The global diversity of sea pens (Cnidaria: Octocorallia: Pennatulacea).

by Gary C Williams
Published 2011-01-01

The deep-sea pennatulacean genus Porcupinella – with the description of a new species from Tasmania (Anthozoa, Octocorallia, Chunellidae)

by Gary C. Williams
Published 2021-02-01

Umbellula pomona sp. nov., a new sea pen from Mar del Plata Submarine Canyon (Cnidaria: Octocorallia: Pennatulacea)

by Jessica Risaro, Gary C. Williams, Daniela Pereyra, Daniel Lauretta
Published 2020-10-01

New records of Pennatulacea (Anthozoa: Octocorallia) from the African Atlantic coast, with description of a new species and a zoogeographic analysis

by Pablo J. López-González, Josep María Gili, Gary C. Williams
Published 2001-03-01