246 



University of California Publications in Geology [Vol. 8 



FICUS MODESTUS (Conrad) 



Pyrula modesta Conrad, Am. Jour. Sci., 1848, reprinted in IT. S. Geol. 



Survey Prof. Paper 59, p. 151, 1909. 

 Ficus modestus, Dall, U. S. Geol. Survey Prof. Paper 59, p. 74, 190/f. 



Original description: "Pyriform, thin, with approximate promi- 

 nent alternated revolving lines reticulated with minute longitudinal 

 lines; spire very short, conical; upper portion of body-whorl regularly 

 rounded. " 



Conrad's type was collected by Townsend from beds along the 

 Columbia River near Astoria, Washington. This species was later 

 collected from Astoria by W. Q. Brown, and identified by Dall, who 

 pronounced it a typical Ficus. According to Dall, the age is a matter 

 of doubt, due to a mixture of faunas in Brown 's collection ; it is either 

 Oligocene or Miocene, probably the latter. 



FICUS PYRIFOEMIS Gabb 



Plate 25, figure 1 



Ficus pyriformis Gabb, Palae. Calif., vol. 2, p. 48, pi. 14, fig. 4, 1869. 

 Ficus pyriformis, Arnold, Palaeontology of the Coalinga district, Calif., 

 IT. S. Geol. Survey Bull. 396, p. 18, 1909. 



Shell thin, pyriform ; spire very low ; body-whorl large, evenly 

 rounded, early whorls nearly enveloped; mouth-opening oval, ex- 

 panded, outer lip simple; columella slightly curving; canal straight, 

 wide. Ornamented by about forty spiral, flat ribs, equal in width to 

 half the interspaces ; these crossed by much finer and more closely 

 spaced vertical ribs. 



The shell is in shape much like the living members of the genus 

 Ficus, and the decoration is similar to that of Ficus dussumieri. 



Height 60 mm., width 40 ram. ; spire height 12 mm. ; mouth-opening 

 length 50 mm., width 25 mm. 



This species is characteristic of the basal part of the Monterey 

 group on San Pablo Bay and in the Mount Diablo region; Temblor 

 of Coalinga, upper horizon (U. S. G. S. Loc. 4631, Arnold) ; Temblor 

 of Santa Cruz Quadrangle (Arnold). 



FICUS EODEOENSIS, n. sp. 

 Plate 24, figure 1 



Shell thin, pear-shaped; whorls five; spire nearly flat; mouth- 

 opening large, sub-rhomboidal ; outer lip thin, smooth ; columella 

 curved, excavated ; canal short, wide, straight. The type, a cast, shows 



