- 401 - 



OARDimi ( X . . . JIUK) B0,V.DS::.>lI3i;; Dall. 



Gardlum r.iurlcatiim 'Suppy, 1674, Ccol. .- -, " \ ^afle 2, vol. 1, p. 



442 (check list), ez arte, non Tin. 

 Jarflii n ( Traohyc ar d ivm) var? "boir-rlenense Dall, I'lCO, ..z. Jagner 



Free Inct. Sci., Pliiladelphia, vol. Z, ot. 5, pp. 1087- 



1038. 

 ITot gardii-m ( Trachycarclliim ) 'ho-'rlenenae Dall, 191 , ...11. U, ^. 



i:at. IIus., no. 90, p. 143. 



Pes G rip t ion .- "1"-''^. .qopoipr from t'- --^ larl and from 



the sile:-: oe's at Ballast Point, 2ampa -ay, Florida, was identi- 

 fie'^ with the recent mariGeti.im hy G-uppy. It has about the same 

 ntmiber of ribs (thirty-seven to f ort^'-'^^-i'^l fr/i tTi^ wonlpture is 

 much the same in character, , oaf the siiiiilarities are all in Biinia- 

 tiire; the shell is al'.Ta^.s small (alt. 15.5, Ion. 15.5, diam. 9 mm. 

 for the largest seen), li,^.. l.^_^„^r prc'^'^rtT ,iiv:i tely than 2» Jl'llZi- 

 ^atnm of the same '- £, v/tth the ribs more compressed and cro"'decl. 

 J^. Luirieatmn has not been found in any horizon betv/een ?o""deii and 

 the Pleistocene, ^•^- ^ '^h i*-- "^ra I^rp-t-T' - p.-'-.-m- -.n for doubting- 



whether the older shell is Identical \.l h tlie newer. I therefore 

 propose for it the name of bowdenense , which, if conne-cting lini-rs 

 should he re after be fo , " ■■ ' "''■• '"^•'•''ed as of varietal value." 

 (Dall, 1000). 



