Taxa described in 1904

Laetiporus is a genus of edible mushrooms found throughout much of the world. Some species, especially Laetiporus sulphureus, are commonly known as sulphur shelf, chicken of the woods, the chicken mushroom, or the chicken fungus because it is often described as tasting like and having a texture similar to that of chicken.

Abortiporus is a genus of fungi in the family Meruliaceae. The widely distributed genus contains three species. Species in the genus grow on the wood of hardwoods and conifers, either alone or around the stumps and living trees. It causes a white rot in dead wood and a white trunk rot in living wood. The genus was circumscribed in 1904 by William Alphonso Murrill. The generic name is derived from the Latin abortus (arrested development of any organ) and the Ancient Greek (pore).

Polytremis is a mainly Chinese genus of grass skipper in the family Hesperiidae.

Itaballia is a genus of butterflies in the family Pieridae found in Central and South America.

Gagnepainia is a genus of flowering plants in the family Zingiberaceae. It has three known species, all native to Indochina.

Arrhenes is a genus of skippers in the family Hesperiidae.

Synapte is a genus of skippers in the family Hesperiidae.

genus of hesperiid butterflies

Zophopetes is a genus of skippers in the family Hesperiidae.

Serdis is a genus of skipper butterflies in the family Hesperiidae.

Psoralis is a genus of skippers in the family Hesperiidae.

Daldorfia is a genus of parthenopid crab, belonging to the subfamily Daldorfiinae.

Chondrolepis is a genus of skippers in the family Hesperiidae. The name Chondrolepis (meaning "thick scales") derives from Greek words: chondros (meaning "thick") and '''' (meaning "scale").

Leptalina is a genus of skippers in the family Hesperiidae. It contains only one species, Leptalina unicolor, which is found in eastern China, Korea, Japan and the Russian Far East (Amur). The habitat consists of humid meadows. The species is endangered by habitat decline, and worldwide populations have decreased significantly.

Bolosoma is a genus of pedunculated siliceous sponges belonging to the family Euplectellidae. This genus lives in deep-sea environments and provides a habitat for a plethora of other benthic species, giving Bolosoma an incredibly important ecological role in the ecosystems it is a part of. thumb|Brittle stars and other deep-sea invertebrates use this Bolosoma species as a habitat

Malaza is a genus of skippers in the family Hesperiidae.

Torulaspora is a genus of ascomycetous yeasts in the family Saccharomycetaceae.

Scutigerina is a genus of centipedes in the family Scutigerinidae. It was described in 1904 by Italian myriapodologist Filippo Silvestri.

Pentanymphon is a monotypic genus of sea spider (class Pycnogonida) in the family Nymphonidae. The only species in this genus is Pentanymphon antarcticum. As the name of this genus suggests, this genus is among the four genera of sea spiders with five pairs of legs in adults instead of the usual four leg pairs. The species P. antarcticum was the second polymerous (i.e., extra-legged) sea spider to be discovered.

Proutista is a small genus of planthoppers from the family Derbidae, tribe Zoraidini, with 10 species, as of 2024. The type species, Proutista moesta is widely distributed and often very common, its distribution ranging from Tanzania in Africa, over some Indian Ocean islands (Seychelles, Maldives) and southern parts of western Asia (India, Sri Lanka) to far eastern Asia (China, Taiwan, Japan) and parts of the western Pacific (Philippines, Guam, Palau, Indonesia, Papua New Guinea). Seven of the remaining species are also found in tropical parts of Asia and only two additional species have been

Nigrofomes is a genus of fungi in the family Polyporaceae. It was circumscribed by mycologist William Alphonso Murrill in 1904 with N. melanoporus as the type species. This fungus, first described as Polyporus melanoporus from collections made in Cuba, is common in tropical America. N. nigrivineus, found in Papua New Guinea, was added to the genus in 2013 and N. sinomelanoporus from China was added in 2018.

Sinoennea is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Diapheridae.

Orthonecroscia is a genus of stick insect first described by William Forsell Kirby in 1904.