22 PROCEEDINGS OF THE ACADEMY OF [Jan., 



Laxispira lumbricalis Gabb, Proc. Acad. Nat. Sci., 1876, p. 301, pi. 17, f. 7. 



The original label (to which the specimen was gummed?) and a 

 pencil drawing is in the Academy's collection, but the little shell is 

 either lost or broken. The large specimen figured by Gabb (/. c, 

 pi. 17, f. 6) as L. lumbricalis is only part of an internal cast of 

 Turritella vertehroides. 



MATHILDIID^. 

 Tuba reticulata Johnson, Proc. Acad. Kat. Sci., 1898, p. 461. 



CERITHIDiE. 

 Cerithium pilsbryi Whitfield, The Nautilus, VII, pp. 38 and 51, pi. II, f. 3, 1893. 

 " Chemnitzia " occidentalis Gabb, Jour. Acad. Nat. Sci., IV, 2 ser., 391, pi. 68, f. 10, 1860. 

 " Chemnitzia " spillmani Conrad, Jour. Acad. Nat. Sci., IV, 2 ser., 287, pi. 46, f. 48, 1860. 

 " Chemnitzia " corona Conrad, Jour. Acad. Nat. Sci., IV, 2 ser., 287, pi. 46, f. 50, 1860. 

 " Chemnitzia " meekiana Gabb, Jour. Acad. Nat. Sci., IV, 2 ser., 299, pi. 48, f. 1, 1860. 



APORRHAID^. 

 Anchnra arenaria (Morton). 



Rostellaria arenarum Morton, Syn. Org. Rem., 48, pi. 5, f. 8, 1834. 

 Anchura arenaria Whitfield, Mon. U. S. Geol. Sur., XVIII, 112, pi. 14, f. 

 10. 



Anohnra pennata (Morton). 



I have been unable to positively determine the tj^pe of Rostellaria 

 pennata Morton {Syn. Org. Rem., 48, pi. 19, f. 9). A specimen num- 

 bered (219) in Morton's handwriting (as most of his types are) agrees 

 well with the description but not with the figure. It is a cast, and 

 characteristic of the material from Prairie Bluff, Alabama. Three 

 specimens (one nearly perfect) from Snow Hill, North Carofina, which 

 Conrad has doubtfully referred to this species, on an original label, but 

 which he has described and figured erroneously as ^'Anchura rostrata 

 Morton" (Kerr's Geol. N. C, App., 12, pi. 2, f. 28), with a reference to 

 Gabb's description and figure of Alaria rostrata. It is an entirely 

 different species from the one described by Gabb, having an expanded 

 lip like that figured by me (Proc. Acad. Nat. Sci., 1898, p. 463, f. 3), 

 the entire lip showing one or two small projections below. Whether 

 the form figured by Conrad or the one figured by Whitfield (pi. 14, 

 figs. 7, 8) is the R. pennata of Morton I am unable to say. 



Anchnra abrnpta Com., var. acntispira Whitfield, Mon. U. S. Geol. Sur., XVIII, 114, pi. 14, f. 4 



The two other specimens figured by Whitfield as ahrupta? (pi. XIV, 

 figs. 1-3) I should not consider the same species. 



Anchnra solitaria Whitfield, Mon. U. S. Geol. Sur., XVIII, 117, pi. 14, f. 9, 1892. 

 Anchnra pergracilis Johnson, Proc. Acad. Nat. Sci., 1898, p. 463, f. 2. 



