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Merck Manual
Veterinary Manual
The trusted provider of veterinary information since 1955

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VETERINARY PET
Parting hair to see lice (Trichodectes canis) on a dog
parting-hair-to-see-lice-trichodectes-canis-on-a-dog-ketzis-sized
Parting hair to see lice (Trichodectes canis) on a dog

    It is often necessary to part the animal's hair to see lice and nits, such as the Trichodectes canis nits evident on this dog.

Courtesy of Dr. Jennifer Ketzis.

In these topics
Lice in Dogs and Cats

Merck & Co., Inc., Rahway, NJ, USA (known as MSD outside of the US and Canada) is dedicated to using the power of leading-edge science to save and improve lives around the world.  The Merck Veterinary Manual was first published in 1955 as a service to the community.  The legacy of this great resource continues as the Merck Veterinary Manual in the US and Canada and the MSD Vet Manual outside of North America.

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