9 Arachn. 
Systematic. — Trilobita, etc. 
2831 
pagnax description, p. 242 pi. xxi 
(T. 1-4, Weller Chicago Acad. Sci. 
Bull. Nat Hist. Surv. No. 4. 
Nilceus beaumonti description and 
figures, Bezier Palaeont. Univers. ser. 2 
fasc. 3 pp. 119, ] 19a. 
Kiobe East Baltic Silurian species 
pp. 98-110, lindstromi sp. n. p. 105 
pi. ix f. 12, x IT. 1-4, 7, xii IT. 1-2, 
Schmidt St. Peterburg Mem. Ac. Sc. 
ser. 8 12. — N. vollborthi sp. n. Silurian, 
East Baltic, Schmidt op. cit. 20 No. 8 
p. 70. 
Odontopleura illinoiensis sp. n. 
Illinois, Silurian, Weller Chicago 
Acad. Sci. Bull. Nat. Hist. Surv. No. 
4 p. 253 pi. xxiii IT. 5-6. 
Palaeoblattina douvillei a fragment of 
a trilobite, Agnus Rev. sci. Bourbon 17 
pp. 85-86. 
Phcicops elliptifrons p. 1, pi. i. f. 1, 
mutica, maxima , venjukou-i p. 6 f. 2, 
figured, Schmidt St. Peterburg Mem. Ac. 
Sc. 20 pt. 8. — P. handuerki sp. n. 
Illinois, Silurian, Weller Chicago Acad. 
Sci. Bull. Nat. Hist. Surv. No. 4 p. 271 
pi. xxiv fT. 6-7. — P. logani gaspensis 
var. n. Quebec, p. 165, nylanderi sp. n. 
Maine, p. 166, Devonian, Clarke New 
York State Mus. Bull. No. 107. — P. longi- 
caudatus orientalis var. n. p. 138 
pi. viii fT. 5-11, swinhoei p. 140, 
shanensis p. 142 fT. 1-4, spp. n. 
Silurian, N. Shan. States, Reed Pal. Ind. 
2 No. 3. 
Pliomera ingsangensis sp. n. Ordo- 
vician, N. Shan States, Reed Pal. Ind. 2 
No. 3 p. 74 pi. v. fT. 19-25. 
Prionocheilus verncuili description, 
synonymy, figures, Bezier Palaeont. 
Univers. ser. 2 fasc. 3 pp. 120, 120 a. 
Proctus bohem'cus pi. ii [v] fT. 30-32, 
sub frontalis f. 33, descriptions, Gortani 
Palaeontogr. Italica 13. — P. channahonen- 
sis p. 228 pi. xx fT. 6-7, handuerki p. 229 
IT. 8-9, spp. n. Illinois, Silurian, Weller 
Chicago Acad. Sci. Bull. Nat. Hist. 
Surv. No. 4. — P. phocion figured, Gortani 
Bologna Mem. Acc. sc. Ser. 6 4 p. 171 
pi. vi f. 25. — P. icdhrmanni sp. n. 
Silurian, East Baltic. Schmidt St. Peter* 
burg Mem. Ac. Sc. 20 No. 8 p. 61 pi. i 
f. 12, pi. iii f. 10. 
Ptychopygc limbata synonymy and 
description, Schmidt St. Peterburg Mem. 
Ac. Sc. 20 No. 8 p. 80. 
Remopleuridcs sp. Ordovician, N. 
Shan States, Peed Pal. Ind. 2 Nc. 3 
p. 69 pi. iv f. 17. 
Roberjia micro phthalma from the 
Scanian Dicellograptus-slate, Moderg 
Stockholm Geol. For. Forh. 20 
pp. 83-88 with pis. 
Sphaerexochus romingcri description, 
Weller Chicago Acad. Sci. Bull. Nat. 
Hist. Surv. No. 4 p. 266 pi. xxiv fT. 16-19. 
Sphaerocoryphe sp. Ordovician, N. 
Shan States, Reed Pal. Ind. 2 No. 3 
p. 77 pi. v. f. 26. 
Staurocephalus obsoleta sp. n. Illinois, 
Silurian, Weller Chicago Acad. Sci. 
Bull. Nat. Hist. Surv. No. 4 p. 270 
pi. xxiv f. 15. 
Strenuella strenua described, Shimer 
Amer. J. Sci. 23 pp. 199-201. 
Trimeroccphalus anopthalmus p. 166 
pi. vi f. 22, pi. vii fT. 12-18, carinthiacus 
p. 167 pi. vii f. 1 1 , crypt opthalmus p. 168 
pi. vi. ff. 20-21, pi. vii fT. 20-21, acuti- 
ceps p. 171 pi. vi f. 23, pi. vii fT. 23-24, 
described, pseudogramdatus nom. n. for 
granulalus Richt. p. 170, carnicus sp. n. 
Devonian, Carnic Alp3, Gortani Bologna 
Mem. Acc. sc. Ser. 6 4. — T. cyclophthal- 
mns nom. n. fiir micromma F. A. Ilomer, 
figured, Waltiier N. Jahrb. Min. 24 
p. 303 pi. xv fT. 1-2. 
Trinuclens alfredi sp. n. Silurian, 
Bohemia, Zeiazko Prag Bull. Ac. Sci. 
Fran?. Jos. 11 p. 319 pi. i. fT. 1-6. — 
T. conccntricus var. porlloekii p. 121 
pi. viii IT. 1-2, var. elongatus p. 122 
fT. 3-4, described, arcuatus var. n. Ordo- 
vician, Tyrone, Ireland, p. 122 fT. 5-6, 
Fearnsides, Elles & Smith Proc. R. 
Irish Acad. 26 Sect. B. 
XIPHOSURA. 
’fBellinurus baldwini p. 540, longi- 
caudatus p. 541, spp. n. Coal-measures, 
Lancashire, Woodward Geol. Mag. 4. 
Euproops Meek for Prestwichia Wood- 
ward preoccupied, Cockerell Amer. 
Geol. 36 p. 330. 
