﻿ADDENDA ET CORRIGENDA. 561 



fakt. pt. v. (1842), p. 35, pi. xiv. fig. 4 j Hancock & Howse, Quart. 

 Journ. Geol. Soc. vol. xxvi. (1870), p. 623, pis. xlii., xliii., and Nat. 

 Hist. Trans. Northumb. & Durham, vol. iv. (1872), p. 243, pis. ix., x. ; 

 K. A. von Zittel, Handb. Paheont. vol. iii. (1887), p. 252, woodc. 

 fig. 265 : (?) Platysomus althausii, G. von Minister, Beitr. Petre- 

 fakt. pt. v. (1842), p. 44, pi. v. fig. 2 : (?) Dorypterus althausi, K. A. 

 von Zittel, torn. cit. p. 251, woodc. fig. 264. [Palaeontological 

 Museum, Munich.] — Upper Permian (Kupferschiefer) ; Province of 

 Saxony and Hesse. Upper Permian (Marl Slate) ; Durham. [Type 

 specimen in University Museum, Halle ; English specimens in 

 Museum of Newcastle-upon-Tyne.] 



ADDENDA ET CORRIGENDA. 



P. 5. An undescribed variety of Acanihodes bronni, from the Lower 

 Permian of Moravia, is recorded as Acanthoses gracilis, 

 var. micr acanthus, A. Rzehak, Yerhandl. k.-k. Geol. 

 Reichsanst. 1881, p. 79. 



Pp. 9, 10, 11, 13. Since the earlier sheets were printed, Dr. R. H. 

 Traquair has published (Ann. Mag. Nat. Hist. [6] vol. vi. 

 1890, p. 481) an outline-figure of Acanihodes sulcatus and 

 another of Acanihodes mitchelli (this under the generic 

 name of Mesacanthus). He also admits {ibid. p. 491) the 

 definition of Acanihodes nitidus as formulated on p. 9 of 

 the present Catalogue. 



P. 26. Diplacanthxts striatus and D. longispinus are also recorded 

 by Traquair (loc. cit. p. 482) from Achanarras, Caithness, 

 the second under the name of Mhadinacanthus longi- 

 spinus. 



P. 63. In the absence of any information as to the change of form 

 exhibited by Chimeeroid teeth during growth, the follow- 

 ing specimens may be regarded as not improbably the 

 mandibular teeth of very young individuals of Ischyodus 

 beaumonti. At present, however, the determination is 

 doubtful. 



