637 



{From the " Proceedings of the Malacological Society," Vol. IX, 

 Part VI, September, 1911.] 



DESCRIPTION OF A NEW SPECIES OF ACM^A FROM BOMBAY, 

 AND NOTES ON OTHER FORMS FROM THAT LOCALITY. 



By Edgak a. Smith, I.S.O. 



Head dth June, 1911. 



Specimens of au Acmma from Bombay have recently been presented 

 to the British Museum by Major A. J. Peile, R. A., and as the genus has 

 not been until recently^ recorded as inhabiting the shores of India, it 

 seemed desirable to give an account of the present species. Its existence 

 at Bombay, however, has been known to me since the year 1882, when 

 the late Dr. W. T. Blanford gave to the Museum a dozen examples. 

 These, however, were only about half the size of those received from 

 Major Peile. 



The shores of Bombay are not very prolific in limpet-like forms such as 

 Patella, Acmcea, etc. Messrs. Melvill & Abercrombie" enumerate the 

 following : — 



1. Fissurellct Bombayana, Sow. = lima, Sow. 

 3. Emarginula elongata, Phil. 



3. E. radiata, Gould. 



4. Scutum unguis (Linn.). 



5. Patella aster. Reeve. 



6. Clypidina notata (Linn.). 



No. :i. Emarginula elongata. Philippi never published a species under 

 this name, but he quoted^ the Mediterranean shell described by Costa 

 with that appellation. This is quite distinct from the shell figured by 

 A. Adams & Sowerby as " E. elongata, Philippi.'" 



The specimens from Bombay thus identified have kindly been sent to 

 me for examination by Mr. J. C. Melvill, who borrowed them from the 

 Manchester Museum, where they were placed by Mr. Abercrombie, by 

 whom they were collected. A careful study of them proves that they 

 are neither the elongata of Costa nor of the Thesaurus but are certainly 

 identical with E. dilecta, A. Ad., orginally said to be from King George's 

 Sound, South Australia. In the Museum there are several specimens 

 collected at Bombay by Mrs. Deakin, by whom they were presented. 



The " E. elongata, Philippi " of the Abercrombie & Melvill list must 

 therefore be regarded as a mere nomen nudum. 



No. 3. The Emarginula {Clypidind) radiata was described by Gould from 



^ Preston, Records Indian Mus., vol. vi, p. 39, Acmma Trava')icorica. 



" Mem. Proc. Manchester Lit. Phil. Soc, ser. IV, vol. vii, p. 41, l89:-i. 



=« Enum. Moll. SiciL, vol. i, p. 115, pi. vii, %. 13. 



* Thesaurus Conch., vol. iii. p. 212, pi. 24r., fi^j-. :'>:!. 



