''Lophichthys boschmai'', also known as Arafura frogfish or Boschma's frogfish, is a species of
anglerfish
The anglerfish are ray-finned fish in the order Lophiiformes (). Both the order's common name, common and scientific name comes from the characteristic mode of predation, in which a modified dorsal Fish fin#Ray-fins, fin ray acts as a Aggressiv ...
es closely related to
frogfish
Frogfishes are any member of the anglerfish family Antennariidae, of the order Lophiiformes. Antennariids are known as anglerfish in Australia, where the term "frogfish" refers to members of the unrelated family Batrachoididae. Frogfishes are f ...
. ''L. boschmai'' is the only species in the Lophichthydae family. ''L. boschmai'' were first reported by Marinus Boseman in 1964 to the
Rijksmuseum van Natuurlijke Historie
The Rijksmuseum van Natuurlijke Historie (National Museum of Natural History) was a museum on the Rapenburg in Leiden, the Netherlands. It was founded in 1820 by Royal Decree from a merger of several existing collections including Temminck's own ...
, now known as National Museum of Natural History in
Leiden
Leiden ( ; ; in English language, English and Archaism, archaic Dutch language, Dutch also Leyden) is a List of cities in the Netherlands by province, city and List of municipalities of the Netherlands, municipality in the Provinces of the Nethe ...
ISSN
An International Standard Serial Number (ISSN) is an eight-digit to uniquely identify a periodical publication (periodical), such as a magazine. The ISSN is especially helpful in distinguishing between serials with the same title. ISSNs a ...
br>0024-0672 – via Naturalis.
Like the true frogfishes, it is a small fish, no more than in length, with loose skin and a lure ( esca) for attracting prey. The
pectoral fin
Fins are moving appendages protruding from the body of fish that interact with water to generate thrust and help the fish aquatic locomotion, swim. Apart from the tail or caudal fin, fish fins have no direct connection with the vertebral column ...
s are
prehensile
Prehensility is the quality of an appendage or organ that has adapted for grasping or holding. The word is derived from the Latin term ''prehendere'', meaning "to grasp". The ability to grasp is likely derived from a number of different origin ...
, helping the fish move along the sea bed. Unlike true frogfishes, however, it does not have an enlarged and globose head. It lives in shallow waters off the coast of New Guinea.
Range
''L. boschmai'' are restricted to the western central pacific and are found in the
Arafura Sea
The Arafura Sea (or Arafuru Sea) lies west of the Pacific Ocean, overlying the continental shelf between Australia and Western New Guinea (also called Papua), which is the Indonesian part of the Island of New Guinea.
Geography
The Arafura Sea is ...
near
Merauke
Merauke is a large town (''kelurahan'') and an administrative district (''distrik'') in Merauke Regency of South Papua Province, Indonesia. It is also the administrative centre of Merauke Regency, and is considered to be the easternmost city in I ...
, and
Indonesia
Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania, between the Indian Ocean, Indian and Pacific Ocean, Pacific oceans. Comprising over List of islands of Indonesia, 17,000 islands, including Sumatra, ...
. They are also found in
Western New Guinea
Western New Guinea, also known as Papua, Indonesian New Guinea, and Indonesian Papua, is the western half of the island of New Guinea, formerly Dutch and granted to Indonesia in 1962. Given the island is alternatively named Papua, the region ...
and
Papua New Guinea
Papua New Guinea, officially the Independent State of Papua New Guinea, is an island country in Oceania that comprises the eastern half of the island of New Guinea and offshore islands in Melanesia, a region of the southwestern Pacific Ocean n ...
. Similar fishes in the same area as the ''L. boschmai'' are the Lophiidae, Antennariidae,
Tetrabrachiidae
Tetrabrachiidae, or the four-armed frogfishes or doublefin frogfishes, is a small family of marine ray-finned fishes belonging to the suborder Antennarioidei in the order Lophiiformes, the anglerfishes. These fishes are found in relatively shall ...
Ogcocephalidae
Ogcocephalidae is a family of anglerfish specifically adapted for a benthic lifestyle of crawling about on the seafloor. Ogcocephalid anglerfish are sometimes referred to as batfishes,
''L. boschmai'' are bottom dwellers. They are a
benthic
The benthic zone is the ecological region at the lowest level of a body of water such as an ocean, lake, or stream, including the sediment surface and some sub-surface layers. The name comes from the Ancient Greek word (), meaning "the depths". ...
species found on the
continental shelf
A continental shelf is a portion of a continent that is submerged under an area of relatively shallow water, known as a shelf sea. Much of these shelves were exposed by drops in sea level during glacial periods. The shelf surrounding an islan ...
. They live in soft bottom habitats. Not a lot is known about ''L. boschmai'', but like other benthic anglerfish, there are presumed to be
carnivorous
A carnivore , or meat-eater (Latin, ''caro'', genitive ''carnis'', meaning meat or "flesh" and ''vorare'' meaning "to devour"), is an animal or plant whose nutrition and energy requirements are met by consumption of animal tissues (mainly mu ...
, waiting quietly for smaller fish to pass by so that they can bait them into their mouths.
Features
''L. boschmai'' have a maximum size of . Their body and head is covered with small spines and skinny flaps. The body is elongated and the head is slightly depressed, without a median groove. The mouth is large, with 1 or 2 rows of small, recurved teeth. The eyes are small and positioned
dorsolateral
Standard anatomical terms of location are used to describe unambiguously the anatomy of humans and other animals. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position. This position provi ...
. The ''Lophinchythys'' gills are restricted to a small pore located at the end of a short tube, above the
pectoral fin
Fins are moving appendages protruding from the body of fish that interact with water to generate thrust and help the fish aquatic locomotion, swim. Apart from the tail or caudal fin, fish fins have no direct connection with the vertebral column ...
base. The pectoral fin itself is a single elongated and leg like fin. The spinous dorsal has three separate spines widely separated from each other and the soft part of the
dorsal fin
A dorsal fin is a fin on the back of most marine and freshwater vertebrates. Dorsal fins have evolved independently several times through convergent evolution adapting to marine environments, so the fins are not all homologous. They are found ...
. The skin is white on the belly and light pink on the lateral and dorsal surfaces of head and body. The skin is slightly darker brown on the upper part of the body. The fins are dark brown with white spots. The
oral cavity
A mouth also referred to as the oral is the body orifice through which many animals ingest food and vocalize. The body cavity immediately behind the mouth opening, known as the oral cavity (or in Latin), is also the first part of the alime ...
and
viscera
In a multicellular organism, an organ is a collection of tissues joined in a structural unit to serve a common function. In the hierarchy of life, an organ lies between tissue and an organ system. Tissues are formed from same type cells to a ...
are unpigmented. Like
Frogfish
Frogfishes are any member of the anglerfish family Antennariidae, of the order Lophiiformes. Antennariids are known as anglerfish in Australia, where the term "frogfish" refers to members of the unrelated family Batrachoididae. Frogfishes are f ...
, ''L. boschmai'' might use their coloring as camouflage to hide from predators and prey. Also like frogfish, who use a
gas bladder
The swim bladder, gas bladder, fish maw, or air bladder is an internal gas-filled organ in bony fish that functions to modulate buoyancy, and thus allowing the fish to stay at desired water depth without having to maintain lift via swimming, ...
to control their
buoyancy
Buoyancy (), or upthrust, is the force exerted by a fluid opposing the weight of a partially or fully immersed object (which may be also be a parcel of fluid). In a column of fluid, pressure increases with depth as a result of the weight of t ...