Ecsenius melarchus, known commonly as the Yellow-eyed comb-tooth or the Java combtooth-blenny in Indonesia

Indonesia

Indonesia , officially the Republic of Indonesia , is a country in Southeast Asia and Oceania. Indonesia is an archipelago comprising approximately 13,000 islands. It has 33 provinces with over 238 million people, and is the world's fourth most populous country. Indonesia is a republic, with an...

, is a species of combtooth blenny

Combtooth blenny

Combtooth blennies are blennioids; perciform marine fish of the family Blenniidae. They are the largest family of blennies, with approximately 371 species in 53 genera represented...

 in the genus Ecsenius

Ecsenius

Ecsenius is a large genus of fish in the Blenniidae family. It currently contains 53 described species.-Species:*Ecsenius aequalis, Fourline blenny*Ecsenius alleni, Allen's blenny*Ecsenius aroni, Aron's blenny...

. It is found in coral reef

Coral reef

Coral reefs are underwater structures made from calcium carbonate secreted by corals. Coral reefs are colonies of tiny living animals found in marine waters that contain few nutrients. Most coral reefs are built from stony corals, which in turn consist of polyps that cluster in groups. The polyps...

s in the western Pacific ocean. It was named by Victor Gruschka Springer and James F. McKinney in 1976, and can reach a maximum length of 5 centimetres. Blennies in this species primarily feed off of plants, including benthic algae

Algae

Algae are a large and diverse group of simple, typically autotrophic organisms, ranging from unicellular to multicellular forms, such as the giant kelps that grow to 65 meters in length. They are photosynthetic like plants, and "simple" because their tissues are not organized into the many...

 and weeds, and are commercial aquarium

Aquarium

An aquarium is a vivarium consisting of at least one transparent side in which water-dwelling plants or animals are kept. Fishkeepers use aquaria to keep fish, invertebrates, amphibians, marine mammals, turtles, and aquatic plants...

 fish. The specific name "melarchus" is Latin

Latin

Latin is an Italic language originally spoken in Latium and Ancient Rome. It, along with most European languages, is a descendant of the ancient Proto-Indo-European language. Although it is considered a dead language, a number of scholars and members of the Christian clergy speak it fluently, and...

for "black anus", and refers to the black anal marking on the blennies in this species.