64 THE LYME LIAS FISHES. 



OsTEORACHis, Bgertou. 



— raacrocephalus, Ecj. Mem. Geol. Surv., dec. 13, pi. v. 

 OxYGNATHUS, Egerton. 



— ornatus, Eg. Id., dec. 8, pi. ix. 

 Pachycormus, Agassiz. 



— branchialis, Ag. MS. 



— heterurus, Ag. Poissons Fossiles, vol. ii, part 2, p. 113. 



— latipennis, Ag. Mem. Geol. Surv., dec. 9, pi. iii. 



— macrurus, Ag. Poissons Eossiles, vol. ii, part 2, p. 113. 

 Pal^ospinax, Egerton (Thyellina, Agassiz.) 



— priscus, Ag. Mem. Geol. Surv., dec. 13, pi. vii. 

 Pholidophorus, Agassiz. 



— Bechei, Ag. Poissons Possiles, vol. ii, p. 272. 



— crenulatus. Eg. Mem. Geol. Surv., dec. 6, pi. v. 



— latiusculus, Ag. Poissons Fossiles, vol. ii, p. 287. 



— limbatus, Ag. Id., vol. ii, p. 282. 



— onychius, Ag. Id., vol. ii, p. 274. 



— pachysomus, Eg. Mem. Geol. Sm'v., dec. G, pi. iv. 

 Platysiagum, Egerton. 



— sclerocephalura, Eg. Id., dec. 13, pi. vi. 

 Prognathodus, Egerton. 



— Giintheri, Eg. Journ. Geol. Soc, 1872, p. 233. 

 Ptycholepis, Agassiz. 



— Bollensis, Ag. Poissons Fossiles, vol. ii, pt. 2, p. 108. 



— curtus, Eg. Mem. Geol. Surv., dec. 8, pi. viii. 

 Semionotus, Agassiz. 



— rhombifer, 4^. (Heterolepidotus ? Eg.). Poissons Fossiles, vol. 



ii, p. 228. 

 Squaloraia, Bileg (Spinacorhinus, Agassiz). 



— polyspondyla, Bileg. Poissons Fossiles, vol. iii, p. 379. 

 Thrissonotus, Agassiz. 



— Colei, Ag. Id., vol. ii, part 2, p. 128 ; Mem. Geol. 



Surv., dec. 2, pi. ii. 



After a comparison of my original notes on the Lyme sections with a stratigraphical 

 table in manuscript of the same beds, made by my friend Mr. Etheridge, F.R.S., 

 which he has kindly allowed me to examine, I find we are in perfect accordance on the 

 position of the Ichthyolites. Few remains of this class are found in the Angulatum- 

 zone. The dark marls of the Bucklandi- and Tiirneri-hediS appear to be the chief 

 repositories of the Lyme Lias Fishes, as already indicated in my sections at pp. 38, 48, 



