ASTEROLEPIDJE 
225 
linear process, less than 0 001 in breadth, and about 0-004 in 
length; after which it widens, at a right angle to the longer axis 
of the body, into a small and narrowly pentangular expansion about 
0-002 broad and 0'003 in length, which reaches nearly as far as the 
inner surface of the anterior ventral plates, though these are very 
much crushed upwards/’ 
Bothriolepis ornata, Eichwald. 
1840. Bothryolepis prisca, E. Eichwald, Neues Jabrb. p. 425 (name 
only). 
1840. Bothriolepis ornatus, E. Eichwald, Bull. Sci. St.-P£tersbourg, 
toI. vii. p. 79. 
1844. Glyptosteus reticutatus, L. Agassiz, Poiss. Foss. vol. i. p. xxxiv 
(name only), in part. 
1845. Bothriolepis ornatus, L. Agassiz, Poiss. Foss. V. G. P. p. 99 (in 
part), pi. xxix. figs. 1, 2 (non figs. 3-5). 
1857. Asterolepis, C. H. Pander, Placoderm. devon. Syst. p. 44. 
1860. Bothriolepis ornata , E. von Eichwald, Leth. Rossica, vol. i. 
p. 1513, pi. lvi. fig. 3. 
1880. Bothriolepis ornata , J. Lahusen, Verhandl. russ.-kais. mineral. 
Gesell. [2] vol. xv. p. 136. 
1888. Bothriolepis ornatus , R. H. Traquair, Geol. Mag. [3] vol. v. 
p. 509. 
Type. Anterior median dorsal plate; University of St. Petersburg. 
The type species, of considerable size. Anterior median dorsal 
plate longer than broad, faintly carinated, ornamented with large 
pittings, due to the complete fusion of the tubercles ; no distinct 
stellate tubercles. 
Form, Loc. Devonian : NW. Russia. 
P. 710. Imperfect anterior median dorsal plate and other fragments ; 
Prikscha, Government of Novgorod. Egerton Coll. 
P. 4600. Imperfect proximal marginal plate of appendage; Prikscha. 
Ennislcillen Coll. 
43452 a. Fragments of plates; Prikscha. 
Presented by Kenneth Murchison, Esq., 1872. 
Bothriolepis panderi, Lahusen. 
1880. Bothriolepis panderi, J. Lahusen, Verhandl. russ.-kais. mineral. 
Gesell. [2] vol. xv. p. 125, pis. i., ii. 
1880. Bothriolepis panderi, H. Trautschold, Bull. Soc. Imp. Xat. Moscou, 
pt. ii. p. 169, pi. ii. 
PART II. 
Q 
