Figure 4 from: Gonzalez J, Quiroga S, Norenburg J (2014) A shore-based preliminary survey of marine ribbon worms (Nemertea) from the Caribbean coast of Colombia. ZooKeys 439: 83-108. https://doi.org/10.3897/zookeys.439.5965

Figure 4 - A–C Nemertopsis bivittata: B dorsal detail of the head and proboscis, C detail of the stylets D Ototyphlonemertes erneba (modified from Corrêa 1950 and Kirsteuer 1977) E–G Ototyphlonemertes lactea: E entire worm F detail of the statocysts G detail of the stylets H–J Zygonemertes fragariae: H entire worm I detail of the head J detail of the stylets K–M Zygonemertes virescens: K entire worm L detail of the head M detail of the stylets. ac accessory stylet, b base of the stylet, br brain, c sensorial cirrus, e eyes, p proboscis, pa proboscis papilla, s sylet, st statocysts.