title: Spermatogenesis in a monogenean, Diclidophora merlangi.
mesh_terms: D000818:Animals; D005399:Fishes; D008297:Male; D013087:Spermatids / Q000648:ultrastructure; D013090:Spermatocytes / Q000648:ultrastructure; D013091:Spermatogenesis; D013093:Spermatogonia / Q000648:ultrastructure; D013094:Spermatozoa / Q000648:ultrastructure; D013737:Testis / Q000166:cytology; D014200:Trematoda / Q000502:physiology* / Q000648:ultrastructure