TE ID A 18) OO 
ENGONOCERAS. 
Fic. 1. Engonoceras pierdenale var. commune Hyatt..--.----..---- SSPE NE ace RNS pli hes Sa 165 
Fig. 1. Suture, x 2. Bell County, Tex.; Fredericksburg group, Comanche series. 
Coll. U. 8. Nat. Mus., No. 8301. 
ENG S29 2—G'a eH G OMLOCE AS) StUD] ECLLUIT tcl uy el Leyes ea 168 
Figs. 2,3. A specimen from Gabriel, Williamson County, Tex.; Coll. Mus. Comp. 
Zool., Cambridge. 
4. Portion of septum of same specimen—the middle one of the three indis- 
tinetly shown in fig. 2, & 2. 
5. Last septum of same specimen, 2. 
6. Septum of a smaller specimen from same locality, x 2. 
Washita(?) group, Comanche series. 
294 
