Fig. 1From: The development and metamorphosis of the indirect developing acorn worm Schizocardium californicum (Enteropneusta: Spengelidae)Adult Schizocardium californicum. Light micrographs. a Female. b Male. Dashed lines mark the boundaries between the main body regions. bg, branchiogenital region; c, collar; g, genital region; h, hepatic region; hs, hepatic sacs; p, proboscis; t, trunk. Scale bars: 10Â mmBack to article page