804 



PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. XXIX. 



At all (M'ents this should not be placed in the g-enus Polyernm. 

 Probably a Protorthopteron or a protoblattoid. 

 Cotype><.—C2it. No. 38155, U.S.N.M. 



PSEUDOGERARUS, new genus. 



PSEUDOGERARUS SCUDDERI, new species. 



Gerarus? Scuddeh, ^Nleiu. Boston Soc, III, 1S85, p. .'!44, jil. xwii, lii^. .'5. 



Locality. — Mazon Creek, near ]\Iorris. Illinois. Pennsyhunian: 

 Kittanning 'I (Allegheny) stage. 



Holotype.—Cixi. No. 38151. U.S.N.M. 



Fig. 104. — P.seudogerari's scudderi. 



CHRESTOTES Scudder. 



CHRESTOTES LAPIDEA Scudder. 



Chrestotes lapidcd Scudder, Ueol. Surv., Illinois, J II, lS(i8, p. 567, fig. 2; Mem. 

 Boston Soc, III, 1885, p. 341, pi. xxxi, fio;. 2. 



Local !ty. — Mazon Creek, near Mori-is. Illinois. Pennsylvanian: 

 Kittaiming- ^ (Allegheny) stage. 



This species is to l)e regarded as the t3'pe of the genus ( 'Jii'estof,^^. 

 The form may ))elong to the protorthopteres. 



? CHRESTOTES DAN^E (Scudder). 



3/irtwwt (Zfm.T Scudder, Geol. Surv., Illinois, III, ISHS, p. 56(5, tig. 1. 

 G'erar-MS dan.T Scudder, Mem. Boston Soc, 111, 1885, p. 845, j>l. xwi. tig. 5. 

 Chrestotes dantv Brongniart, Bull. Soc. Rouen (3), XXI, 1885, ji. «)6. 

 ^Tgronts rfana' Melander, Jour. Geol., XI, 1903, p. 197. 



Locality. — Mazon Creek, near Morris, Illinois. Pennsylvanian: 

 Kittanning ^ (Allegheny) stage. 



This form may belong in the genus Chrestotes. 



