252 BULLETIN OF THE 



of C. minima, and if they were identical would 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 G. Gh-eenii 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 G. Greenii. 



The operculum of Cerithiopsis is paucispiral, somewhat concave, with three 

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

 figure of the dentition of C 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 Morch, Faunula Moll. Islandia?, 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. Fig. 4. 



?? Trochus punctatus Linne, Syst. Nat., ed. xii., p. 1231, No. 603, 1766. Hanley, 



Test. Lin., pp. 324, 52D, 1855. 

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



Enc. Meth., p. 463, 1789. 

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



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

 Cerithium subulatum Jeffreys, Brit. Conch., IV. p. 264, 1867 ; not of Potiez and 



Michaud, Gal. Douai, 1838. 

 Cerithium metula Dan. (no'n Loven) in Jeffreys, Brit. Conch., IV. p. 257, 1867. 

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



1838. Gould, Inv. Mass., p. 275, fig. 180, 1841. 

 Cerithium punctatum Philippi, Abbild. und Reschr., 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 Blainville, Faune Franc^ Moll., p. 159, pi. lxii. fig. 9, 1827 (fide 



Tryon) ; not of Petit, 1853. 



