90 
A ug. F . Foerste 
valve. Length, 9 mm.; width, 7.6 mm.; thickness, 6.2 mm., in one 
specimen . Apparently connected by intermediate forms with 
Homceospira schucherti, although extreme forms are readily dis- 
tinguished. 
Brownsport bed; north of the home of W. N. Davis, Bath 
Springs, Tennessee, associated with H. schucherti. 
Homceospira beecheri. 
(Plate I, Figs. 8 A, B.) 
Very small; length, 6.5 mm.; width, 6 mm.; thickness, 3.5 mm. ij 
Convexity of shell rather small, form broadly ovate, radiating j| 
plications more distinct at the beak than in FI, schucherti, 6 dis- 
tinct and I indistinct plication on each side of the median groove, j 
Beak of the pedicel valve erect, raised above that of the brachial j' 
valve, not strongly infolded. Median groove of brachial valve j 
scarcely larger than that between the plications nearest the groove, i 
occupied by a single very narrow plication which anteriorly divides | i 
into 2 very narrow parallel closely set plications very easily over- 
looked. Median groove of ventral valve broader, occupied by two ; 
narrow plications, much narrower than the plications on each side : 
of the median groove, but much more distinct than those occupy- ; - 
ing the base of the groove in the brachial valve. Named in honor 
of Mr. Charles Beecher. 
Brownsport bed: glade southwest of Brownsport Furnace, west i 
of Vice landing, Tennessee. 1 
Homceospira pisum sp. nov. i 
(Plate /, Fig. 7.) I 
Shell smaller and more convex than any of the forms described 
above. Length, 6.3 mm.; width, 5.5 mm.; thickness, 4.5 mm. f 
Lines of growth numerous near the anterior margin; shells evi- 
dently mature notwithstanding their small size. Beak of pedicel 
valve either curving strongly over that of the brachial valve, or j 
lifted considerably above the latter and only moderately overarch- 1 
ing the same. Median groove of both valves distinct; 2 very nar- | 
row plications occupy the median groove of the brachial valve, i 
while the two plications which are inserted along the median line 
of the pedicel valve a short distance from the beak almost equal 
