EPIPHRAGMOPHORA. 193 



thickened nor expanded, margins approaching ; parietal ivall densely 

 spirally striated. Type G. newberryanum, pi. 31, figs. 36, 37. 



Jaw low, wide, slightly arcuate, without median projection, with 

 about 15 ribs extending nearly to the ends. (PI. 31, fig. 38.) Rad- 

 ula long and narrow, formula 30.17.1.17.30 ; basal plates of median 

 and lateral teeth long, the mesocones about the same length, side 

 cutting points developed. Marginal teeth with shortened basal 

 plates, the inner cusp rather short and stout, ectocone small (pi. 31, 

 fig. 40, middle with 1st lateral, 23d, 24th, 25th, 37th and 47th mar- 

 ginal teeth). 



Genitalia (pi. 31, fig. 39) characterized by a stumpy penis with 

 short, obtuse flagellum ; dart sack obsolete or absent, but one club- 

 shaped mucus gland, like that of Epifihragmophora Jidelis present ; 

 spermatheca duct long, bound to oviduct, but free above and 

 below. 



A monotypic genus, allied to Epiphragmophora, but differing in 

 the shell, which has much the form of the typical Zonites or Patula^ 

 in the wide many-ribbed jaw, and in the genital system, which appar- 

 ently lacks a dart sack, although the mucus gland is retained. Fur- 

 ther examination is needed, to ascertain whether any trace of the 

 dart sack is present, for I suspect this will prove to be the case. 

 The single species is common around San Diego, on southerly ex- 

 posed hill-sides under rocks. 



G. newberryanum W. G. B., iii, 110. Los Angeles, Cal., to Todos 

 Santos Bay, L. Cal. 



Genus EPIPHRAGMOPHORA Doring, 1875. 



Epiphragmophora DORING, Bol. Acad. Nacional de Ciencias Cor- 

 dova i, p. 446, for H. hieronymi and H. cuycma. + Angrandiella 

 ANCEY, Couchologists' Exchange, i, p. 20, Nov. 1886, type H. 

 angrandi. + Pcecilostola ANC., I. c., type H. farrisi (not Pcecilostola 

 Still, 1870, Hemiptera, Pcecilostola Chaud., 1871, Coleoptera, or Pce- 

 cilostolus Giinth., 1863, Reptilia) Pilsbrya ANC., t. c., p. 54, Apr., 

 1887, same type. -\-Helmmthoglypta ANC., Conch. Exch., i, p. 76, 

 June, 1887, type H. tudiculata. -\-Micrarionta ANC., Le Natural iste, 

 Dec., 1880, p. 334, type H. facia. -\-Aglaia of American authors, not 

 Albers. -\-Arionta of authors, not Leach -{-LysinoePiLS., check list, 

 not H. & A. Adams-}- Campyloea (American species) v. IHERING, 

 Morphol. u. Syst., not of Beck. -\-Euparyphaof American authors, 

 not Hartmann. 

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