Animalia > Chordata > Actinopterygii > Scorpaeniformes > Agonidae > Aspidophoroides > Aspidophoroides monopterygius

Aspidophoroides monopterygius (Atlantic alligatorfish; Alligatorfish)

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Wikipedia Abstract

The Alligatorfish (Aspidophoroides monopterygius, also known commonly as the Aleutian alligatorfish and the Atlantic alligatorfish) is a fish in the family Agonidae (poachers). It was described by Marcus Elieser Bloch in 1786. It is a marine, temperate water-dwelling fish which is known from the northwestern Atlantic Ocean, including western Greenland; Labrador, Canada; and Cape Cod, Massachusetts, USA. It dwells at a depth range of 0-695 metres, most often around 60-150 m, and inhabits sand and mud bottoms mostly on the lower continental shelf all year. It prefers a temperature range of -1.07 to 2.52°C. Males can reach a maximum total length of 22 centimetres, but more commonly reach a TL of 14.2 cm.
View Wikipedia Record: Aspidophoroides monopterygius

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Aleutian Islands Biosphere Reserve 2720489 Alaska, United States    
Saguenay - St. Lawrence Marine Park National Marine Conservation Area II 310822 Canada

Prey / Diet

Dyopedos porrectus[1]
Stenopleustes gracilis[1]


Anoplopoma fimbria (Skil)[2]
Atheresthes stomias (Turbot)[2]
Gadus macrocephalus (Pacific cod)[2]
Hippoglossoides elassodon (Paper sole)[2]
Hippoglossus stenolepis (Pacific halibut)[2]


Parasitized by 
Pseudoterranova decipiens[3]


Alaska (USA); Arctic Ocean; Atlantic Ocean; Atlantic, Northwest; Atlantic, Western Central; Beaufort Sea; Canada; Chukchi Sea; East Bering Sea; Greenland; Gulf of Alaska; Japan; Kuroshio Current; Newfoundland-Labrador Shelf; North Pacific: Arctic to the Sea of Okhotsk and northern Sea of Japan and to Amchitka Island in the Aleutian chain and North Albatross Bank, Kodiak Island, Alaska.; Northeast U.S. Continental Shelf; Northwest Atlantic: western Greenland and Labrador in Canada to Cape Cod in Massachusetts, USA.; Pacific Ocean; Pacific, Northeast; Pacific, Northwest; Penobscot Bay; Russian Federation; Scotian Shelf; Sea of Japan; Sea of Okhotsk; USA (contiguous states); West Bering Sea; West Greenland Shelf;

External References



Attributes / relations provided by
1Food of Northwest Atlantic Fishes and Two Common Species of Squid, Ray E. Bowman, Charles E. Stillwell, William L. Michaels, and Marvin D. Grosslein, NOAA Technical Memorandum NMFS-NE-155 (2000)
2Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
3Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
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