42 
THE SPECIES OE BLASTOIDEA 
[Pentremites conoideus, continued.] 
Carboniferous, St. Louis Group, Warsaw Limestone: Spergen Hill,, 
Indiana, U.S.A. [E. 1056 a.~\ Micro-section showing hydrospires. 
Pentremites conoicleus , Hall: R. Etheridge fil. & P. H. Carpenter, 1886, 
Cat. Blastoidea Brit. Mus. p. 163, pi. ii, f. 16. Lower Carboniferous, 
St. Louis Group, Warsaw Limestone : Spergen Hill, Indiana, U.S.A. 
[E. 8112.] One theca. 
Pentremites conoicleus , Hall: R. Etheridge fil. & P. H. Carpenter, 1886, 
Cat. Blastoidea Brit. Mus. pp. 95, 162, pi. iii, f. 4. Lower Car¬ 
boniferous, St. Louis Group, Warsaw Limestone: Spergen Hill, 
Indiana, U.S.A. [E. 8113.] Theca with wall partly broken away. 
Pentremites conoicleus , Hall: R. Etheridge fil. & P. H. Carpenter, 1886, 
Cat. Blastoidea Brit. Mus. pp. 95, 162, pi. iii, ff. 5 & 6. Lower 
Carboniferous, St. Louis Group, Warsaw Limestone : Spergen Hill, 
Indiana, U.S.A. [E. 8114.] A radial showing hydrospires. 
Pentremites conoideus, Hall: 11. Etheridge fil. & P. H. Carpenter, 1886, 
Cat. Blastoidea Brit. Mus. p. 163, pi. ii, f. 17. Lower Carboniferous, 
St. Louis Group, Warsaw Limestone : Spergen Hill, Indiana, U.S.A. 
[E. 8115.] A theca. 
Pentremites conoideus , Hall, • var. koninckanus, Hall: R. Etheridge fiL 
& P. H. Carpenter, 1886, Cat. Blastoidea Brit. Mus. p. 163, pi. ii, 
if. 18,19,21,22,23. Lower Carboniferous, St. Louis Group, Warsaw 
Limestone: Spergen Hill, Indiana, U.S.A. [E. 8116.] Eive thecas, 
said to be the figured specimens; if so, the figures are slightly larger 
than natural size. 
Pentremites conoideus , Hall, var. koninckanus , Hall: R. Etheridge fil. & 
P. H. Carpenter, 1886, Cat. Blastoidea Brit. Mus. pp. 94, 95, pi. iii, 
ff. 7, 8, 9. Lower Carboniferous, St. Louis Group, Warsaw Lime¬ 
stone : Spergen Hill, Indiana, U.S.A. [E. 8117.] A theca in three 
fragments, showing interior. 
-. Lower Carboniferous, St. Louis Group, Warsaw Limestone: 
Spergen Hill, Indiana, U.S.A. 
[E. 773.] Eourteen thecas, some cut across, and three radials 
showing hydrospires. 
[E. 774.] C. Waehsmuth Coll. Twentj^-nine thecas in chert, 
many of them hollow. 
[E. 1056, 6.] Micro-section showing hydrospires. 
[E. 1056, c.] Transverse micro-section of theca. 
-. Lower Carboniferous, St. Louis Group, Warsaw Limestone : 
Salem, Indiana, U.S.A. [E. 7994.] C. S. Beachler Coll.; presented 
by E. A. Bather. Pour thecas. 
--. Lower Carboniferous, St. Louis Group, Warsaw Limestone : 
Monroe Co., Illinois, U.S.A. [E. 8165.] T. A. Worthen Coll. 
Three thecas. 
--. Lower Carboniferous, St. Louis Group, Warsaw Limestone: 
Spergen Hill, Indiana, U.S.A. 
[E. 775.] C. Waehsmuth Coll. Eighty-two thecas in chert, manjr 
hollow ; including several young ( = var. Tconinckanus ). 
[E. 776.] Twelve young thecas (=var. konirickanus). 
[E. 777.] Thirty-two young thecas ( = var. koninckcinus). 
