LECANOCRINIDAE 
65 
LECANOCRINUS Hall 
Plate 20 
Lecanocrinus Hall, Pal. New York, 2, 1852, p. 199.— Springer, Crinoidea Flexibilia, 1920, p. 125. 
Rays in contact except at the anal side. Radianal rhombic, obliquely to 
lower left of r. post. R. Anal x alone. Arms dichotomous, interlocking. 
Genotype. Lecanocrinus macropetalus Hall. 
Distribution. Silurian to Devonian ; Gotland, England, America. 
Lecanocrinus pusillus Hall 
Plate 20, figs. 1-5 
Lecanocrinus pusillus Hall, Trans. Albany Inst., 4, 1863, p. 200. — Springer, Crinoidea Flexibilia, 1920, 
p. 131, pi. I, figs. 1-13. 
Waldron shale; Waldron, Indiana; Newsom, Tennessee. 
Lecanocrinus pisiformis (Roemer) 
Plate 20, figs. 6-12 
Poteriocrinus pisiformis Roemer, Sil. Fauna Westl. Tennessee, i860, p. 54, pi. 4, figs. ya-d. — Lecanocrinus 
pisiformis Springer, Crinoidea Flexibilia, 1920, p. 135, pi. i, figs. 14-36. 
Beech River formation; Decatur County, Tennessee. 
Lecanocrinus elongatus new species 
Plate 20, figs, ij, 14 
Similar to L. pisiformis, but crown more elongate, and basals relatively 
higher. 
Laurel limestone; St. Paul, Indiana. 
Lecanocrinus meniscus Springer 
Plate 20, figs. 15- 13b 
springer, Crinoidea Flexibilia, 1920, p. 140, pi. i, figs. 27a-c. 
Beech River formation; Decatur County, Tennessee. 
Three species have been described from the Rochester shale, one from the Racine, and 
one from the Bainbridge of Missouri; and 10 species described as Lecanocrinus have been 
referred to other genera. See Bassler’s Bibliogr. Index, page 692. 
ANISOCRINUS Angelin 
Plate 20 
Anisocrinus Angelin, Icon. Crin. Suecc., 1878, p. 13. — Springer, Crinoidea Flexibilia, 1920, p. 160. 
Rays above radials separated by solid plates arched over by brachials. RA 
irregularly under r. post. R, above line of BB. Anal x and one large iBr alone 
or followed by others. Arms dichotomous. 
Genotype. Anisocrinus interradiatus Angelin. 
Distribution. Gotland, America. 
