Miscellaneous. 183 



iana, a species hitherto regarded as eschisively Mediterranean. It 

 would be verj' interesting to see whether the individuals with pluri- 

 seriate suckers and simple ink-bag agree in other characters with 

 S. Oweniana, or whether they represent in the Atlantic a parallel 

 form related to S. Owcniana, as S. scandica is to S. Petersi. — Bulletin 

 Scienti/ique, 1889, pp. 171-175. 



Note on Mr. Williams's Paper on a new Species of Ampullaria. 

 Ey Edgar A. Smith. 



In the last number of these ' Annals ' Mr. J. W, Williams, in his 

 " Note on a new Species of Ampullaria from the La Plata," ob- 

 serves : — " I have, in company with Mr. Edgar Smith, examined 

 the species belonging to this genus which are in the National Col- 

 lection, and not found one to which this present shell could be 

 referred," 



This statement, although partly correct, but published without 

 my knowledge, seems to imply that I also am of opinion that tho 

 Museum does not contain tlie species in question. 



Of this I am not at all certain, for I well remember that Mr. 

 Williams's study of the Museum series was very brief — nor did he 

 examine the South-American Ampidlaricti contained in the d'Orbigny 

 collection. 



It seems to me improper to cite my name apparently in support 

 of the validity of the supposed new species without warning or per- 

 mission. A museum official in assisting a visitor or student does 

 not, without a distinct request, pledge himself that any species 

 brought for comparison is or is not contained in the Museum ! 



AcantJiodian Fishes from the Devonian of Canada. 

 By A. Smith Woodward. 



The known geographical distribution of the extinct Acanthodian 

 fishes is gradually becoming extended by their discovery both in 

 Canada and in Siberia ; but the only genus hitherto definitely deter- 

 mined outside the European area is the t-y^icsl Acanthodes. It is there- 

 fore interesting to note that fragmentary evidence of a remarkable 

 generic type, first distinguished in the Lower Old Eed Sandstone of 

 Forfarshire, has lately been described and figured* from a correspond- 

 ing horizon at Campbellton, New Brunswick ; and the circumstance 

 seems worthy of a brief special notice, since the relationships of the 

 fossils in question are misinterpreted and unrecognized by their 

 discoverer. These specimens are triangular dermal spines, more or 

 less elongated, laterally compressed, marked with longitudinal ridges 



* J. F. Whiteaves, " Illustrations of the Fossil Fishes of the Devonian 

 Rocks of Canada. — Part II.," Trans. Rov. Soc. Canada, vol. vi. sec. iv. 

 (1889), pp. 95, 96, pi. x. figs. 3, 4. 



