New Missouri Crinoids, Etc. — Rozvley. 69 
Pentremites benedicti. (nov. sp.) 
Figs. 29-30-31. Lateral views of three different sizes (natural size). 
Fig. 32. Ventral view of another specimen (natural size). 
This blastoid in outline is a miniature Pentremites pyri- 
formis. The basal cup is quite large and made up of three 
plates and produced below into a handle-like shape. The 
radials are about two-thirds the depth of the body, not reach- 
ing the summit. The interradials are exceedingly small elon- 
gate triangles, quite a distance below the summit. There are 
four spiracles and the anal opening around the summit. The 
ambulacra are short and broad, hardly more than half the 
length of the body. The<calycular plates are finely and beau- 
tifully striate, the striations running parallel with the plate 
sutures. 
This handsome little pentremite comes from the Warsaw? 
(St. Louis) limestone at Grand Tower, 111., and Wittenberg, 
Mo., and was found associated with Pentremites convidens and 
Granatocrinus spinulifera. Some years ago Mr. A. C. Bene- 
dict of Indianapolis loaned the writer specimens of a small 
Pentremites from the Warsaw? limestone of Indiana which 
probably belongs to the present species. The specific name 
is in honor of Mr. Benedict. 
Granatocrinus spinuliferus. (nov. sp.) 
Figs. 33-34. Lateral and ventral views of a large specimen, slightlv 
magnified. 
Fig. 25. Basal view, magnified two diameters. 
This little blastoid has a hight equal to the width, is 
strongly lobed, has rather deep sunken ambulacra, a base but 
slightly concave and extravagantly produced interradial 
plates, crowning the summit with five spines. 
The base is flat or slightly concave, rather large and com- 
posed of three quadrangular plates. The radial pieces form 
five distinct lobes deeply cleft for the narrow ambulacra. The 
interradials are small and extend hardly below the summit. 
Rach is produced upward into a spine-like process and ex- 
travagantly so in the case of the anal interradial. Ventral sur- 
face uncovered in the specimens collected. Ambulacra less 
than half as wide as the radial pieces, extending down full 
length of the fossil and are composed of many pieces. There 
