5 Arachn. 
Systematic — Eurypterida. 
2831 
III.— SYSTEMATIC INDEX = 2831. 
N.B. — The number in Clarendon type, 
ichen not that of a Volume, refers to 
the list of Titles. 
tTRILOBITA. 
Burling 2. — Raymond 6. 
Actinolobus americanus sp. n. 
Silurian, Wisconsin, p. 23 figs., Ray- 
mond Bull. Mus. Comp. Zool. Harvard 
60. 
Agrauloa stator p. 28, fig., Walcott 
Smithsonian Misc. Coll. 67. — A. charops 
p. 72, (?) unca p. 73, spp. n., Lower 
Cambrian, Brit. Columbia, figs., Wal- 
cott t.c. 
Albertella bosworihi p. 38, helena 
p. 39, levis sp. n. p. 39, Middle Cambrian, 
Canada figs., Walcott t.e. 
Bathyuriscus rossensis p. 46, ( Poliella ) 
chilo p. 50, spp. n. Middle Cambrian, 
Canada, figs., Walcott t.c. 
Bumastus niagarensis p. 17, dayi 
spi n., decipiens sp. n. p. 18, tenuis 
sp. n. p. 19, indeterminatus p. 22, 
Silurian, N. America, Raymond Bull. 
Mus. Comp. Zool. Harvard 60. 
Calymene breviceps p. 27, celebra 
p. ,28, spp. n., Silurian, Wisconsin, 
figs., Raymond t.c. 
Ceratocephala goniata p. 24 figs., 
Raymond t.c. 
Cheirurus niagarensis p. 30, welleri 
sp. n. p. 34, dilatatus sp. n. p. 36, 
patens sp. n. p. 37, Silurian, Wisconsin, 
< figs., Raymond t.c. 
t Crepicephalus chares sp. n. Middle 
Cambrian, Canada p. 35 figs., Walcott 
Smithsonian Misc. Coll. 67. — C. cecinna 
p. 99, celer p. 101 spp. n., Lower 
Cambrian Brit. Columbia figs., Wal- 
cott t.c. 
Encrinurus reflexus sp. n. Silurian, 
^ Wisconsin p. 25 figs., Raymond Bull. 
Mus Comp. Zool. Harvard 60. 
, JUaenidae classif. and genera p. 3, 
Raymond t.c. 
Liocalymene gen. n. ( Calymenidae 
- type clintoni Vanuxem p. 29, Ray- 
mond t.c. 
Neolenus constans sp. n. Middle 
Cambrian, Canada p. 45 figs., Walcott 
Smithsonian Misc. Coll. 67. 
Olenopsis cl. americanus p. 37 figs., 
Walcott t.c. — O. cleora p. 74, crito 
p. 75, leuka p. 77, spp. n., Lower Cam- 
brian, Brit. Columbia figs., Walcott 
t.c. 
Ptychoparia candace p. 28, (?) charaz 
p. 31, (?) cilles p. 32, pylas p. 33, spp. n., 
Middle Cambrian, N. America figs., 
Walcott t.c. — P. adina p. 78, carina 
p. 80, (?) cercops p. 81, (?) cleadas p. 83, 
cleon p. 84, clusia p. 85, cossus p. 86, 
cuneas p. 87, gogensis p. 88, lux p. 90, 
perola p. 91, pia p. 93, skapta p. 95, 
thia p. 96, spp. n., Lower Cambrian, 
Brit. Columbia figs., Walcott t.c. 
Trochurus nasutus p. 23 figs., Ray- 
mond Bull. Mus. Comp. Zool. Harvard 
60. 
Vanuxemella nortia p. 37 fig., Wal- 
cott Smithsonian Misc. Coll. 67. 
Zacanthoides charilla p. 40, cimon 
p. 41, cnopus p. 43, spp. n., Middle 
Cambrian, N. America figs., Walcott, 
t.c. 
XIPHOSURA, etc. 
Holmgren, 3. — Nukada, 4. 
| EURYPTERIDA. 
Eurypterus dumonti sp. n. Coal 
Measures, Belgium, p. 646 figs., Stainieb 
Q.. J. Geol. Soc. 71. 
Sidneyia inexpectans restoration p. 
78 fig.. Burling Ottawa Nat. 31 . 
