NO. 3 CASSIDULOID ECHINOIDS — KIER IO3 



Periproct. — jNIarginal, higher than wide. 



Peristome. — Regular, pentagonal, anterior, in faint groove. 



Floscelle. — Bourrelets strongly developed (pi. 14, fig. 6), vertical 

 sides, curving convexly into peristome; phyllodes (text fig. 85) single 

 pored ; in half area of ambulacrum III arranged with 9 pores in each 

 outer series, 4 in each inner ; in other ambulacra pores of outer series 

 arranged in 2 columns with a total of 12 to 14 pores in each outer 

 series, 4 in each inner ; buccal pores present. 



Tuber culation. — Naked zone along midzone of interambulacrum 

 5 on adoral side. 



Occurrence. — Upper Cretaceous (Turonian) at Martigues(Bouches- 

 du-Rhone), and Castelet (Var), France. 



Location of type specimen. — Probably in d'Orbigny Collection, 

 Museum National d'Histoire Naturelle, Paris. 



Remarks. — d'Orbigny's figure does not show the naked area in 

 interambulacrum 5. I believe its absence in his figure is an error on 

 the part of the artist, as this naked zone is very evident in specimens 

 I have studied (see pi. 14, fig. 5). 



Synonym of PARAPYGUS 



Pseudocatopygiis Cotteau and Gauthier, 1895. Mission sci. Perse, ech. foss., 

 p. 62. Type species, Pseudocatopygiis longior Cotteau and Gauthier, by subse- 

 quent designation, Kier, herein. 



DESCRIPTION OF TYPE SPECIES 



PARAPYGUS LONGIOR (Cotteau and Gauthier) 



Plate IS, figures 3, 4; text figure 86 



Pseudocatopygus longior Cotteau and Gauthier, 1895. Mission sci. Perse, ech. 

 foss., p. 64, pi. 10, figs. 1-4. 



Material. — Four topotypic specimens studied in the Lambert Col- 

 lection, Sorbonne, Paris. 



Shape. — Medium size, 24 to 29 mm. long, elongate, inflated, great- 

 est width and height posterior to center. 



Apical system. — Anterior, four genital pores, probably tetrabasal. 



Ambulacra. — Petals short, equal length, wide, interporiferous zones 

 almost twice width of poriferous zones; poriferous zones of same 

 petal of unequal length, petals closing distally ; pore pairs conjugate, 

 outer pore transversely elongate, inner round. 



Periproct. — Marginal, longitudinally elongate, slight groove adoral 

 of opening. 



Peristome. — Anterior, pentagonal, slightly depressed. 



