0* 
{y** 
r cJP 
- s 
. S ro^k^^f s .£ * 
3 (b^foS*T»J>0$l <?(D 
P ^ 6 f$s. 
i&i 
_____ _/ l m 
/#. <- JLJ^LU^— -* ' r f o *'"^5^0 <d ^ '* ** 7 (° ,#e ^^v£^ , *» 
<? - ffi^**^jPhl ebolepis eleaans, Pander, ffricL p. 60, pi. v. fig. |^ c ^f j l<4 * (fo, 
^J?"q (21% iwS.iPrionocanthus dubia, Pander, i&frZ. p. 70, pi. xxi. fig. 21. j fTVdT’Py^f <A>Jtf ffP 
^■' u * * Rytidolepis quenstedti , Pander, ife?VZ. p. 48, pi. v. fig. 2. 
yv-rt /fJ J JSchidiosteus mustelensis , Pander, i&icZ. p. 49, pi. y. fig. 13 
Stigmolepis oweni , Pander, i&icZ. p. 53, pi. v. fig. 
_____ 
Ux£ai 
V 
%<* 
"<? i" 5 ” 7 1 ' 1 u if ■ /rj -~rs/-\ r> r ^ /7<sm/7. 
Trachylepis formosa. Pander, «6icZ. p. 52, pi. vi. fig. 22 
The specimens described as Coccopeltus,Cyphomalepis , Trachylepis 
and Phlebolepis are regarded as probably referable to Eurypterids 
by E. von Eichwald, Leth. Rossica, yoI. i. (1860), p. 1502. 
7*3 
Here may also be placed the indeterminable fragments of dermal 
armour described under the following; names :— 
Chiastolepis clathrata , E. you Eichwald, Bull. Soc. Imp. Xat. 
Moscou, yoI. xvii. (1844), p. 831, and f&icZ. yoI. xix. 
(1846), pt. ii. p. 301, pi. x. figs. 18,19, and Leth. Rossica, 
yoI. i. (1860), p. 1565, pi. Ivii. fig. 11.—DeYonian; 
Pawlowsk, St. Petersburg. [University of St. Peters¬ 
burg.] 
Spirodus regularis, G. Kade, Programmk. Realschule zu Meseritz, 
1858, p. 20, fig. 13.—Lower Palaeozoic Boulder ; Silesia. 
Osteoplax erosa, F. M‘Coy, Ann. Hag. Xat. Hist. [2] yoI. ii. 
(1848), p. 6, and Brit. Palseoz. Eoss. (1855), p. 613, 
pi. iii. k. fig. 12.—Carboniferous; Cultra, Co. Down, Ireland. 
[Wood wardian Museum, Cambridge.] 
Sphenophorus lilleyi , J. S. Xewberry, Palaeoz. Fishes X. America 
(Mon. TJ.S. Geol. Surv. no. xvi. 1889), p. 92, pi. xx. 
fig. 15.—Chemung Group; Bradford Co., Pennsylvania. 
[Columbia College, Xew York.] 
lallognaihus regularise J. S. Xewberry, ibid. p. 70, pi. xxvii. 
Delaware, Ohio. [Columbia 
/py 
y-i 
fig. 18.—Huron Shale 
CoRege, Xew York.] 
Callognathus serratus , J. S. Xewberry, ibid. p. 70, pi. xxvii, 
figs. 16, 17.—Cleveland Shale ; Lorain Co., Ohio. [Co¬ 
lumbia College, Xew York.] „ /wav 
/<f /g & 3 '' 
. */>- 
Family CCELOLEPID^E 
'***&*]&. 
s' 
Fnder the group of ‘ Coelolepiden ’ Pander arranges a number of £ p, ; ”] 
£> 
1*9 
minute dermal tubercles, coated with ganoine, usually hollow within, ? 
A- 
4 t 
and having the external layer separated by a constriction from the/’ % ~ 
base. These tubercles consist of cosmine, and the relative size of 
the internal cavity varies considerably, sometimes indeed appearing 
to be absent, 
/I L . 0 ^ '/ /3+irffl*- /Jji 
/7. 
CL. * 
& 
/L 
