HOLOPTTCHITDJE. 
339 
35995. -Tooth wanting base, and fragment; Scat Craig, near Elgin. 
Purchased, 1861. 
43454 > Six imperfect abraded teeth ; Russia. 
Presented by Kenneth Murchison, Esq., 1872. 
41092. Thirty similar specimens ; Dorpat, Livonia. 
Purchased, 1868. 
?. 4489. Eragment of Hoi opty chian mandible showing an internal 
dentary bone with parts of the bases of two teeth ; River 
bsjass, Govt, of St. Petersburg, Russia. The ornamented 
principal dentary, with a marginal series of small teeth, is 
also seen. Purchased, 1884. 
Dendrodus strigatus, Owen. 
1841. Dendrodus strigatus, R. Owen, Microscopic Journal, vol. i. p. 17, 
woodc. fig. 1. 
1841. Dendrodus sigmoideus, R. Owen, ibid. p. 17, woodc. fig. 2. 
1841. Dendrodus strigatus, R. Owen, Odontogr. p. 175. 
1844. Dendrodus strigatus, L. Agassiz, Poiss. Foss. V. G. R. pp. 61, 
80, 143, pi. C. figs. 10, 20-22, pi. xxviii. a. figs. 1, 2. 
(?)1844. Dendrodus sigmoideus, L. Agassiz, ibid. pp. 61, 82, 143, 
pi. xxviii. fig. 3, pi. xxviii. a. figs. 3-5. 
(P) 1844. Dendrodus strigatus, L. Agassiz, Poiss. Foss. vol. ii. pt. ii. 
p. 105, pi. lv. a. figs. 19, 20. 
1860. Dendrodus strigatus , C. H. Pander, Saurodipt., Dendrodont. &c. 
devon. Syst. p. 53, pi. x. figs. 15, 16. 
1860. Dendrodus sigmoides, C. H. Pander, ibid. p. 54, pi. x. fio*. 19 
(Pfig. 20). 
Type. Imperfect tooth. 
Teeth much elongated, often sigmoidally curved, round in section, 
with a pair of inconspicuous longitudinal keels in the upper 
portion. 
The Russian specimens commonly assigned to this “ species ” are 
more robust than those from the typical Scottish locality. 
Form. Log. Upper Old Red Sandstone : Scat Craig, near Elgin. 
Devonian : N.W. Russia. 
35996. Five imperfect typical teeth; Scat Craig. Purchased, 1861, 
P. 5097. Typical tooth ; Scat Craig. 
Presented by John Edward Lee, Esq., 1885. 
43454 a. Three imperfect robust teeth ; Riga. 
Presented by Kenneth Murchison, Esq., 1872. 
z 2 
