12 Ech. 
ECHINODERMATA. 
pp. 382- 402, pi. xxiii. Loriol, Monographie des Grinoides fossiles de la 
Suisse, l^re partie ; Abh. d. schweiz. palajont. Ges. i 7 . O. A. White 
describes two new Devonian Crinoids, from Iowa ; P. Ac. Philad. 1876, 
p. 28-30 (Strohilocystites, g. n.). W. M. Gabb describes {tom. cit» 
pp. 175-179, pi. V.) remains of cretaceous Pentacrini and Goniaster. A 
new genus of Crinoids (Cambrian), Macrocy Stella, Callaway, is described ; 
J. G. Soc. xxxiii. p. 670, pi. xxiv. fig. 13. W. Percy Sladen, On the 
genus Poteriocrinus, and allied forms ; P. Geol. Polyt. Soc. (2) iv. p. 242, 
et seq. Nikitin, Ueber Mesites pusirefskii, Hoffm., eine merkwiirdige 
Oystideen-Art. ; Bull. Mosc. lii. 1, pp. 301-304, pi. iv. C. Wachsmutii, 
Notes on the internal and external structure of palaeozoic Crinoids ; Am. 
J. Sci. (3) xiv. pp. 115-127, 181-191 [contains important information on 
the organization of palaeozoic Crinoids, but wanting further exposition 
and illustration. “ Palceocrinoidea ” is proposed as a sub-order, compris- 
ing all true Crinoids from palaeolithic strata, characterized through the 
closed vault of the calyx, covered by solid plates, without any external 
mouth, the true mouth being internal, communicating through sub- 
teguminal ducts with the brachial ambulacra]. Id. & F. Springer, Revi- 
sion of the genus Belemnocrinus ; op. cit. xiii. pp. 253-260. 
