that lie on a line between the larger islands of Saint Vincent and Grenada in the Lesser Antilles. Nine are inhabited and open to the public (or ten, if the offshore island of Young Island is counted ...

islands. It is also found on the southern half of Grenada, which is the farthest south it is distributed. It has been introduced to

Barbados Barbados, officially the Republic of Barbados, is an island country in the Atlantic Ocean. It is part of the Lesser Antilles of the West Indies and the easternmost island of the Caribbean region. It lies on the boundary of the South American ...

, probably around thirty years ago, where it has been incorrectly identified as '' Liophis perfuscus''.

References

Sources

*. *. *

External links

*
''Mastigodryas bruesi''
at the

Encyclopedia of Life The Encyclopedia of Life (EOL) is a free, online encyclopedia intended to document all of the 1.9 million living species known to science. It aggregates content to form "pages" for every known species. Content is compiled from existing trusted ...

Mastigodryas Snakes of the Caribbean Reptiles of Barbados Fauna of Saint Vincent and the Grenadines Fauna of Grenada Reptiles described in 1914 Taxa named by Thomas Barbour {{Colubrinae-stub