The hooktooth shark, is a weasel shark of the family Hemigaleidae, the only extant member of the genus Chaenogaleus, but there is an extinct species, Chaenogaleus affinis. The hooktooth shark is found in the tropical Indo-West Pacific oceans between latitudes 30° N and 10° S, including the Persian Gulf, Pakistan, India, Sri Lanka, Singapore, Thailand, Viet Nam, China, Taiwan, and Java and Sulawesi in Indonesia, from the surface to a depth of 59 meters. It can reach a length of 1 meter. It is considered a vulnerable species.
The spotfin betta or Brunei beauty is a species of labyrinth fish endemic to the island of Borneo. It generally inhabits pools of very slow-moving water along rivers and streams in very shallow waters of 30 cm (12 in) or less. This species grows to a length of 6.7 cm (2.6 in) in the wild, and is occasionally found in the aquarium trade; in captivity this species regularly reaches 4 inches in length.
Trematocara macrostoma is a species of cichlid endemic to Lake Tanganyika where it is known from the southern portion of the lake. This species can reach a length of 9.5 centimetres (3.7 in) SL.
Tyrannochromis macrostoma, or big-mouth hap, is a species of cichlid endemic to Lake Malawi where it prefers rocky shallows. This species can reach a length of 30 centimetres (12 in) TL. It can also be found in the aquarium trade.
Neniatlanta pauli is a species of small, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Clausiliidae, the door snails, all of which have a clausilium, a sort of sliding door.
Muticaria is a genus of small, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Clausiliidae, the door snails, all of which have a clausilium.
Trochulus biconicus is a species of air-breathing land snail, a pulmonate gastropod mollusk in the family Hygromiidae, the hairy snails and their allies.
Valvata macrostoma is a species of minute freshwater snail with an operculum, an aquatic gastropod mollusk in the family Valvatidae, the valve snails.
Chilostoma planospira is a species of medium-sized, air-breathing, land snail, a terrestrial pulmonate gastropod mollusk in the family Helicidae, the true snails.
Oxychilus alliarius, commonly known as the garlic snail or garlic glass-snail, is a species of small, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the glass snail family, Oxychilidae.
Notoglanidium macrostoma, also called the flatnose catfish and dwarf giraffe catfish is a species of claroteid catfish found in rivers in Angola, Cameroon, the Democratic Republic of the Congo, the Republic of the Congo and Gabon. It is active during twilight and at night and its diet consists of small fishes, crustaceans and insect larvae. It grows to a length of 24.0 cm TL.
Synodontis macrostoma, known as the largemouth squeaker, is a species of upside-down catfish that is native to Namibia and Zambia where it is found in the Kafue, upper Zambezi, Okavango and Cunene Rivers. It was first described by Paul H. Skelton and Peter N. White in 1990. The original specimens were obtained in Upper Zambezi River at Katima Mulilo, Caprivi, Namibia. The species name macrostoma means "large mouth", which refers to its distinctive large mouth.
Labeo macrostoma is fish in genus Labeo from the Congo Basin.
Malacosarcus is a monotypic genus of pricklefish found in the western central Pacific Ocean and possibly the northeast Atlantic Ocean at depths of from 2,777 to 4,438 metres. It's only known species is Malacosarcus macrostoma.
Teratobaikalia macrostoma is a species of a freshwater snail with an operculum, an aquatic gastropod mollusk in the family Amnicolidae.
Pseudamnicola macrostoma is a species of very small freshwater snail with an operculum, an aquatic gastropod mollusc in the family Hydrobiidae.
Diancta is a genus of sea snails in the family Diplommatinidae.
