pupiform
/ˈpjuːpɪfɔːm/(also pupaeform) Zoology and Palaeontology
adjective
Resembling the pupa of an insect; especially (of a gastropod shell or protoconch) somewhat cylindrical and bluntly rounded.
Origin
Mid 19th century; earliest use found in Samuel Woodward (1821–1865), naturalist and palaeontologist. From pupa + -iform.