INDIANA PALAEONTOLOGY. U2. 



The specific name is in h(»nor of Mr. George Weber, of Louisville, Ken- 

 tucky. 



Found in the Middle Devonian (Upper Helderberg jijroup) at the F.ills of 

 the Ohio. Now in the collection of the author. 



S T R I A T O P O R A BE L L 1 S T R I A T A , N. Sp. 



Plate 34. Fio. 1l>. 



Corallum romose. composed of irregular sized cylindrical stems, varying 

 from ten to fifteen millimeters in diameter, varying in different examples. 

 Tubes rounded, unequal in size, from one half to two and one half millimeters 

 in diameter, opening oblique to the surface, with expanded margins. The in- 

 ner portion of the tubes are beautifully striated with longitudinal grooves. 

 pores round, rather large, situated in the grooves. 



The large sized stems, and the une(iual size tubes, and the tubes opening ob- 

 lique, with wide spreading margins, makes this easily recognized from all 

 other species. 



Found in the Middle Devonian (Upper Helderberg group) at the I'alls of 

 the Ohio. Now in the collection of the author. 



DOLATOCRINUS EXCAVATUS, var. Incarinutus, new var. 



(Rowley). 



Plate 35. Figs 1, 2. 3. 



The dorsal cup of this crinoid is low, flattened below the first radials of 

 the second series, and with a de» p basal funnel. The body is broadest where 

 the flattening begins and a little contracted Just below the arm bases. The ven- 

 tral disk is high for Dolatocrinus, being low conical. 



The basal plates, as usual, are hidden by the top stem joints, lying at the 

 bottom of an excavation as deep as the long first radials, and as high as 

 the arm bases. 



The stem is of moderate size and with amedium sized five lobed columnar 

 •canal. 



The first radials are six and seven sided, much longer than wide. The 

 •second radials are nearly twice as wide as long and. as usual, four-sided. The 

 third or axillary radials are broader than long and five-sided. Each upper 

 sloping side of this latter plate supports four plates of the second radial series, 

 all broader than long, and the first being larger than the axillary plate, itself. 



The first interradial plate is longer than broad, ten sided, and supports 



