252 BULLETIN OF THE 



of C. minima, and if they were identical vv^ould take precedence of it. Further- 

 more, from Florida I have received specimens collected by H. Hemphill at 

 Key West, which seem to be the same as the British tubercularis except that the 

 tubercles form spiral bands of pale medium and dark brown color. These 

 differ from the C. Greenii collected in the same region just as the British and 

 Mediterranean specimens do. The range of C. Greenii extends from Massa- 

 chusetts Bay to Florida, Bermuda, and Santo Domingo. Cerithium iota C. B. 

 Adams is, from typical specimens, merely a rather small variety of C. Greenii. 



The operculum of Cerithio]}sis is paucispiral, somewhat concave, with three 

 or four whorls, rather translucent and smooth outside. I have not seen any 

 figure of the dentition of G tubercularis, but gather from the statements of Gray, 

 Tryon, and Jeffreys that the central or rhachidian tooth is large and bifid, the 

 major laterals with bidentate cusps, and the other laterals elongate, simple, and 

 smooth, without denticles. 



Subgenus? EUMETA (Morch) Fischer. 



Eumeta Morcli, Faunula Moll, Islandise, Vid. Medd., p. 208, 1868; Fischer, Man., 

 p. 684, 1883; Jeffreys, P. Z. S. 1885, p. 61 {ex parte). 



The name of Morch was simply inserted without any comment. Dr. Fischer, 

 I believe, first gave it a definition, basing this on the dentition. Dr. Jeffreys 

 united Metaxia with it, and used Eumeta to designate the blunt-tipped as dis- 

 tinguished from the typical acute Cerithiopsides. 



Cerithiopsis (Eumeta ?) subulata Montagu. 



Plate XX. rig. 4. 



?? Trochus pundatus Linne', Syst. Nat., ed. xii., p. 1231, Ko. 603, 1766. Hanley, 



Test. Lin., pp. 324, 520, 1855. 

 Cerithium punctatum (L.) Philippi, Zeitschr. fiir Mai., V. p. 23, 1848; not of Brugiere, 



Enc. Meth., p. 463, 1789. 

 Murex subulatus Montagu, Test. Brit. Suppl., p. 115, pi. xxx. fig. 6, 1808. Turton, 



Conch. Diet., p. 96, 1819. Dillwyn, Cat., II. p. 759, 1817. 

 Cerithitnn sxihulatinn Jeffreys, Brit. Conch., IV. p. 264, 1867; not of Potiez and 



Michaud, Gal. Douai, 1888. 

 Cerithium melula Dan. (non Loven) in Jeffreys, Brit. Conch., IV. p. 257, 1867. 

 Cerithium Emersonii C. B. Adams, Bost. Journ. Nat. Hist., II. p. 284, pi. iv. fig. 10, 



18.38. Gould, Inv. Mass., p. 275, fig. 180, 1841. 

 Cerithium punctatum Philippi, Abbild. und Beschr., III. p. 99 {Cerithium, p. 6, pi. i.), 



pi. XX. 4, figs. 16, 18, 1849. Sowerby, Thes. Conch. Cerith., p. 880, pi. 



clxxxiv. fig. 240, 1855. 

 Cerithiopsis punctatum Tryon, Man., IX. p. 170, pi. xxxv. fig. 34, 1887. 

 Cerithium elegans Blainvillo, Faune Franj. Moll., p. 159, pi. Ixii. fig. 9, 1827 {Jide 



Tryon) ; not of Petit, 1853. 



