GLYPHIS. 213 



G. TANNERI Verrill. PL 63, figs. 25, 26. 



Shell large, ovate, rather thin, with regularly and finely decus- 

 sated sculpture. Apex nearer the anterior (smaller) end, moder- 

 ately elevated. Perforation not large, round-ovate, conformable 

 with the outline of the shell but more rounded, whole surface cov- 

 ered with rather fine, raised, radiating lines, with interstices of sim- 

 ilar width or narrower ; these are decussated by numerous concen- 

 tric raised lines, which rise into nodules, or towards the margin 

 form small, arched lamellse in crossing the radii. Shell, externally, 

 pale yellowish-gray, internally lustrous bluish-white ; edge finely 

 crenulated. Length 46, breadth 31, height 16 mill. ; longest diam- 

 eter of apical foramen 4, its breadth 3 mill. (Verrill.') 



Of Delaware Bay to Hatteras, in 104-142 fms. 



F. tanneri V., Proc. U. S. Nat. Mus. v, p. 333, 1882; Trans. 

 Conn. Acad. Sci. vi, p. 255, t. 29, f. 13, 13a. Glyphis tanneri DALE, 

 Cat. Mar. Moll. S.-E. U. S. p. 170. 



Closely allied to the Maryland Miocene fossil F. redimicula Say, 

 (Journ. A. N. S. Phil, iv, p. 132, t. 8, f. 1.), but longer, narrower, 

 less elevated, the orifice less central. It is also allied to F. alternata 

 Say. 



G. PATAGONICA Orbigny. PL 61, figs. 21, 22, 23. 



Shell ovate, narrowed in front, conical ; the summit in front of 

 the middle ; front slope straight, about half the length of the 

 slightly convex posterior slope ; sculpture consisting of close fine 

 subequal radiating riblets, decussated by fine concentric raised 

 threads. 



The color is white, or broadly greenish rayed ; inside white ; hole- 

 callus very distinctly truncated posteriorly. Orifice large, wide. 

 Length 38, alt. 14 mill. Length 25, alt. 9 mill. 



Rio Janeiro to Patagonia. 



F. patagonica ORB., Voy. dans PAmer. Merid. p. 476, t. 64, f. 1- 

 3. 



Decidedly more finely latticed than F. listeri, more like the 

 Mediterranean G. italica. The fissure is larger than usual in 

 Glyphis, and is situated at the anterior third of the length. 



G. SUBROSTRATA (Gray) Sowb. PL 61, fig. 18. 



Shell oval, somewhat depressed, anteriorly subrostrated, extremi- 

 ties raised ; white within, with a crenated border ; externally radi- 



