192 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I44 



loup), having the same shape, petal arrangement with shtUke outer 

 pore, tetrabasal apical system, inframarginal transverse periproct, 

 and strikingly similar phyllodes. For this reason Hungaresia is 

 herein considered a synonym of Vologesia. 



Synonym of VOLOGESIA 



Pseiidovulech'mus Szorenyi, 1955. Geo!. Hung., ser. Palaeont., vol. 26, p. 79. 

 Type species by original designation, Psendoimlechiniis rotundatus Szorenyi. 



Remarks. — I have studied one specimen of the type species and 

 suspect that it is an immature specimen of Vologesia hungarica 

 Szorenyi. This specimen and all the specimens studied by Szorenyi 

 are small, and they came from the same locality as the specimens of 

 V. hungarica. The specimens referred to P seudovulechinus rotun- 

 datus look exactly like what a small specimen of V. hungarica would 

 be expected to look like, having a similar high test, petal arrangement, 

 inframarginal periproct, and single-pored phyllodes. Szorenyi was 

 not able to discern the apical system on her specimens, but on the 

 specimen sent to me it is definitely tetrabasal. 



PLIOLAMPADIDAE Kier, new family 



Medium to large, elongate, moderately inflated; apical system 

 monobasal, three or four genital pores; periproct inframarginal, 

 usually longitudinal ; peristome anterior, usually higher than wide ; 

 petals narrow or broad, open or closed, outer pore greatly elongated 

 transversely, strongly conjugate; poriferous zones of same petal of 

 same length ; single pore in all ambulacral plates beyond petals ; bour- 

 relets well developed, few or many pores ; buccal pores present ; 

 adoral tubercles slightly larger than adapical, usually no naked, 

 granular zone in interambulacrum 5. 



Genera. — Pliolampas, Termieria, Zuffardia, Kephrenia, Santee- 

 lampas, Neocatopygus, Ilarionia, Gitolampas, Daradaster, Eurhodia, 

 Studeria, Pseudopygaulus. 



Range. — Cretaceous (Senonian) to Recent. 



Comparison with other genera. — The Pliolampadidae are not very 

 homogeneous and may not represent a natural or phylogenetic group- 

 ing. They are distinguished from the Echinolampadidae by their 

 lack of a narrow, naked, granular zone in interambulacrum 5 (except 

 in Ilarionia and some species of Gitolampas) , wider outer poriferous 

 zones, and poriferous zones of equal length in the same petal. They 

 differ from the Faujasidae in not having large pointed bourrelets 

 and very broad phyllodes. 



