Ultrastructural aspects of the spermatozoon of Natica marochiensish (Gmelin) (Mollusca, Gastropoda) of the North littoral of Brazil

Abstract

Spermatozoa of Natica marochienssish (Gmelin, 1791) is described by light and electron microscopy. The spermatozoon is of the primitive type with head contains a conical acrosomal complex with an acrosomal vesicle of dense matrix having a basis occupied by the subacrosomal space. The middle piece shows the centriolar complex surrounded by mitochondria and the tail contains the axoneme with a 9+2.

Mollusca; Gastropoda; Natica marochiensish; ultrastructure; spermatozoa