XL Systematic Arrangement. 
CLASS PISCES— Continued. Page. 
SUBCLASS TELEOSTOMI-Continued. 
Order Hemibranchii— C ontinued. 
Family Continued. 
Genus Gasterosteus (Artedi) LinniBus— Continued. 
■williamsoni, Girard 750 
niicrocephalus (Girard) 751 
Genus Apeltes, De Kay 752 
quadracus (Mitchill) 752 
Family Aulorhynchidee 752 
Genus Aulorhynchus, Gill 753 
tiavidus, Gill 754 
Family Aulostomidee 754 
Genus Aulostonuis, Lac6p0de 754 
luaculatus, Valenciennes 754 
cinereus, Poey 755 
Family Fistidariidce 755 
Genus Fistularia, Linnaius 756 
tabacaria, Linnaeus 757 
depressa, Gunther 757 
petimba, Lacep^de 758 
Family Macrorhamphosidee 758 
Genus Macrorbamphosus, Lac6p6de 759 
scolopax (Linnaeus) 759 
Order Lophobranchii 759 
Suborder Stngnathi 760 
Family Syngnathidee 760 
Genus Siphostoma, Rafinesque 761 
Subgenus Dermatostethus, Gill 763 
punctipinne (Gill) 763 
Subgenus Siphostoma 763 
carinatum, Gilbert 763 
califomiense (Storer) 764 
griseolineatum (Ayres) 764 
leptorhynchuni (Girard) 764 
flstulatum (Peters) 765 
Barbara?, Swain 765 
inackayi Swain &. Meek 766 
lioridiB, Jordan &. Gilbert 766 
poeyi, Jordan &. Evermann 766 
auliscus, Swain 767 
pelagicum (Osbeck) 767 
rousseau (Kaup) 767 
elucens (Poey) 768 
jonesi (Gunther) 768 
robertsi, Jordan & Rutter 2837 
sinaloa?, Jordan A Starks 2838 
brachycephalum (Poey) 769 
affine (Gunther) 769 
scovelli, Evermann A Kendall 769 
bairdianum (DumOril) 770 
louisianae (Gunther) 770 
fuscum (Storer) 770 
starksii, Jordan A Culver 771; 2838 
arctum, Jenkins A Evermann 771 
crinigerum, Bean A Dresel 771 
Genus Corythroichthys, Kaup 772; 2838 
albirostris, Heckel 772; 2838 
eayennensis (Sauvage) 772; 2838 
