San Diego Night Snake
Night snake may refer to: * ''Siphlophis'', a snake genus, the spotted night snakes * ''Hypsiglena'', a snake genus * '' Hypsiglena torquata'', a species within this genus * ''Philodryas agassizii ''Philodryas agassizii'', the burrowing night snake, is a South American species of snake in the family Colubridae Colubridae (, commonly known as colubrids , from , 'snake') is a family of snakes. With 249 genera, it is the largest snake fam ...

Siphlophis
''Siphlophis'' is a genus of snakes of the family Colubridae.. The genus is endemic to the Americas. Geographic range Species of the genus ''Siphlophis'' are found in northern South America and Central America. Species The following seven species are recognized as being valid. *'' Siphlophis ayauma'' - Devil’s Head spotted night snake *'' Siphlophis cervinus'' - Panamanian spotted night snake, Panama spotted night snake *'' Siphlophis compressus'' - tropical flat snake *'' Siphlophis leucocephalus'' - common spotted night snake *''Siphlophis longicaudatus'' - Brazilian spotted night snake *'' Siphlophis pulcher'' - Guanabara spotted night snake *'' Siphlophis worontzowi'' - Worontzow's spotted night snake ''Nota bene ( ; plural: ) is the Latin language, Latin phrase meaning ''note well''. In manuscripts, ''nota bene'' is abbreviated in upper-case as NB and N.B., and in lower-case as n.b. and nb; the editorial usages of ''nota bene'' and ''notate bene'' fi ...'': ...
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Hypsiglena
''Hypsiglena'' is a genus of small, rear-fanged snakes, commonly referred to as night snakes, in the subfamily Dipsadinae of the family Colubridae. The genus consists of nine species. Three of these species have subspecies, which have been maintained pending further investigation.Mulcahy, Daniel G.; Martínez-Gómez, Juan E.; Aguirre-León, Gustavo; Cervantes-Pasqualli, Juan A.; Zug, George R. (2014). "Rediscovery of an Endemic Vertebrate from the Remote Islas Revillagigedo in the Eastern Pacific Ocean: The Clarión Nightsnake Lost and Found". ''PLOS ONE'' 9 (5): e97682. Species and subspecies The following species and subspecies are recognized as being valid. *'' Hypsiglena affinis'' Boulenger, 1894 *'' Hypsiglena catalinae'' W. Tanner, 1966 – Santa Catalina night snake *''Hypsiglena chlorophaea'' Cope, 1860 – desert night snake **''Hypsiglena chlorophaea chlorophaea'' Cope, 1860 – Sonoran night snake **''Hypsiglena chlorophaea deserticola'' W. Tanner, 1966 – G ...
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Hypsiglena Torquata
''Hypsiglena torquata'', the Sinaloan night snake, is a species of rear-fanged colubrid. It is endemic western Mexico. It is characterized by dark brown systematic blotches down its back and sides, a bar behind each eye, vertical pupils, and neck adornment. It is active in the twilight and at night. It is not dangerous to humans. Morphology and physiology Description Total length is 12–26 in (30–66 cm). It is pale gray, light brown, or beige in color, with dark grey or brown blotches on the back and sides. The night snake's head is rather flat and triangular-shaped and usually has a pair of dark brown blotches on the neck. It also has a black or dark brown bar behind the eyes that contrasts against the white or pale gray upper labial scales. It has prominent eyes with vertical pupils. The belly is white or yellowish. Females are usually longer and heavier than males. Venom Although the night snake poses no threat to humans, it is slightly venomous and uses th ...
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