Family HAUSTORHDAE 

 Subfamily PONTOPOREHNAE 

 Amphiporeia gigantea Bousfield 1973 

 Bathyporeia parkeri Bousfield 1973 

 Bathyporeia quoddyensis Shoemaker 1949 

 Subfamily HAUSTORUNAE 

 Acanthohaustorius intermedius Bousfield 1965 

 Acanthohaustorius spinosus Bousfield 1962 

 Acanthohaustorius sp. A 

 Acanthohaustorius sp. B 

 Acanthohaustorius sp. C 

 Parahaustorius attenautus Bousfield 1965 

 Parahaustorius holmesi Bousfield 1965 

 Protohaustorius deichmannae Bousfield 1965 

 Protohaustorius wigleyi Bousfield 1965 

 Pseudohaustorius borealis Bousfield 1965 



Family ISCHYROCERIDAE 

 Cerapus tubularis Say 1818 

 Ericthonius brasiliensis (Dana) 1853 

 Ericthonius rubricomis Smith 1873 

 Ischyrocerus anguipes Kr^yer 1838 

 Jassa falcata (Montagu) 1818 



Family LILJEBORGIIDAE 

 Idunella sp. A 

 Liljeborgia sp. A 

 Listriella barnardi Wigley 1966 



Family LYSIANASSIDAE 



Anonyx liljeborgi Boeck 1871 

 Anonyx sarsi Steele and Brunei 1968 

 Cheirimedon sp. A 



Hippomedon propinquus G. 0. Sars 1895 

 Hippomedon serratus Holmes 1905 

 Hippomedon sp. A 

 Hippomedon sp. B 

 Hippomedon sp. C 

 Lysianopsis alba Holmes 1905 

 Orchomene minuta (Kn^yer) 1846 

 Orchomene pectinata G. 0. Sare 1895 

 Psammonyx nobilis (Stimpson) 1853 

 Tmetonyx cicada (0. Fabricius) 1780 



Family OEDICEROTIDAE 



Monoculodes edwardsi Holmes 1905 

 Synchelidium americanum Bousfield 1973 



Family PHOXOCEPHALIDAE 

 Harpinia abyssi G. 0. Sare 1885 

 Harpinia antennaria Meinert 1893 

 Harpinia propinqua G. 0. Sare 1895 

 Harpinia trurvcata G. 0. Sare 1895 

 Harpinia sp. A 

 Harpiniopsis sp. A 



Paraphoxus epistomus (Shoemaker) 1938 

 Phoxocephalus holboUi (Kn^yer) 1842 



Family PLEUSTIDAE 



Stenopleustes gracilis (Holmes) 1905 

 Stenopleustes inermis Shoemaker 1949 



Family PODOCERIDAE 



Dyopedos monacantha (Metzger) 1875 



Family STENOTHOIDAE 



Metopella angusta Shoemaker 1949 



Family SYNOPIIDAE 



Syrrhoe crenulata Cjoes 1866 

 Tiron tropakis J. L. Barnard 1972 



SPECIES ACCOUNTS 



Family AMPELISCIDAE 



Ampelisca abdita Mills 1%4 



Geographic Distribution. This species has been 

 reported from shallow protected watere along the coast 

 of eastern North America from the Bay of Fundy to 

 Florida and in the eastern Gulf of Mexico (Mills 1964; 

 Bousfield 1973; Wildish and Wilson 1976^). We collected 

 A. abdita at 27 stations in protected waters between 

 Massachusetts and Virginia (Fig. 4). This abundant es- 

 tuarine species had a mean density of 420/m^, ranging 

 between 7/m'' and 3,8(X)/m^. The density of A. abdita 

 showed no evidence of changing along the latitudinal 

 gradient within our study area. 



Bathymetric Distribution. Ampelisca abdita has been 

 collected between and 60 m (Bousfield 1973). In our 

 collections from the Middle Atlantic Bight region, it oc- 

 curred between 4 and 30 m with the highest mean den- 

 sity (630/m2), occurring between 10 and 19 m (Table 1). 

 There was no change in the bathymetric distribution 

 of this species with latitude. 



Table 1.— Bathymetric di§tribution of Ampelisca ab- 

 idita in samples from the Middle Atlantic Bight. 



Sediment Relationship. According to Mills (1964, 

 1967a), A. abdita occure most frequently on silty sand 

 bottoms. We collected this species on sediments ranging 

 from shell to silt-clay, but the highest mean densities 

 (540/m2) and largest numbere of samples occurred on 

 sand (6/27) and sand-silt (14/27) bottoms (Table 2). 



•Wildfish, D. J., and A. C. Wilson. 1976. Check list for subUttoral 

 macro-infauna sampled between 1970 and 1975 in four Bay of Fundy es- 

 tuaries. Fish. Res. Board Can. MS Rep. (Biol.), 1398, 12 p. 



Table 2.— Sediment associations of Ampelisca abdita 

 in samples fk'om Middle Atlantic Bight. 



