342 PROCEEDINGS OF THE ACADEMY OF [1881. 



1855. Batoor. rotundas Yandell and Shutn. (Figured in Christy's letters on Geology, 



184.S, as Actinocriiiit'g). Yand. and Shum., Geol. Rep. Missuuri by Swallow, 



pt. ii, p. 191, PI. A, figs. 2 a, b; Meek and Worth., 1873, Batocr. rotundus. 



(iool. Rep. 111., V, p. .367. The leading fossil of the Upper Burlington liuiest. 



Boone an I Marion Cos., Mo., Quincy and Oquaka, III., Burlington, Iowa. 



This is a somewhat variable species ; it sometimes has a good sized anal 'ube, 



while in other cases this seems to be modified into a simple vault opening; 



the number of arms var es from eigbtefn to twenty-two. 

 Sijii. Actinocr. oblatus Hall. Supp. Geol. Rep. Iowa, p. 38. (This species 



((iffers only in having twenty-two arms). 

 1860. Batocr. similis Hall. (Actinocr. similis) Supp. Geol. Rep. Iowa, p. 40; Meek 



and Worth., 1873, Batocr. similis, Geol Rep. 111., v, p. 367. Keokuk limest. 



Iowa and Illinois. 

 .'^^li. Actinocr. clavigerus Hall, 1860. Supp. Geol. Rep. Iowa, p. 44 ; Mek 



and Worth., 1867, Batocr. clavigerus, Geol. Rep. III., v, p. 367. 

 1860. Batocr. sinuosus Hall. (Actinocr. sinuosus) Supp. Geol. Rep. Iowa, p. 27, 



Photogr. PI. 3, figs. 8, 9 ; Meek and Worth., 1873, Batocr. sinuosus. Geol. 



Rep. 111., V, p. 3C8. Upper Burlington limest. Burlington, lowii. 

 *1860. Batocr. steropes Hall. (Actinocr. steropes) Supp. Geol. Rep. Iowa, p. 43. 



Keokuk limest. Keokuk, Iowa. 

 1869. Batocr. trochiscus Meek and Worth. Proc. Acad. Nat. Sci. Philad., p. 354; 



Geol. Rep. III., v, p. 372, PI. 5, fig. 6. Burlington and Keokuk Transition 



Bed. Iowa and 111. (A more mature stage of B. Christyi). 

 1868. Batocr turbinatus Hall. (Actinocr. turbinatus) Geol. Rep. Iowa, i, pt. ii, 



p. 587, PI. 11, fig. 1 ; Meek and Worth., 1873, Batocr. turbinatus, Geol. Rep. 



111., v, p. 367. Lower Burlington limest. Burlington, Iowa. Syn. Batocr. 



turbinatus, var. elegans Hall. Geol. Rep. Iowa, i, pt. ii, p. 588, PI. 11, 



fig. 5. 

 *1857. Batocr. Yandelli Shumard. (Actinoc. Yandelli) Trans. St. Louis, Acad, i, 



p. 9, PI. 1, figs. 4 a, b; Meek and Worth. (Actinocr. Sect. A.), Geol. Rep. 



111., V, p. 341. Keokuk limest. Bottom mould Knob, Jeflerson Co., Ky. 

 *1880. Batocr. Wacbsmuthi White. (Actinocr. Wachsmuthi. not A. Wachsmuthi, 



1862 = Actinocr. scitulus). Author's Edit, from the 12th Annual Rep. of 



U. S. Geol. Surv. by Hayden, p. 162, PI. 40, figs. 1 a, b ; Geol. Rep. Ind. 



for 1879-80, p. 142, PI. 7, fig. 6. Keokuk limest. Crawfordsville, Ind. 



We add the following new species : — 



Batocrinus Lovei, Wa,chsm. and Spr. 



Form of body wheel-shaped, as wide as high, running nearly to 

 a point at each pole. Plates of the calyx smooth, without orna- 

 mentation, those of the dome convex. Basals forming a conical 

 cup, slightly truncate below. Radials 3X5; the first larger than 

 both the others combined ; second twice as wide as high ; the 

 third with obtuse upper angles. There are two rows of two plates 

 in the two succeeding orders, those of the third order larger than 

 those of the second, and the outer plates wider than the inner 

 ones. Each ray has four arm openings — except the anterior which 



