LIST OF PUBLICATIONS, SUBJECT-INDEX. JEJch. 9 
63. Waciismuth, 0., & Springer, F. Crotalocrinus : its Structure and 
Zoological Position. P. Ac. Philad. 1888, pt. 3, pp. 364-390, pis. xix 
& xx. 
Grotalocrinus and Enallocrinus are to be included in the same family, 
Crotalocrfoiidce , which is connected through Marsupiocrinus with the other 
Camarata. Diagnoses of Crolalocrinidee and its component genera are 
given. 
64. . Discovery of the ventral surface of Taxocrinus and Ilaplo- 
crinus , and consequent modifications in the classification of the 
Crinoidea. T. c. pp. 337-363, pi. xviii. 
llaplocrinus possesses no “ central plate.’’ Anus lies within upper 
angle of triangular depression on the posterior plate, and is sometimes 
closed by numerous plates. The apparent “central” of many Platy- 
crinidce and Actinocrinidce is really the posterior oral thrust inwards by 
anal structures. The names Paheocrinoidea and Neocrinoidea must be 
laid aside. A new classification is suggested. A diagnosis is given of 
the Ichthjocrinklai . 
II. SUBJECT-INDEX 
TO LIST OF PUBLICATIONS. 
Distribution. 
Throndhjems fjord, Storm. 
‘ Challenger’ Stations, Carpenter 
(14). 
Azores, Barrois, Tii. 
Indian Archipelago, Brock, Lud- 
wig (41). 
Ceylon, Sarasin (53, 54, 55). 
Bengal Sea, Bell (7). 
Cape Horn, Perrier. 
Batavia, Sluiter. 
New Brunswick, Ganong. 
Amboina, Ludwig (41). 
Caribbean Sea, Loyi^n, S. (40). 
Bermuda, Heilprin. 
Morphology. 
General Anatomy. 
Holothuroidea , v. sub. Sluiter, Bell (9), Heilprin, IIiiirouard, 
Ludwig (41). 
Echinoidea, v. sub. Ives, Bell (9), Lov^n (40), Doderlein, Duncan 
(24), Loven (39). 
Crinoidea , Hamann, Bell (9), Carpenter (14). 
Ophiuroidca , Bell (9), DOderlein, Ludwig (42), Bell (8, 6), CuiSnot. 
Asteroidea , DOderlein, Storm, Perrier. 
Skeletal System. 
Hobthuroidea , Semon. Asteroidea , Fewkes. 
Crinoidea , Carpenter (14). 
Nervous System. 
Holothuroidea , Semon. Asteroidea , Jickeli. 
Crinoidea , Hamann. 
