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ABSTRACT. Rocha P.S., Araújo G.V.D., Sinquini P.H.C., Ferreira L.T., Santos C.M., Souza-Júnior P. & Abidu-Figueiredo M. [Compared craniometry in the Brazilian shorthair and Siamese cats.] Craniometria comparada em gatos Pelo Curto Brasileiro e Siamês. Revista Brasileira de Medicina Veterinária 38(Supl.2):57- 60, 2016. Universidade Federal Rural do Rio de Janeiro, BR 465, Km 7, Seropé- dica, RJ 23897-970, Brasil. E-mail: firstname.lastname@example.org The phenotypic appearance of the feline head depends on the shape of the skull and is strongly related to breed specific skeletal features. The aim of this study was to compare the craniometric measurements in Brazilian Shorthairs and Siamese cats. The dissections were performed in 30 cadavers, 15 Brazilian Shorthair (“PCB”) - seven males and eight females and 15 cadavers of Siameses, seven females and eight males. Cats were positioned in right lateral decubitus and made a chest incision for removal from 6th to 10th ribs to cannulation of the thoracic aorta. Then, through the cannula the animals were fixed with formaldehyde 10% solution. After five days immersed in formaldehyde 10% solution, all the animals were washed in running water to conduct craniometry. The craniometric measurements were compared between sexes and races by unpaired t test. In the present study it was observed that the males of the Siamese breed showed skull length and width face larger than females.