Molina et al.: Age and growth of Mustelus schmitti 
377 
Acknowledgments 
The financial support provided by Consejo Nacional de 
Investigaciones Cientfficas y Tecnicas, Agencia Nacio- 
nal de Promocion Cientffica y Tecnologica (project PAE 
22666/0), and Universidad Nacional del Sur (project 
PGI 24/191) is gratefully acknowledged. We also thank 
N. Hozbor (Institute Nacional de Investigacion y De- 
sarrollo Pesquero), who showed us preparation and ob- 
servation techniques, and staff at the Laboratorio de 
Petrotomia (Universidad Nacional del Sur) for their 
generous assistance in vertebral inclusion. 
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