Umbonium, sometimes known as the "button top shells", is a genus of sea snails, marine gastropod molluscs in the family Trochidae, the top snails.
Awaous stamineus is a species of goby native to the Hawaiian Islands. It has been considered a synonym of Awaous guamensis but recent work based upon morphological and genetic differences has recognized Hawaiian populations as being distinct. Consequently, Hawaiian Awaous are now recognized as a valid, distinct species.
Omphalotropis is a genus of minute salt marsh snails with an operculum, terrestrial gastropod mollusks in the family Assimineidae.
Omphalotropis guamensis is a species of minute salt marsh snail with an operculum, a terrestrial gastropod mollusk, or micromollusk, in the family Assimineidae. This species is endemic to Guam.
Partula guamensis is a species of air-breathing tropical land snail, a terrestrial pulmonate gastropod mollusk in the family Partulidae.
Succinea guamensis is a species of air-breathing land snail, a terrestrial gastropod mollusk in the family Succineidae, the amber snails.
Micromelo is a genus of sea snails, bubble snails, marine opisthobranch gastropod mollusks in the family Aplustridae.
Micromelo guamensis, common name the Guam paper bubble, is a species of sea snail, a bubble snail, a marine opisthobranch gastropod mollusk in the family Aplustridae.
Fryeria is a genus of sea slugs, dorid nudibranchs, shell-less marine gastropod molluscs in the family Phyllidiidae.
Awaous guamensis is a species of goby native to the Pacific islands from the Marianas to Vanuatu, New Caledonia and Fiji where it can be found in fresh, brackish and marine waters. Males can reach a length of 24.5 cm (9.6 in) SL while females only reach 16.5 cm (6.5 in). Recent work based upon morphological and genetic differences has recognized Hawaiian populations of Awaous as being distinct from Awaous guamensis. Consequently, Hawaiian Awaous are now recognized as a distinct species Awaous stamineus.
Favartia guamensis is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
Sybra is a genus of beetles in the family Cerambycidae, containing the following species:
Sybra umbratica is a species of beetle in the family Cerambycidae. It was described by Pascoe in 1865.
Sybra uenoi is a species of beetle in the family Cerambycidae. It was described by Hayashi in 1956. It is known from Japan.
Sybra bioculata is a species of beetle in the family Cerambycidae. It was described by Pic in 1925. It contains four subspecies: Sybra bioculata bioculata, Sybra bioculata quadrinotata, Sybra bioculata sikkimana, and Sybra bioculata tigrina.
Sybra ordinata is a species of beetle in the family Cerambycidae. It was described by Bates in 1873.
Sybra pascoei is a species of beetle in the family Cerambycidae. It was described by Lameere in 1893.
Sybra subfasciata is a species of beetle in the family Cerambycidae. It was described by Bates in 1884.
Phyllidia guamensis is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Phyllidiidae.
