Diamond-backed Watersnake - Nerodia rhombifer


*The colored areas of the map above represent parishes with currently known records for the given species
 (Source: Jeff Boundy, LA Dept. of Wildlife and Fisheries). By no means does it represent the full range of the species in the state, nor does it necessarily mean that a species can be found throughout the parish with the record. This is provided as a guide to where you might be able to find these species in the state and to aid in identification. A descriptive explanation of the range of each species can be found in the text below.

Other Common Names: Fish Snake

Subspecies:  Only the Northern Diamond-backed Watersnake, Nerodia rhombifer rhombifer, occurs within Louisiana.


Similar Species: 

Species Range: 

Louisiana Range:  Statewide.


Natural History: 

Best Time and Place to Observe:

Global Conservation Status:  Diamond-backed Watersnakes are listed as Least Concern by the IUCN Red List. Their NatureServe Global Conservation Status Rank is G5 (Secure).

Federal Conservation Status:  None

Louisiana Conservation Status:  Diamond-backed Watersnakes do not have any special status in Louisiana.

Author's Remarks: I have observed this species nearly everywhere with permanent water I have herped in the state, though they seem to be less numerous than Broad-banded Watersnakes in most of the areas I am familiar.

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