Systematic A rrangement. 
XXXI 
CLASS PISCES— Contiuued. Page. 
SUBCLASS TELEOSTOMI— Continued. 
Order Isospondyli— C ontinued. 
Family Argentiuidce — Continued. 
Genus Osmerus (Artedi) Linuseus 522 
Subgenus Spirinchus, Jordan & Evermann 52S 
thaleichthys, Ayres 522 
attenuatus, Lockington 523 
Subgenus Osmerus 523 
mordax (Mitcbill) 523 
spectrum (Cope) 523 
abbotti (Cope) 524 
dentex, Steindachner 524 
albatrossis, Jordan & Gilbert 2823 
Genus Mesopus, Gill 524 
pretiosus (Girard) 525 
olid us (Pallas) 525 
Genus Argentina (Artedi) Linnaeus 525 
silus, Ascauius 526 
sialis, Gilbert 526 
striata, Goode & Bean 526 
Genus Leuroglossus, Gilbert 527 
stilbius, Gilbert 527 
Family Microstoinidce 527 
Genus Xansenia, Jordan & Evermann 528 
groenlandica (Reinhardt) 528 
Genus Bathylagus, Giintber 528 
benedicti, Goode & Bean 529 
euryops, Goode &. Bean 529 
pacificus Gilbert 530 
borealis, Gilbert 2824 
milleri, Jordan Sc Gilbert 2825 
Order Iniomi 530 
Family Synodontidce 532 
Genus Tracbinocephalus, Gill C33 
myops (Forster) 533 
Genus Synodus (Gronow) Scopoli 533; 2807 
intermedins (Agassiz) 535 
evermanni, Jordan A Bollmau 535 
poeyi, Jordan 536 
synodus (Linnaeus) 536 
lacertinus, Gilbert 536 
saurus (Linnaeus) i 537 
scituliceps, Jordan A Gilbert 537 
jenkinsi, Jordan A Bollman 537 
foetens (Linnaeus) 538 
lucioceps (Ayres) 539 
Genus Batbysaurus, Giintber 539 
^ ferox, Gunther 539 
Genus Bathylaco, Goode A Bean 540 
nigricans, Goode A Bean 540 
Family Aulopidce 541 
Genus Chlorophtbalmus, Bonaparte 541 
agassizii, Bonaparte 541 
cbalybeius (Goode) 542 
truculentus. Goode A Bean 542 
Family Benthotauridw 543 
Genus Bentliosaiirus, Goode A Bean 543 
grallator, Goode A Bean 543 
