﻿ASTEROLEPID^. 205 



410901). Two examples of postmedian. 



41090 c. Two imperfect large and one small example of median 

 occipital. 



41090 d. One left and two right lateral occipitals. 



41090 e. Portion of right anterior ventro-lateral. 



P. 1 a. Portion of left anterior ventro-lateral. Purchased, 1879. 



41091 a. Two examples of articular. 



P. 1 b, C. Large and small similar plates. Purchased, 1879. 



41091 b. Inner second marginal. 



41091 C. Inner proximal marginal. 



41091 d. Outer proximal marginal. 



41091 e. Distal half of anconeal. 



41091 f, g. Two doubtful plates, perhaps distal centrals, 



41091 h. Proximal inner marginal of distal segment. 



41091 i. Two outer distal marginals. 



41091 j. Terminal plate of limb. 



Asterolepis concatenata, Eichwald. 



1844. Pterichthys concatenatus, E. von Eichwald, Bull. Soc. Imp. Nat. 

 Moscou, vol. xvii. p. 829. 



1845. Asterolepis concatenata, E. von Eichwald, Archiv f. Mineral., 

 Geogn., etc., vol. xix. p. 674. 



(?) 1845. Actinolepis tuberculatus, L. Agassiz, Poiss. Foss. V. G. R. 



p. 141, pi. xxxi. figs. 15-18. 

 1845. Chelyophorus pustulatus, L. Agassiz, ibid. p. 136, pi. xxxi. a. 



figs. 20, 21. 

 1857. Asterolepis concatenatus, O. H. Pander, Placoderm. devon. Syst. 



p. 102, pi. vii. fig. 7 [? also fragment without name, ibid. pi. vii. 



fig. 25.] 

 1860. Asterolepis concatenata, E. von Eichwald, Leth. Rossica, vol. i. 



p. 1509. 



Type. Median occipital plate ; University of St. Petersburg. 



An imperfectly determined species, somewhat smaller than A. 

 ornatus, and described as differing in the frequent arrangement of 

 the superficial tuberculations in distinct regular series. 



Form. Sf Loc. Devonian : Marjina, near Pawlowsk, Govt, of St. 

 Petersburg, Russia. 



Not represented in the Collection. 



