Ultrastructure of the Goldfish, Carassius auratus (Cyprinidae), Spermatozoon

The ultrastructure of the goldfish spermatozoon (Carassius auratus) is described. The entire spermatozoon is approximately 60 μ in length and is comprised of a head, lobe and flagellum. The head is spherical and has a diameter of about 3.2 μ. A lobe, containing 2-4 mitochondria, extends from the pos...

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Bibliographic Details
Published in:	Copeia Vol. 1970; no. 2; pp. 274 - 279
Main Authors:	Fribourgh, James H., McClendon, Dale E., Soloff, Bernard L.
Format:	Journal Article
Language:	English
Published:	American Society of Ichthyologists and Herpetologists 01-06-1970
Subjects:	Acrosomes Carp Cell membranes Cytoplasmic vesicles Fish Flagella Goldfish Mitochondria Nuclear membrane Spermatozoa
Online Access:	Get full text
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Summary:	The ultrastructure of the goldfish spermatozoon (Carassius auratus) is described. The entire spermatozoon is approximately 60 μ in length and is comprised of a head, lobe and flagellum. The head is spherical and has a diameter of about 3.2 μ. A lobe, containing 2-4 mitochondria, extends from the posterior region of the head. The lobe encircles the flagellum but it is separated from it. The flagellum consists of the typical 9 + 2 axoneme. In several sections through the tail, the two central fibers appear to be connected by a single strand. The nine outer fibers are composed of subfibers A and B. Arms, extending toward the next fiber, arise from subfiber A of each doublet. A faint and irregular pattern, suggestive of the radial lamellae described for sea urchin sperm tails, is noted.
ISSN:	0045-8511 1938-5110
DOI:	10.2307/1441650