Differences of spermatheca and sperm cells in the genera Ditylenchus filipjev, 1936 and Tylenchus Bastian, 1865 (Tylenchidae:Nematoda).
D000818:Animals; D008297:Male; D009348:Nematoda / Q000033:anatomy & histology* / Q000145:classification; D013094:Spermatozoa / Q000166:cytology*