8 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I42 



all these places it occupies beds of late Albian age. The label accom- 

 panying the specimen from Venezuela specifies "Cenomanian, Cogollo 

 limestone." As the Cogollo ranges in age from Aptian to Cenomanian 

 (Wolf Maync in Schwarck Anglade, 1956, p. 172), and as Enallaster 

 is not known to occur in the Cenomanian of Texas, this specimen is 

 probably of Albian, not Cenomanian, age. 



Occurrence. — Venezuela: Rio Socuy, Zulia (Creole Petroleum Co. 

 64769). Another Enallaster, too poorly preserved for specific identifi- 

 cation but resembling E. hravocnsis, comes from Rio Apon, Zulia 

 (Creole Petroleum Co. 50878). 



Figured specimen. — USNM 131 170. 



PSEUDANANCHYS sp. indet. 



Several fragments of a species of Pseudananchys are embedded in 

 hard calcareous rock. One of them retains the disjunct apical system, 

 and all show the characteristic elongated ambulacral pores. The 

 anterior petal is like the others. 



Occurrence. — Venezuela : Island of Chimana Grande, ofif Puerto 

 La Cruz, District of Bolivar, Anzoategui (Mene Grande Petroleum 

 Co. B-1615). 



Geologic horizon. — Early Cretaceous : Chimana formation, of early 

 to middle Albian age. 



HEMIASTER sp. 



PI. I, figs. 5-9 



Weakly cordate, with a shallow depression in front and a narrow 

 truncation behind ; upper surface moderately inflated, highest point 

 in front of the apical system ; posterior end sloping downward and 

 backward at an angle of al)0ut 45°. Apical system slightly anterior; 

 four genital pores rather far apart, equally spaced. Anterior ambula- 

 crum somewhat sunken ; pores of petaliferous part short, circumflexed. 

 Paired petals moderately sunken ; the anterior pair slightly the longer, 

 extending about two-thirds the way to the margin; pores elongated, 

 widely spaced; poriferous zones open distally; interporiferous zones 

 equal in width to the poriferous zones. Peristome far forward. Peri- 

 proct oval, near the top of the posterior sloping truncation. Faint 

 traces of a peripetalous fasciole. 



Length 41 mm. ; original width about 32 mm. ; height about 23 mm. 



Occurrence. — Venezuela : Location unknown, Monagas ( Creole 

 Petroleum Co. 19838). 



Geologic horizon. — Early Cretaceous. 



