The Invertebrate Fauna of the Uitenhage Series. 131 



that so long as it cannot be shown that Eripliyla Stoliczka differs in 

 essentials from Eripliyla Gabb, this name must be retained for shells 

 having the characters set forth by Stoliczka. Previously, however, 

 J. Bohrn : ' : had remarked upon the unsatisfactory nature of Stoliczka's 

 use of Gabb's name, in view of the great uncertainty respecting the 

 characters of the Californian shell, and he employs the name Dozyia 

 for Lucina lenticularis Goldf., a name applied by Bosquet in 1868 to 

 the same form. Meek t also doubted the correctness of Stoliczka's 

 view in identifying the European and Indian shell with Gabb's 

 genus, but his remarks on the subject only add further confusion and 

 help to show the futility of attempts to utilise Gabb's imperfect 

 description and figure in a generic characterisation. 



From the foregoing it appears clear to me that in the absence of 

 further information regarding the Californian type, the published 

 account of Gabb's genus is totally insufficient to support the validity 

 of the name proposed by him ; the repeated attempts to utilise 

 Gabb's description and figure have proved so unavailing that the 

 name as based upon Californian material may be reasonably ignored. 

 In further support of this contention it is only necessary to mention 

 that Whitfield} has so conceived the meaning of Gabb's description 

 as to apply the name Eripliyla to a Cretaceous shell from Syria 

 which is characterised by triangularly elliptical outline, strongly 

 prominent umbonal region, a short internal ligament, and surface 

 sculpture resembling that of Cliione. 



The question then arises, whether the name Eripliyla as defined 

 by Stolic/ka may be applied to E. lenticularis, in view of the fact 

 that Bosquet had previously proposed to call this Dozyia lenticularis. 

 It is true that this generic name was only published in a tabular 

 list, without description or discussion, but it was accompanied by a 

 reference to Goldf uss's type. I should have no hesitation in 

 following Dr. J. Bohrn and employing Bosquet's name on the 

 strength of the definite reference to Goldfuss, but unfortunately the 

 description and figure given in the " Petrefacta Germanise " deals 

 only with external characters, and no mention was made of those 

 features which are of generic or sub-generic value. These were first 

 elucidated by Stoliczka, and herein lies the justification for following 

 Prof. Holzapfel in accepting the name Eripliyla, as defined by 

 Stoliczka. 



Eripliyla lenticularis has a shallow pallial sinus and its valve- 

 margins are not crenulated. It might therefore appear that, on the 



* J. Bohm (1), p. 125. t Meek (2), p. 123. 



\ Whitfield (1), p. 403, pi. vi., figs. 2-5. Dewalque (1), p. 368. 



