TRANSACTIONS OF WAGNER 

 608 



TERTIARY FAUNA OF FLORIDA 



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

 the Eocene G. trigonella. 



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

 G. acuticostata Sby., described from St. Domingo, and G. jainaicensis Dall. 

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



The Eocene Pectunculiis circulus 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. Pcctunctiliis patiilns Conr. was described (1849, Geo!. Wilkes Expl. 

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

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

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

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

 P. patuliis by Gabb. There are several Chico-Tejon species. The recent Axintea 

 intcrtncdia of Carpenter has been reported from the Californian Pliocene. 



Grlycsmieris jamaioensis n. s. 



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

 to G. pciinacca 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 stride, impressed at 

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

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

 umbones 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. 



Grlycymeris pennacea Lamarck. 

 Pectiinculus pennaceus Lam., An. s. Vert., vi., i, p. 51, 1819 ; Reeve, Conch. Icon. Pectiin- 



ctihis, pi. v., fig. 24, 1843. 

 Pectunculiis caroliniamis Conr., Med. Tert. No. I., cover p. 3, 1S39. 

 Pectunculus carolinensis Conr., Med. Tert., p. 63, pi. 35, fig. 2, 184/; Am. Journ. Sci., 



xli., p. 346, 1 841. 

 Pectunculus lineatus Heilprin, Trans. Wagner Inst., i., p. 103, 1887 ; not of Lamarck or 



Reeve. 

 Not P. carolinensis Holmes, P.-Pl. Fos. S. Car., p. 15, pi. iii., fig. 4. i860. 



