Superfamily Stegocephaloidea 

 Family Stegocephalidae 

 Andaniopsis nordlandica (Boeck, 1871). Boreal regions of 

 North Atlantic; not previously reported in western Atlan- 

 tic; 40-600 m, epibenthic (Sars 1895; Stephensen 1935). 

 Southern Georges Bank, 84 m, gravel bottom, 10.5 °C. 

 Stegocephalus inflatus Krciyer, 1842. Circumpolar Arctic; 

 in western Atlantic: Arctic south to Rhode Island; 30-600 

 m, gravel to clay bottoms, epibenthic, predator? (Sars 

 1895; Stephensen 1935; Bousfield 1973). 



Perimeter of Georges Bank, 121-196 m, sand and silt- 

 clay bottoms, 6.6°-7.6°C. 



Family Acanthonotozomatidae 

 AcanthonotozotJia serralum (Vabnc'ms, 1780). Circumpolar 

 Arctic; in western Atlantic: Arctic south to Bay of Fundy; 

 10-300 m, gravel to silt-clay bottoms, epibenthic (Sars 

 1895; Stephensen 1938; Gurjanova 1951). 



Northeast Peak of Georges Bank (southern range exten- 

 sion in western Atlantic); 79-198 m, sand and gravel bot- 

 toms, 7.8°-8.2°C. 



Superfamily Synopioidea 

 Family Synopiidae 

 Syrrhoe crenulala Goes, 1866. Boreal regions of North At 

 lantic and North Pacific Oceans; in western Atlantic: Arc- 

 tic south to Cape Cod; 40-200 m, epibenthic detritivore 

 (Sars 1895; Barnard 1972). 



Northeast Peak of Georges Bank, 77-101 m, sand bot- 

 tom, 8.4 °C. 

 Tiron spiniferum (Stimpson, 1853). Circumboreal; in west- 

 ern Atlantic: Arctic south to New England coast; 30-200 

 m, epibenthic (Sars 1895; Barnard 1972). 



Northeast Peak of Georges Bank, 93-198 m, gravel and 

 gravelly sand, 7.7°-8.4°C. 



Family Argissidae 

 Argissa hamatipes {^^oxm&n, 1869). Northern Hemisphere, 

 subarctic to warm temperate; in western Atlantic: Labra- 

 dor south to North Carolina, 4-1,720 m, gravel to silt-clay 

 bottoms (Barnard 1971; Bousfield 1973). 



Southeast Part of Georges Bank, 60-82 m, sand bottom. 



Superfamily Pardaliscoidea 

 Family Pardaliscidae 



Halice abyssi Boeck, 1871. Arctic-Boreal regions of North 

 Atlantic; not previously recorded in western Atlantic; 

 200-800 m, mud bottoms (Sars 1895; Stephensen 1938). 



Western Basin of Georges Bank, 168-183 m, silt-clay 

 bottom, 6.6°-7.2°C. 

 Pardalisca cuspidata Krbyer, 1842. Arctic-Boreal regions of 

 North Atlantic; in western Atlantic: Arctic south to New 

 England; 10-750 m, sand to silt-clay bottoms (Sars 1895; 

 Gurjanova 1951; Bousfield 1973). 



Northeast Peak of Georges Bank, 132 m. 



Superfamily Ampeliscoidea 



Family AmpeHscidae 



Arnpelisca agassizi (Judd, 1896). Atlantic and Pacific coasts 

 of North America; in western Atlantic; Nova Scotia south 

 to Caribbean; 5-450 m, coarse sand to silt-clay bottoms, 

 detritivore, tubedweller (Mills 1971; Dickinson et al. 1980). 



Southern Georges Bank, 60-170 m, sand bottoms, 6.6°- 

 12.6°C, often occurs in high densities (100-10,000/m-). 

 Arnpelisca declivitatis Mills, 1967. Northwestern Atlantic: 

 western Greenland south to North Carolina; 100-1,000 m, 

 sand to silt-clay bottoms, probably a tube-dwelling detriti- 

 vore (Mills 1971; Dickinson et al. 1980). 



Western Basin of Georges Bank, 150-170 m, sand and 

 silty-sand bottoms. 

 Arnpelisca macrocephala Liljeborg, 1852. Arctic-Boreal in 

 North Atlantic, North Pacific, and Arctic Oceans; in 

 western Atlantic: Greenland south to New Jersey; 5-1,700 

 m, stable sand bottoms, detritus feeding tubedweller (Bar- 

 nard 1971; Mills 1971; Bousfield 1973). 



Perimeter of Georges Bank, 66-168 m, sand bottoms, 

 7.3°-12.2°C. 

 Arnpelisca vadonim Mills, 1963. Western Atlantic: Gulf of 

 St. Lawrence to Gulf of Mexico; 0-l(X) m, medium to 

 coarse sand, detritus feeding tubedweller (Mills 1967; 

 Bousfield 1973; Dickinson et al. 1980). 



North and central Georges Bank, 20-80 m, coarse and 

 medium sand, 7.6°-8.4°C. 

 Byblis gaimardi (Kreiyer, 1846). North Atlantic and Arctic 

 Oceans; in western Atlantic: Greenland south to Cape Cod; 

 5-575 m, sand bottoms, detritus feeding tubedweller (Mills 

 1971). 



Western Basin of Georges Bank, 154 m, sand bottom. 

 Byblis serrata (Smith, 1 873). Western Atlantic: Cape Cod to 

 Cape Hatteras; 0-200 m, medium to coarse sand, detritus 

 feeding tubedweller (Mills 1971; Dickinson et al. 1980). 



Southern Georges Bank, 44-123 m, sand bottom, 7.3°- 

 11.6°C, moderately abundant (10-500/m'). 

 Haploops tubicola Liljeborg, 1856. Circumpolar Boreo- 

 Arctic species; in western Atlantic: Arctic south to Gulf of 

 Maine; 10-400 m, sand to silt-clay bottoms, detritus feed- 

 ing tubedweller (Sars 1895; Stephensen 1935; Mills 1971). 



Western Basin and perimeter of Georges Bank, 79-179 

 m, sand to silt-clay bottoms, 6.3°-7.4°C. 



Superfamily Melphidippoidea 

 Family Melphidippidae 



Melphidippa goesi Stebbing, 1899. Boreal regions of North 

 Atlantic; in western Atlantic: Labrador south to Gulf of 

 Maine; 30-300 m, fUter feeder (Sars 1895; Stephensen 1938; 

 Enequist 1949). 



Western Basin and Northern Edge of Georges Bank, 

 157-183 m, sand and silt-clay bottoms, 6.6°-7.6°C. 



Family Hornelia — Cheirocratus group 



Casco bigelowi (Blake, 1929). Western Atlantic: Gulf of St. 

 Lawrence south to Maryland; 0-400 m, sand to silt-clay 

 bottoms, epibenthic, omnivore (Bousfield 1973; Dickinson 

 et al. 1980). 



Perimeter of Georges Bank, 68-179 m, sand and silt-clay 

 bottoms, 5.3°-12.8°C. 



Superfamily Melitoidea 

 Family Melitidae 



Eriopisa elongata (Bruzelius, 1859). Arctic-Boreal regions 

 of North Atlantic and North Pacific; in western Atlantic: 

 Cape Cod south to New Jersey; 60-1,200 m, sand to silt- 

 clay bottoms, burrowing deposit feeder (Sars 1895; Ene- 

 quist 1949; Barnard 1971; Dickinson et al. 1980). 

 Southwest Georges Bank, 92 m, sand bottom. 



