Figure 4 in The tail tells the tale: taxonomy and biogeography of some Atlantic Chelidonura (Gastropoda: Cephalaspidea: Aglajidae) inferred from nuclear and mitochondrial gene data

Figure 4. Scanning electron micrographs of the protoconch morphology or apical shell morphology of some specimens examined. Arrows indicate transitions in growth line pattern. A–D, Chelidonura africana: A, specimen from Portugal (MNCN 15.05/46493); B, specimen from Portugal (MNCN 15.05/46488); C, specimen from Portugal (MNCN 15.05/44368); D, juvenile specimen from Azores, Portugal (MNCN 15.05/44367). E–G, Chelidonura berolina: E, specimen from Bahamas (LACM 172272); F, specimen from Bahamas (LACM 176427); G, specimen from Bahamas (LACM 176426). H–J, Chelidonura normani sp. nov.: H, specimen from Bahamas (LACM 3126); I-J, specimen from Bahamas (LACM 3127).