222 



LAND AND FRESH- WATER SHELLS OF N. A. [PART I. 



Fig. 376. 



circular; peristome briefly expanded, with approaching 

 termini, the columellar expansively reflected. Length 11, 

 diam. 3| ; aperture 3^ mill, long, 3^ broad. 



Bulhnus gossei, Pfeiffer, Proc. Zool. Soc. 1845, 137 ; Mon. 

 Hel. Viv. II, 81 ; in Roemer's Texas, 456. — Reeve, &c. 

 — W. G. BiNNEY, Terr. Moll. IV, 135. 

 Cylindrella hydeana, concisa, &c., see Pfeiffek. 

 Macroceramus gossei, Pfeiffer, Mou. Hel. Viv. IV, 689. 



Var. /3. Somewhat smaller, the spots and blotches 

 more obsolete. 



From Jamaica, the variety from Texas. 



Little Sarazota Bay, near Charlotte Harbor, Florida. 



Macrocera- 

 mus gossei 



Fig. 377. 



PU]VCTIJ]»I, MoKSE. 



Shell bearing the usual characters of Eyalina (see p. 29), 

 from which it is generically separated by the nature of the jaw 

 and lingual dentition (see Fig. 378). 



Pimctum miniltissimuni, Lea. — Shell nmbilicated, sub- 

 globose, reddish horn-color, shining, marked with strong transverse 

 strise and microscopic revolving lines, both most 

 prominent near the umbilicus ; whirls four, convex, 

 gradually increasing, the last broadly umbilicated ; 

 aperture subcircular, oblique ; peristome simple, 

 acute, its columellar extremity subreflected. 

 Greater diam. 1^ mill., height 1. 



Helix minutissima, Lea, Trans. Am. Phil. Soc. IX, 



17 ; Proc. II, 82 (1841) ; Obs. IV, 17 (1844) ; 



Troschel, Arch. f. Nat. 1843, II, 124.— 



Pfeiffer, Mon. Hel. Viv. I, 87.— W. G. Bix- 



, NET, Terr. Moll. IV, 100, pi. Ixxvii, f. 6, 7.— 



Morse, Amer. Nat. I, 546, f. 45 (18 07). 



Helix minuscula, teste Binney, Terr. Moll. II, 221. 



Functwn minutissimum, MoBSE, Journ. Portl. Soc. I, 27, f. 69, 70, pi. viii, 



f. 71 (1864). 



Conulus minutissima, Tryon, 



Fig. 378. Am. Journ. Conch. II, 



257, pi. iv, f. 63 (1866). 



Maine, Massachusetts, 

 New York, Ohio. 



Jaw of Punctum minutissimum.' [Morse.] JaW COmpOSed of Sixteen 



Punctum minutissimum. 



• The character of the jaw would place the species in the subfamily 



