The green water snake (Nerodia cyclopion) is a common species of nonvenomous natricine snake endemic to the southeastern United States.
N. cyclopion is distributed from the Florida panhandle westward to Louisiana, and northward through the Mississippi Valley into southern Illinois.[6]
More precisely, it is found in southwestern Alabama, southeastern Arkansas, northwestern Florida, southern Illinois, southwestern Indiana, western Kentucky, Louisiana, southern Mississippi, southeastern Missouri, western Tennessee, and southeastern Texas.[7]
The type locality is New Orleans, Louisiana.[6]
N. cyclopion differs from most other species of North American water snakes by having one or more small scales under the eye, giving the appearance of a ring of small plates around the eye, a character shared only with the species N. floridana.
A heavy-bodied snake, N. cyclopion is dark green, olive, or brown dorsally. Ventrally, it is yellowish on the anterior third, and the on remainder dark brown with yellow or white semicircles.[4]
N. cyclopion averages 76–140 cm (30-55 inches) in total length (including tail).[8]
N. cyclopion prefers still waters such as bayous, lakes, marshes, ponds, sluggish streams, and swamps. It is sometimes found in brackish water.[9]
The green water snake preys upon crayfish, frogs, and fish.[9]
The former subspecies, Nerodia cyclopion floridana (Goff, 1936) - Florida green water snake, has been elevated to a full species, Nerodia floridana.
The green water snake is ovoviviparous. Mating takes place on land in April. The young are born in July or August, and are about 25 cm (10 in) long. Brood size varies from 7 to 101, depending on the size of the female. The females, which are larger than the males and have two more dorsal scale rows, may weigh over 4.1 kg (9 lb).[7]
The green water snake (Nerodia cyclopion) is a common species of nonvenomous natricine snake endemic to the southeastern United States.
Nerodia cyclopion Nerodia generoko animalia da. Narrastien barruko Natricidae familian sailkatuta dago.
Nerodia cyclopion Nerodia generoko animalia da. Narrastien barruko Natricidae familian sailkatuta dago.
Nerodia cyclopion est une espèce de serpents de la famille des Natricidae[1].
Cette espèce est endémique des États-Unis. Elle se rencontre dans le sud de la Caroline du Sud, dans le nord-ouest de la Floride, dans le Sud de l'Alabama, en Géorgie, dans l'est du Texas, en Louisiane, dans l'Arkansas, dans le sud-est du Missouri, dans le Sud de l'Illinois, dans le Mississippi, dans l'ouest du Tennessee et dans l'Ouest du Kentucky[1].
Nerodia cyclopion est une espèce de serpents de la famille des Natricidae.
Nerodia cyclopion là một loài rắn trong họ Rắn nước. Loài này được Duméril, Bibron & Duméril mô tả khoa học đầu tiên năm 1854.[5]
Bài viết liên quan họ Rắn nước này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. Nerodia cyclopion là một loài rắn trong họ Rắn nước. Loài này được Duméril, Bibron & Duméril mô tả khoa học đầu tiên năm 1854.
绿水蛇(Nerodia cyclopion)是美国东南部一种常见的无毒蛇。
本种与所有其他北美水蛇不同处是眼睛下一片或多片小鳞，使眼睛周围的小板环的外观。这些蛇身体沉重，背侧为墨绿、橄榄绿或褐色。腹侧，前三分之一是黄色，其余部分是黑褐色，黄色或白色的半圆。平均身长76-140厘米，佛罗里达绿水蛇的身长则可达到180厘米。
绿水蛇是卵胎生。交配于4月在陆地进行。幼蛇出生在七八月，约25厘米长。一窝孵化数从7到101不等，视母亲身体的大小而定。雌性大于雄性，并有两个背鳞，重量超过410公斤。
绿水蛇(Nerodia cyclopion)是美国东南部一种常见的无毒蛇。
本种与所有其他北美水蛇不同处是眼睛下一片或多片小鳞，使眼睛周围的小板环的外观。这些蛇身体沉重，背侧为墨绿、橄榄绿或褐色。腹侧，前三分之一是黄色，其余部分是黑褐色，黄色或白色的半圆。平均身长76-140厘米，佛罗里达绿水蛇的身长则可达到180厘米。
绿水蛇是卵胎生。交配于4月在陆地进行。幼蛇出生在七八月，约25厘米长。一窝孵化数从7到101不等，视母亲身体的大小而定。雌性大于雄性，并有两个背鳞，重量超过410公斤。
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