Neptune grass (Posidonia oceanica) - IUCN Red list - Wikipedia article
Wednesday, May 8
Spain 2024
Serbia 2024
Serbia
Date of Issue: 8th May 2024
two stamps (48.- & 120.- RSD)
1. White Waterlily (Nymphaea alba) - IUCN Red list - Wikipedia article
2. European pond turtle (Emys orbicularis) - IUCN Red list - Wikipedia article
Tuesday, May 7
Malta 2024
Malta
Date of Issue: 9th May 2024
two stamps (1.50 & 2.- €)
the 1.50 € value stamp is also issued in a booklet of 5 stamps + 1 vignette
1. Sea Star (Hacelia attenuata) - Wikipedia article
2. Common Octopus (Octopus vulgaris) - IUCN Red list - Wikipedia article
Friday, May 3
Guernsey 2024

Date of Issue: 14th May 2024
two stamps (1.20 & 1.36 GBP) out of a set of six stamps, only those two bear the Europa logo
both stamps are also issued in a souvenir-sheet of 2 stamps (1.20 & 1.36 GBP)
both Europa stamps are issued in mini-sheets of 10 stamps1. Yellow Cluster Anemone (Parazoanthus axinellae) - IUCN Red list - Wikipedia article
2. Sea Fan (Eunicella verrucosa) - IUCN Red list - Wikipedia article
the Netherlands 2024
the Netherlands
Date of Issue: 13th May 2024
one stamp (International 1 value = 1.75 €)
this stamp is issued in a mini-sheet of 6 stamps
European bitterling (Rhodeus amarus) - IUCN Red list - Wikipedia article
Cyprus (Turkish post) 2024
Cyprus (Turkish post)
Date of Issue: 6th May 2024
two stamps (2x 17.- TRY)
both stamps are also issued in a mini-sheet of 8 stamps (4 of each) tête-bêche
Cyprus 2024
Cyprus
Date of Issue: 2nd May 2024
two stamps (0.34 & 0.64 €)
both stamps are also issued in mini sheets of 8 stamps
both stamps are also issued in one booklet of 8 stamps (4 of each) - stamps from the booklet aren't perforated on one side