TRANSACTIONS OF WAGNER 



608 



TERTIARY FAUNA OF FLORIDA 



The small Vicksburgian G. niississippicnsis Conr. recalls the rounded form of 

 the Eocene G. trigonclla, 



In the Upper Oligocene of Bowden, Jamaica, is found the well marked 

 G. acitlicostata Sby., described from St. Domingo, and G. jamaicensis Dall. 

 From the same horizon in St. Domingo Gabb has described G. approximate. 



The Eocene Pectiincithts circitlus Conr. (Mort. App., p. 7) has never been 

 described or figured. An anonymous species from the Midway formation is 

 mentioned by Harris in his monograph of that horizon. 



In the Upper Tertiaries of the Pacific coast are a number of ill-defined 

 species. Pcctiuiciifns patnlns Conr. was described (1849, Geol. Wilkes Expl. 

 Exp.) from an internal cast; P. nitcits Conrad, which follows it, is equally 

 unrecognizable; G. KasJicvarovi Grewingk (Beitr., p. 352, 1850) is a well 

 marked, strongly ribbed, probably Miocene species from Alaska; P. barbarcnsis 

 Conr. (P. R. R. Rep., vi.,p. 314, 1856) is hardly recognizable, and is referred to 

 P. patuhts by Gabb. There are several Chico-Tejon species. The recent Axiiuca 

 intermedia of Carpenter has been reported from the Californian Pliocene. 



Glycyxneris jamaicensis n. s. 



Oligocene of the Bowden marl, Jamaica. This species has been referred 

 to G. pcnnacca Lam. by Guppy and Gabb, but appears to be distinct. The 

 specimens I have examined are all of moderate size, nearly circular, quite 

 convex, externally sculptured with fine, even, radiating strife, impressed at 

 intervals so as to give the effect of obsolete ribs, which arc more apparent on 

 the middle of the shell; on the beaks some of the threads are stronger; 

 umboncs low and plump ; cardinal area impressed, narrow, short, and smooth ; 

 teeth small, uninterrupted, about twenty-four in all, the line gently arcuate; 

 inner margin fluted, with a slight insinuation near the base in front. Lon. 35, 

 alt. 33, diam. 22 mm. 



Glycymeris pennacea Lamarck. 

 Pectunc ulus pennaceus Lam., An. s. Vert., vi., i, p. 51, 1819 ; Reeve, Conch. Icon. Pe,titn- 



culus, pi. v., fig. 24, 1843. 



Pectunculus caroliniunus Conr., Med. Tert. No. I., cover p. 3, 1839. 

 Pectunculus carolincnsis Conr., Mecl. Tert., p. 63, pi. 35, fig. 2, 1840; Am. Journ. Sri., 



xli., p. 346, 1841. 

 rfctinifiilus linfatits Heilprin, Trans. Wagner Inst., i., p. 103, 1887; not of Lamarck or 



Reeve. 

 Not P. carolinensis Holmes, P. -PI. Fos. S. Car., p. 15, pi. iii., fig. 4, 1860. 



