231. First spermatocyte, spireme stage.
232. First spermatocyte, prophase.
233. First spermatocyte, beginning of metakinesis.
234. First spermatocyte, equatorial plate, x the odd chromosome.
235. A pair of second spermatocytes in metaphase, two chromosomes connected, x the odd chromosome.
Ellychnia corrusca (Family Lampyridæ).
236. Equatorial plate of spermatogonium, 19 chromosomes.
