92 PEOCEEDINGS OP THE MALACOLOGICAL SOCIETY. 



The title-page bears the wording : " Osservazioni Zoologiche | 

 intorno | ai Testacei | dell'Isola di Pantelleria. | Lettera | deldottor 

 Oronzio-Gabriele Costa | al chiarissimo | signor D. Giovanne 

 Gussone | Botanico de ' Giardini di Casa e Siti Reali di S.M. il 

 Re I delle Due Sicilie, ec. ec. | Naj^oli, | Dallo Tipografia della 

 Minerva | 1829. j " 



There is no suggestion as to any other publication than as a 

 separate tract. It consists of twelve pages, the first eight covering 

 the title-page and introduction, the pages 8-12 dealing with a 

 " Catalogo de' Testacei dell' I. di Pantalarea ". This Catalogue 

 contains some new species, and I have collated the following : 

 p. 8, Lucina decussata ; p. 10, Emarginula elongata, Emarginula 

 solidula, Ancylus ? gussonii ; p. 11, Littorina ccerulea = basterotii 

 Payr. = ccerulescens Lam., and Sigaretus ? vitreus ; and on p. 12 

 is a new species of Pleurotoma described, but unnamed specifically. 



The variation in the spelling of Pantelleria is remarkable, for, in 

 addition to the two quoted, two or three more variants occur. 



NOTE ON THE TROCHUS F LAV I BUS, T. PALLIDULUS, AND 

 T. FLAMMIGER OF DUNKER. 



By J. R. Le B. Tomlin, F.E.S. 



Read 9th June, 1922. 



These three species were described by Dunker in the Proceedings 

 of the Zoological Society for 1856, pp. 354-5, from unique specimens 

 in the Cuming Collection, all of unknown locality. 



All three types belong to CalUostoma and have a familiar 

 Mediterranean facies, and a careful examination leaves room for but 

 little doubt that they have been " doctored ", or, at any rate, very 

 drastically cleaned. 



Trochus flavidus, which Dunker compares with duhius, Phil., 

 is inseparable from this latter. Similarly, T. pallidulus is the same 

 as laugieri, Payr. — the species with which Dunker compares it. 

 T. flanimiger is compared with pallidulus ; it is merely another 

 unnecessary synonym of laugieri. 



