Arthropods from all over

Drawing of cyclopid copepod crustacean 'Afrocyclops pauliani,' which has not been seen since its discovery in a freshwater pond near Antananarivo, Madagascar, 1951, from Apokryltaros. Cave-dwelling candonid ostracod crustacean, 'Namibcypris costata,' from underground springs in Kaokoveld, Namibia, from Apokryltaros. 'Megadytes ducalis,' a large dark water beetle from BBC Brasi Socorro isopod ('Thermosphaeroma thermophilum') - large male, from Bronwyn H. Bleakley.

Afrocyclops pauliani

A single Afrocyclops pauliani was discovered in 1951 in a small freshwater pond near Antananarivo, Madagascar, and it has not been seen since.

Namibcypris costata

Namibcypris costata was a freshwater ostracod crustacean, a kind of seed shrimp, possibly endemic to the southern Kaokoveld in northern Namibia.

Megadytes ducalis

A water beetle just under two inches long from Santo Antonio da Barra, Brazil. It could be extinct, or it could have been found in the bottom of a canoe in the Amazon.

Thermosphaeroma thermophilum

The Socorro isopod or Socorro sowbug is a crustacean extinct in the wild, having been found in only one place, the thermal waters of Sedillo Spring in New Mexico where they thrived in water between 79 degrees and 91 degrees Fahrenheit until the city of Socorro diverted the spring for drinking water in 1947 after which the Socorro sowbug survived in an old water pipe that led to a horse trough and two concrete bathing pools, becoming extinct in the wild in 1988 when a tree root cut off water in the pipe.