This data includes forelimb measurements for 31 species in the family Felidae, and 17 species in the family Canidae, Order Carnivora. This data was collected by Julie Meachen-Samuels between 2003 and 2008. Address all questions to meachensamuels@nescent.org All measurements are in mm, missing data are left as blank spaces. Measurement legend: U – ulna R – radius Hum – humerus Mc2 – metacarpal 2 Mc3 – metacarpal 3 Phprox - proximal phalanx Scapho - scapholunar GL – greatest length LO – length of olecranon process BS – mediolateral diameter at midshaft MLP – mediolateral measurement of the proximal end APP – anteroposterior measurement of the proximal end MLD – mediolateral measurement of the distal end APD – anteroposterior measurement of the distal end MLFD – mediolateral measurement of the articular surface of the distal end APFD – anteroposterior measurement of the articular surface of the distal end HTL – widest measurement of the trochlea and condyle PAL – longest length of the scapholunar articular surface PAW – width of the scapholunar articular surface Museum legend: FMNH – Field Museum of Natural History LACM – Natural History Museum of Los Angeles County MVZ – Museum of Vertebrate Zoology, University of California, Berkeley UCLA – Donald R. Dickey Collection of Birds and Mammals, University of California, Los Angeles USNM – U.S. Museum of Natural History, Smithsonian