870 The American Geologist. Dcci'mber, it<95 
single asterisk have not hitherto been seen in the Belvidere 
district except in the Champion shell-bed; they occur in the 
North Texas region as follows : 
Jlo(cctypHs jjlanatus was recorded from the Kiowa shales in 
prefatory remarks of the writer's article on "Vertebrata from 
the Neocomian of Kansas."* It is a Fredericksburg fossil, 
being barely known from the Bosque division also, and occur- 
ring rarely in the Washita and Denison divisions, the com- 
mon IIolecty2)us of the latter being II. castilloi Cotteau.f 
Ostrea roanokensis is most common in the Denison division, 
but occurs also in the Fredericksburg division (in the Coman- 
che Peak limestone) of Tarrant county, Texas. 
Typical Gryx>hcea hilli is an abundant characteristic fossil 
in the Comanche Peak limestone and in the Walnut beds of 
Tarrant and Williamson counties, Texas. 
Lima semilo'vis was described from specimens obtained in 
the Denton marls. Soon after it w^as published, the writer col- 
lected it in the Comanche Peak limestone also. 
Pinna comancheana, in the typical area, is usually if not al- 
ways a Fredericksburg fossil. It is common in the lower part 
of the Comanche Peak limestone of Williamson and Tarrant 
counties, Texas. In the Tucumcari district of New Mexico it 
occurs with Cardita belviderensis in a terrane that probabljMie- 
longs to the Kiowa shales. 
Astarte 2)ikensis is a species of the Bosque division. 
Ilomomya alta is listed as a fossil of the Glen Rose beds by 
Prof. Hill in his paper on "Outlying Areas of the Comanche 
Series, etc." 
Of the horizon of Turritelki »a/r//oc/«/ in Texas, Dr. White 
gives no record more precise than "Cretaceous." 
Of the 22 forms common to the ChamiDion shell-beds and 
the Kiowa shales, 7 are not known south of the Ouachita 
Paleozoic area, 1 is unknown as to species, and 14 occur in 
the North Texas region as follows : 
Belonging to the Bosque division : JVafica co.^.satofensis. 
*This article was first published in a separate edition without plates, 
May 12, 1894, and was republished in volume 5 of Colorado College 
Studies, with the plates, April 5, 1895. 
■|"The writer having recently examined a large collection of south- 
western specimens of Holectypus submitted to him by his friend, Mr. 
Robert W. Goodell, does not now consider H. char/foni specifically 
distinct from H. castilloi. 
