Figure 5 from: Cunha CM, Salvador RB (2018) Type specimens of fossil "Architectibranchia" and Cephalaspidea (Mollusca, Heterobranchia) in the Academy of Natural Sciences of Philadelphia. Zoosystematics and Evolution 94(2): 505-527. https://doi.org/10.3897/zse.94.27401

Figure 5 Types. A–B. Holotype of Bullamacrostoma, H 26.2 mm, ANSP IP30727. C–D. Holotype of Bullopsiscretacea, H 18.0 mm, ANSP IP18924. E–F. Holotype of Retusabiforis, H 2.9 mm, ANSP IP3192. G. Paralectotype of Retusagalba, H 14.3 mm, ANSP IP53816. H. Lectotype of Retusagalba, H 15.0 mm, ANSP IP30548. I–J. Lectotype of Retusasthillairii, H 14.0 mm, ANSP IP5486. K. Syntype of Retusasubspissa, H 4.8 mm, ANSP IP30641. L. Holotype of Volvulellacylichnoides, H 4.2 mm, ANSP IP3177. M–N. Syntype of Volvulellacylindrica, H 4.7 mm, ANSP IP3179.