NOTES. 133 



be a general rule on the elevation of a variety into a species to retain 

 the varietal as the new specific name." 



The President having stated that, on the whole, he was of opinion 

 that the new specific name should be used, the meeting agreed by 

 a small majority that, w the case upon which the question was based, 

 Mr. Pilsbry was justified in giving Adams' varietal name of tessellata 

 precedence over Pfeiffer's later specific name. 



NOTES. 



Note on Damayantia Smithi, Collinge & Godwin - Austen. 

 {Read 10th June, 1904.) — There are many passages in Mr. Collinge's paper 

 in vol. vi, pp. 9-12, of this journal I should like to reply to, but it is quite 

 time this argument came to an end. I have only to refer to a point of 

 nomenclature, and I shall endeavour to be as brief as possible. Damayantia 

 Smithi was described and very clearly figured in the P.Z.S., 1895, pi. xi, 

 by Mr. Collinge and myself. In 1901 Mr. Collinge created a new genus 

 Jsselentia (allied to Damayantia), making the type plicata, Cllge., a species 

 similar in all important characters to the figures of D. Smithi in the 

 P.Z.S., pi. xi, and, I may add, all the figures, not 1-5 as quoted on p. 11, 

 vol. vi. The species we described together in 1895 I consider should 

 stand as Isselentia Smithi. It would be quite wrong to transfer the 

 specific name Smithi to another very distinct species of the genus Collingea. 

 This last species should therefore be named ; it was not figured in 1 895. 

 In this connection compare my drawings of the generative organs of 

 Damayantia Smithi, figs. 7, 7a, lb, and 7c, Land and Fresh-water Moll. 

 India, pi. Ixxiii, and Mr. Collinge's figs. 9 and 10, pi. xi, P.Z.S., all made 

 in the same year ; also look at the drawings of the jaw and radula of 

 Damayantia Smithi, figured in the P.Z.S. , Moll. Ind., and Proc. Malac. Soc, 

 vol. V, pi. xi, figs. 26, 2c, which may now be seen in the Natural History 

 Museum with the label D. Smithi, written at the time it was mounted. 

 Not a single figure on pi. xi, P.Z.S. , applies to Microparmarion or Collingea, 

 and all, except figs. 9 and 10, drawn by Mr. Collinge, were copied by 

 Mr. Smit from my drawmgs on autographic paper. 



H. H. Godwin-Austen. 



