Is “Penicillus sp.” in the public domain?

Yes. “Penicillus sp.” is public domain and released under CC0, so it is free to download and reuse for any purpose, including commercially, with no permission needed.

Where is “Penicillus sp.” from?

It is catalogued from the open collection of Smithsonian Open Access and is free to reuse under CC0.

Can I use “Penicillus sp.” commercially for free?

Yes. As a CC0 public-domain work it can be used commercially, modified and redistributed with no fee and no attribution required.

“Penicillus sp.” by 81 - Caribbean (9 Jun 1995) is a public-domain (CC0) artwork, free to view, download and reuse for any purpose. It is catalogued from the open collection of Smithsonian Open Access.

Penicillus sp.

81 - Caribbean

Title	Penicillus sp.
Artist	81 - Caribbean
Date	9 Jun 1995 20th century
Origin	Leeward Islands. British West Indies. Antigua. West side. Extensive shallow platform. Diving parties spread out 4-5 milies from ancorage coordinates. Stn. SD#16., Antigua and Barbuda, West Indies - Neotropics
Holding institution	Smithsonian Open Access
Rights	Public domain (CC0)