TRANSACTIONS OF WAGNER 

 1044 



TERTIARY FAUNA OF FLORIDA 



Metis alta Conrad. 



Tellina alta Conrad, Journ. Acad. Nat. Sci. Phila., vii., p. 258, 1837 (not Tellina alta 

 Conrad, Fos. Tert. Form., i., No. 4, p. 41, Oct., 1833; Claibornian). 



Tellina alta Hanley, Thes. Conch., i., p. 332, pi. 62, fig. 200, 1847. 



Scrobicularia biangulata Carpenter, P. Z. S., 1855, P- 2 3- 



Lutricola alta Cpr., Suppl. Rep. Brit. Assoc., 1863, p. 639; Journ. de Conchyl., xii., p. 

 133, 1865; Cooper, Geogr. Cat., p. 6, 1867. 



Pleistocene of San Diego and San Pedro, California. Recent from Santa 

 Barbara south to San Diego. 



This species is close to but distinguishable from M. excavata Sowerby of 

 the Panamic fauna. Both of them are nearer the Upper Miocene M. magno- 

 liana than they are to the recent M. interstriata of the present Antillean fauna. 

 Perhaps, strictly speaking, Conrad's name should be rejected for that of Car- 

 penter, as he had already described a Tellina alta (now placed in Arcopagia) 

 from the Claibornian Eocene, but as the two were placed in separate genera 

 before attention was called to this fact, I have concluded to let the name remain. 

 This is probably the largest species of the genus, one valve from the Pleisto- 

 cene of San Diego in the National Collection measures in Ion. no, alt. 100, 

 diam. (half that of the pair?) 27 mm. 



Conrad described from the Pleistocene of Santa Barbara, California, an 

 Arcopagia undo (Pacific R. R. Rep., vii.,p. 192, pi. iv., figs. 3, 4, 1857) which 

 may be referable to this species but is practically unrecognizable. 



A Miocene species from Monterey County, California, which is probably 

 distinct from M. alta, though united with the latter by Gabb, was described 

 by Conrad (Pacific R. R. Rep., vi., pt. 2, p. 70, pi. 2, fig. 6, 1857) under the 

 name of Arcopagia (= Metis) medialis. M. Dombeyi Hanley (not Car- 

 penter) and M. excavata Sowerby are recent species from the west coast of 

 Middle America which have not yet been reported in a fossil state. 



Genus MACOMA Leach. 



Macoma Leach, App. ii., Ross's Voy., p. Ixii., 1819 (M. tencra Leach) ; Journ. de 



Physique, Ixxxviii., p. 465, 1819 (June). 

 Limicola Leach, Moll. Gt. Brit., p. 296, 1852 ; Tellina carnaria Penn. non Linne ; not 



Limicola Koch, Aves, 1816; nor Fischer, Man. Conchyl., p. 1149, 1887. 



> Macalia H. Adams, P. Z. S., 1860, p. 369; Tellina Bruguieri Hanley. 



> Tellinungula Roemer, Conchyl. Cab., ed. ii., Mon. Tellina, p. 268, 1872 ; Tellina 



Bruguieri Hanley. 



> Capsa Tryon, Cat. Tellinida, p. 99, 1869; Tellina Bruguieri Hanley. 



