Spermatocytes: the cells arising from the spermatogonia.
"Explanation of Terms Used in Entomology" by John. B. Smith
Figures 215 and 216 are equatorial plates of the first spermatocyte mitosis.
"Studies in Spermatogenesis (Part 1 of 2)" by Nettie Maria Stevens
The equatorial plates of the two resulting kinds of second spermatocytes appear in figures 75 and 76.
"Studies in Spermatogenesis" by Nettie Maria Stevens
Primary spermatocytes appear in the tubules from mid-May to early June.
"Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz" by John M. Legler
In each primary spermatocyte the pairing of the chromosomes already alluded to occurs as indicated in Fig.
"Being Well-Born" by Michael F. Guyer