DIPNOI, ARTHRODIRA. 
Pisces 39 
Qlyptolepis traquairi , n. sp. (foas.), A. v. Koenen, t. c. p. 29, pi. ii, fig. 4, 
Devonian, Braunau, Germany. 
DIPNOI. 
L. Dollo, Bull. Soc. Beige Geol. ix, Mem. pp. 79-128, pis. v-x, writes on 
the phylogeny of the Dipnoi , which he considers to have evolved 
from the Crossopterygian Ganoids. 
On the visceral anatomy of Lepidosiren ; Eulers, Nachr. Ges. Gottingen, 
1895, pp. 34-50. 
On the cerebral nerves of Protopterus annectens ; F. Pjnkus, Morphol. 
Arbeit, iv, pp. 275-346, figg. 
Tylodus , n. g., for fossil teeth referred to the Dipieridw. T. delloides and 
excavatus , n. spp., Roiion, M^m. Ac. Petersb. xli, 1893, pp. 57 & 59, 
pi. i, figg. 33 & 24, Upper Silurian, Oesel. 
Chelomodus , n. g., for C. digitiferus, n. sp., id. ibid. p. GO, pi. i, fig. 34. 
Ctenodus (?) sibiricus , n. sp., id. ibid. p. 62, pi. i, fig. 35. 
ARTHRODIRA. 
Short remarks on the Great Placoderms of Ohio ; Claypole, Rep. Brit. 
Ass. 1895, p. 695. 
Coccosteus , Ag. : remarks by A. v. Koenen, Abh. Ges. Gotting. xl, No. 2, 
p. 3. C. inflatus, Koen., figured, id. ibid. pi. ii, fig. 6. 
Coccosteus (?) halmodeus , n.sp., J. M. Clarke, Rep. State geol. 1893, 
p. 161, pi. i, Livonia Salt Shaft, New York. 
Brachydirus carinatus, Koen., described and figured ; A. v. Koenen, t. c. 
p. 10, pi. i, figg. 1-3, and ii, fig. 5. 
Aspidiclitliys ingcns , Koen., described and figured by A. v. Koenen, Abh. 
Ges. Gotting. xl, No. 2, p. 13, pi. iii, figg. 1-3. 
Dinichthys eifeliensis, Kayser, described and figured by A. V. Koenen, t. c. 
p. 16, pi. v, figg. 4 & 5, and v, fig. 1. 
Anomalichthys scaber , Koen., described and figured by A. V. Koenen, 
t. c. p. 19, pi. v, fig. 2. 
Platyaspis , n. g., apparently allied to Dinichthys , Newb., for P. tenuis , 
n. sp. ; A. v. Koenen, t. c. p. 21, pi. iv, fig. 1, Devonian, Weilburg, 
Germany. 
Macropctalichthys agassizii , H. v. Mey., and prumiensis, Kayser, described 
and figured by A. v. Koenen, t. c. pp. 22 & 24, pi. iv, fig. 3, and 
pi. v, fig. 3. 
Ilolopetalichthys, n. g. ( Coccosteid .) for H. novahi , n. sp. ; A. v. Koenen, 
t. c. p. 25, pi. iv, fig. 2, Devonian, Konieprus, Bohemia. 
