Resumen
The commercial catch in Almejas Bay, Mexico, was monitored from August 1990 through December. Sizes in male and female M. califomica were 37-86 and 30-128 cm DW, respectively; in M. longirostris they respectively were 31-59 and 31-88 cm. M. californica give birth, ovulate and mate during spring-summer. In both species, males begin rnaturity around 50 cm DW.
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Derechos de autor 1996 Revista de Biología Tropical