CRINOLDEA. RZ 
Brancy B. CALICULATA. 
Caliculata, Bell, Ann. § Mag. viii. (1891) p. 218. 
Kchinoderma in which part at least of the skeleton is formed by 
a System of plates set alternately along and between the rays in the 
aboral region, and round a single central plate ; it either forms a 
complete functional calyx, or is more or less reduced. 
Stage 6. Actinogonidiata. 
Actinogonidiata, Bell, Ann. § Mag. viii. (1891) p. 218. 
Caliculate Echinoderma in which the gonads are radial in posi- 
tion or have undergone fusion and become interradial. 
Subbranch I. STATOZOA. 
Statozoa, zd. ¢. c. p. 214. 
Actinogonidiate caliculate Echinoderma in which the body, whose 
oral surface looks upward, is temporarily or permanently fixed; 
the podia have a respiratory function only, and the anus opens 
on the oral surface. They may or may not have or have had a 
stalk; the former are in the pelmatozoic, the latter in the apelma- 
tozoic grade. 
Class VIII. CRINOIDEA. 
Crinoidea, Miller, Nat. Hist. Crin. (1821) p.7; Gray, Syn. B. M. 
42nd ed. (1840) p. 63; id. Brit. Rad. (1842) p.27: Norman, Ann. § 
Mag. xv. (1865) p. 100; Carpenter, Chall. Rep. Crin. 1884, p. 187 ; 
Bell, Ann. § Mag. viii. (1891) p. 215. 
Stilasterite, Goldfuss, Pet. Germ. i. (1829) p. 161. 
Asterencrinea, de Bl. Dict. Sci. Nat. 1x. (1830) p. 228. 
Asterencrinidea, 2d. Act. (1854) p. 247. 
Crinoides (pars), 4g. Mém. Soc. Neuchdt. i. (1836) p. 193; td. Ann. 
Ser. Nat, vii. (1837) p. 288; Duj. § Hup. Ech. (1862) p. 35. 
Crinoidew, Forbes, Mem. Wern. Soe. viii. (1839) p. 128 ; td. Brit. Starf. 
(1840) p. xiv. 
Pinnigrada, ed. Brit. Starf. (1840) p. xiv. 
Pinnastella Crinoidea, Austin, Ann. § Mag. x. (1842) p. 108. 
Actinoidea, F. Roemer, Leth. Geog. (1852-4) i. 2. p. 224, 
Crinoidea brachiata, Burmeister, Zoonom. Brief. i. (1856) p, 243. 
Brachiata, Haeckel, Gen. Morph. (1866) p. |xviii. 
Kucrinoidea, Zittel, Hdbuch. Pal. (1879) p. 3825. 
Caliculate, actinogonidial, statozoic Echinodermata, provided with 
branching articulated arms. In a number of forms the stalked 
condition is larval only or it is altogether lost: the power of loco- 
motion is often re-acquired. A highly specialized aboral nervous 
system. Gonads developed in the arms. Five or more water-pores 
establish a communication between the ceelom and the exterior. 
C 
