title: The sperm and its formation in the scorpion Centruroides vittatus.
abstract: The development of sperm from a spermatid in the scorpion, Centruroides vittatus (Say), is described. The mature sperm is short with helical nucleus and a peculiar structure of the sperm tail. This peculiarity consists of alternating mitochondrial derivatives and membranous or network elements wrapped about the flagellum. We note the absence both of microtubules in the sperm of Centruroides and also of the centriole adjunct, which is present in other scorpion spermatids.
mesh_terms: D000818:Animals; D005407:Flagella / Q000648:ultrastructure; D008297:Male; D008928:Mitochondria / Q000648:ultrastructure; D012605:Scorpions / Q000166:cytology / Q000502:physiology*; D013077:Sperm Head / Q000648:ultrastructure; D013082:Sperm Tail / Q000648:ultrastructure; D013087:Spermatids / Q000648:ultrastructure; D013091:Spermatogenesis; D013094:Spermatozoa / Q000648:ultrastructure*