STROBILOPS, S. G. DISCOSTROBILOPS. 49 



Island, Demorey Key, Fikahatchee Key, Josselyn Key, Dismal 

 Key, all in Lee Co. (C. B. Moore) ; Volusia Co. at Tick Island 

 (Pilsbry and Johnson) ; and Lake Helen (G. W. Webster) ; 

 near Gainesville (T. Van Hyning) ; St. Au^stine (C. W. 

 Johnson); Imri, Hamilton Co. (E. B. Chope). Mississippi: 

 mouth of West Pascagoula River, Jackson Co. (C. B. Moore). 

 Georgia : Bonaventure Cemetery near Savannah, according to 

 W. G. Binney. 



Mexico: Tampico and Valles, S. L. Potosi (A. A. Hinkley). 



Helix vendryesiana Gloyne, Joum. de Conchyl. XIX, 1871, 

 p. 333. — Strohila huhhardi C. W. Johnson, Nautilus III, p. 

 20. — G. W. Webster, Naut. VII, pp. 84, 94 (variation in 

 teeth). — Strohilops huhhardi Gulick, Proc. A. N. S. Phila. 

 1904, p. 413 (Bermuda, fossil). — Verrill, Trans. Conn. Acad. 

 Sci. XII, p. 168, f. 53 (not uncommon living, Bermuda). — 

 G. H. Clapp, Naut. XXVII, p. 64 (Bimini Is.).— J. B. Hen- 

 derson, Naut. XXVII, p. 41 (many localities in Havana and 

 Pinar del Rio provinces, Cuba) . — Hinkley, Naut. XXI, p. 76 

 (Mexico).— Walker, Naut. XXXI, p. 56 (Palm Beach, Fla.). 

 — Vanatta, Nautilus XXI, p. 100; XXVI, pp. 12, 19, 32; 

 XXXIII, p. 18 (distribution in Florida). — Strohilops huh- 

 hardi stevensoni Pilsbry, Proc. A. N. S. Phila., 1899, p. 404. — 

 Rhoads, Nautilus XIII, p. 46 (under bark of dead limbs in a 

 mangrove swamp, Biscayne Bay near State Agricult. Sta., 

 Miami, Florida). 



Specimens from Cuba (PI. 7, fig. 6, El Abra, Vinales, Prov- 

 ince of Pinar del Rio) are small, as Henderson has remarked. 

 The one figured measures 2 mm. diameter with 41/^ whorls. 

 Sculpture weak. 



The form found in Bermula (PI. 7, figs. 10, 11, 12) is large 

 with the lip somewhat more thickened than usual. There is 

 no interparietal lamella. The umbilicus is wider than in other 

 lots, but somewhat variable ; in a specimen 2.85 mm. diameter 

 the umbilicus is contained only 2% times. 



In Florida (PL 8, figs. 1-6, Miami; 8, 9, Lake Helen) the 

 species appears to be generally spread. The parietal lamella 

 is low, the infraparietal generally not emerging though it be- 

 comes high far within. There are generally three basal folds 

 (PI. 8, fig. 7), but often four (PI. 8, fig. 9), and in rare cases 



A(. 



