| Porthidium hespere | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Squamata |
| Suborder: | Serpentes |
| Family: | Viperidae |
| Genus: | Porthidium |
| Species: | P. hespere |
| Binomial name | |
| Porthidium hespere (Campbell, 1976) | |
 | |
| Synonyms [1] | |
| |
Porthidium hespere is a venomous pitviper species found in western Mexico. No subspecies are currently recognized. [3]
Known from only four specimens: two females with locality data and two other specimens without. The former were moderately stout and were 31.5 and 57.9 cm (12+1⁄2 and 22+3⁄4 in) in total length. The snout is unelevated to only slightly elevated. [2]
Found in western Mexico (Colima). The type locality given is "on a west-facing slope of the foothills ca. 12 airline km NE of Tecomán, Municipio de Ixlahuacán [= Ixtlahuacán], Colima, Mexico, ... at an elevation of approximately 300 m." [1]
This species is classified as Data Deficient (DD) on the IUCN Red List of Threatened Species (v3.1, 2001). [4] Species are listed as such when there is inadequate information to make a direct, or indirect, assessment of its risk of extinction based on its distribution and/or population status. It may be well studied, and its biology well known, but appropriate data on abundance and/or distribution are lacking. Data Deficient is therefore not a category of threat. Listing of taxa in this category indicates that more information is required and acknowledges the possibility that future research will show that threatened classification is appropriate. It is important to make positive use of whatever data are available. In many cases great care should be exercised in choosing between DD and a threatened status. If the range of a taxon is suspected to be relatively circumscribed, and a considerable period of time has elapsed since the last record of the taxon, threatened status may well be justified. The population trend is unknown. Year assessed: 2007. [5]
Crotalus basiliscus is a species of venomous pit viper in the family Viperidae. The species is endemic to western Mexico. The specific name, basiliscus, is derived from the Greek word for king, βασιλισκος, and alludes to this snake's large size and potent venom. No subspecies are currently recognized.
Crotalus atrox tortugensis is a venomous pit viper subspecies found only on Tortuga Island in the Gulf of California.
Crotalus lannomi, known commonly as the Autlán rattlesnake, is a species of venomous snake, a pit viper in the family Viperidae. The species is endemic to southwestern Mexico. There are no subspecies that are recognized as being valid.
The Mexican lance-headed rattlesnake or lance-headed rattlesnake is a venomous pit viper species found in central Mexico. No subspecies is currently recognized.
Crotalus pusillus is a venomous pit viper species found in west-central Mexico. No subspecies is currently recognized.
Crotalus transversus is a venomous pit viper species found in central Mexico, known from less than 20 specimens. No subspecies are currently recognized.
Crotalus lorenzoensis is a species of pitviper, a venomous snake in the subfamily Crotalinae of the family Viperidae. The species is endemic to San Lorenzo Sur Island, Mexico.
Metlapilcoatlus nummifer, commonly known as Mexican jumping pitviper or jumping viper, is a venomous pit viper species endemic to Mexico.
Metlapilcoatlus olmec is a venomous pitviper species found in Mexico. No subspecies are currently recognized.
Bothriechis rowleyi is a species of pit viper, a venomous snake in the subfamily Crotalinae of the family Viperidae. The species is endemic to Mexico. There are no subspecies that are recognized as being valid.
Bothriechis marchi is a species of pitviper, a venomous snake in the subfamily Crotalinae of the family Viperidae. The species is endemic to Central America. There are no subspecies that are recognized as being valid.
Cerrophidion tzotzilorum is a venomous pit viper species which is native to southern Mexico. There are no subspecies that are recognized as being valid.
Porthidium dunni is a species of venomous pitviper in the family Viperidae. The species is endemic to Mexico. There are no recognized subspecies.
Porthidium nasutum is a venomous pitviper species found in southern Mexico, Central America and northern South America. No subspecies are currently recognized.
Porthidium yucatanicum is a venomous pitviper species found in Mexico. No subspecies are currently recognized.
Mixcoatlus melanurus is a venomous pitviper species endemic to the mountains of southern Mexico. No subspecies are currently recognized.
Porthidium ophryomegas is a venomous pitviper species found in Central America. No subspecies are currently recognized.
Bothrops pulcher is a venomous pitviper species found in South America. The specific name is Latin, meaning "beautiful", in reference to the color pattern. No subspecies are currently recognized.
Bothrops bilineatus smaragdinus is a venomous pitviper subspecies found in the northern and western Amazon region of South America.
Bothrocophias campbelli, commonly known as Campbell's toadheaded viper, the Ecuadorian toadheaded pitviper, and víbora boca de sapo in Spanish, is a species of venomous pitviper in the family Viperidae. The species is endemic to South America. No subspecies are currently recognized.
