Figures 6–9 in Intraspecific clinal variation in Plagiodontes patagonicus (Gastropoda: Orthalicidae, Odontostominae), an endemic species from Argentina

Figures 6–9. Scanning electron micrographs of protoconchs of Plagiodontes patagonicus from southern Buenos Aires province, Argentina. (6) Young typical specimen from Bahía Blanca (i.e. typical P. patagonicus). (7) Adult, eroded shell from Bahía Blanca. (8) Young specimen from the Ventania Mountains (i.e. P. magnus). (9) Adult shell from the Ventania Mountains.