OF DENISON UNIVERSITY. 
II7 
pression and extend across the body of the shell. Height, .16 in.; 
width. .20; height of body whorl, .14; height of aperture, .9; width 
of band at aperture, .02; number of tubercles in one-tenth inch, 12.” 
Though somewhat larger our specimen agrees in all visible char- 
acters with the Michigan species. 
From shale above conglomerate II, at Newark, where it is asso- 
ciated with Orbiculoidea pleuntes. Lingula waverlyensis ^ Allo 7 'isnia con- 
sanguinatus, Conularia newherryi, etc. 
SCHIZODUS HARLAMENSIS, sp. n. 
(Plate VI, Fig. 2.) 
Shell small, subtrigonal, considerably longer than high, rather 
flat ; beak prominent and produced ; anterior side nearly at right angles 
with the basal and hinge margin, abruptly rounded above and below ; 
lower margin nearly straight and parallel to the hinge ; posterior mar- 
gin but slightly oblique, moderately curved; central lower surface a. 
triangular plahe, posterior to which the post-umbonal slope slopes as 
a more oblique plane to the margin, while the ant-umbonal portion is 
more convex. Surface smooth except for the usual fine concentric 
striae. In this species we see a link between Chemung and Waverly 
forms, if indeed, this does not prove identical with a Chemung form. 
The resemblance to Schizodus medinaensis is unmistakable. One mile 
east of Harlam, Delaware Co. In shales a few feet above the Berea 
flags. 
PLATE I. 
Figs. 1-3', Froetus {Philhpsia'^) precursor. Pier p. 54. 
P"igs. 4-5. Phaethonides spinosus, P- 
P'ig. 6. Phillipsia meraviecejtsis, Shum p. 54. 
P’ig. 7. Froetus mitiuius, Her. Camera drawing of nearly perfect individ- 
ual, highly manified p. 5^- 
P'ig. 8. Phillipsia s erratic audata p. 52. 
Figs. 9-15, Phaethonides imrnaturusgciQ^x p. 59. 
Fig. 10. Phaetlion-ides occidentalisgAox p. 57. 
Fig. II. Phillipsia seTJ-aticaudata 71 
P'ig. 12. . Proetus {haldemani 7 ) p. 55. 
Fig. 13. Proetus {Phillipsia) sp. close to P. auriculatus p. 
Fig. 14. Proetus {Phillipsia) ariculalus^ H. {=shumardi) p. 54. 
P'ig. 16, Phillipsia (.fi consors^ Her p 53 - 
