CYSTIDEA. (IV, G.) 
Echin. 131 
Caryocystis ; Haeckel (117) p. 397: redefined; Haeckel (118) p. 59. — 
C. alutacea , vide sub Hcliopirum. — 0. geometrica and C. granatum , vide 
sub Heliocrinum. — C. ovalis, vide sub Ileliopirum. — C. prominens, vide 
sub Heliocrinum. — C. tenuistriata , vide sub Hcliopirum. — C. testudi- 
naria , Buch et Auctt. [non Hisinger], redescribed; Haeckel (118) 
p. 59, pi. ii : made type of n. g. Amorphocystis ; Jaekel in Koken 
( 171) p. 411, footnote. 
C. angelini , based on Angelin, pi. xiii, figg. 4-9 [which represent the 
original specimen of Hisinger, to which the name testudinctrius is 
(quite erroneously) applied by all authors, Haeckel included ; angelini 
therefore becomes genotype: see Zool. Rec. 1893]; Haeckel (118) 
p. 59: n. sp. 
Chirocrinus , syn. of Glyptocystis ; Haeckel (117) p. 402. 
Cilrocystida , sub-fam. nov. of Palceocystida , for Echinosphcera , Citrocystv ?, 
and Paleeocystis ; Haeckel (118) p. 64. 
Citrocystis , n. g., with type Citrocystis citrus (olim Spkceronites) Hisinger; 
Haeckel (118) p. 68, pi. i. 
Comarocystida, sub-fam. nov. of Palceocystida ; Haeckel (118) p. 64. 
Comarocystis ; Haeckel (117) p. 397: redefined, and C. punctata re- 
doscribcd; Haeckel (118) p. 70, pi. i. 
Craterina , incl. Calix Rouault, redefined, and C. bohemica , inch G. cxcavata 
Barr., redescribcd; Haeckel (118) p. 54. 
Crinocystis chrysalis Hall, doubtfully referred to Paleeocystis ; Haeckel 
( 118) p. 69. 
Cryptocrinidce , defined, includes Cryptocr ., Ecliinocystis , Porocr ., Ilypocr . ; 
Zittel (356) p. 154, and Zittel-Eastman (357) p. 184. 
Cryptocrinus, redefined (p. 146), and C. cerasus , redescribed (p. 147); 
Haeckel (118). 
Crystallocystis Haeckel ( = “ Echinosphcera sensu strictissimo !”) ; Haeckel 
( 118) p. 66. [?n.g.] 
Cyathocystis, redefined, and C. plautince , redescr. ; Haeckel (118) p. 115. 
Cystidea concomitans , vide Stromatocystis. 
Cystoblastus, as ancestor of Blastoidea; Jaekel (141): redefined, and C. 
leuchtenbergii redescribed ; Haeckel (118) p. 130. 
Decampkora, nom. nov., hypothetical ancestor of hypothetical Protamphora ; 
Haeckel (118) p. 33. 
Dendrocystis\ Haeckel (117) p. 397: redefined (p. 54), and D. sedgwicki 
redescribed (p. 55, pi. ii); Haeckel (118). 
Deutocystis ; Haeckel (117) p. 397 : redefined, and D. modesta redescribed; 
Haeckel (118) p. 51, ph ii. 
Diploporita , criticised; Haeckel (118) p. 19. 
Discocystis , nom. nov. pro Echinodiscus Worthen & Miller non Agassiz ; 
Gregory (109) p. 131. — D. optatus is an Agelacrinid, and the genus is 
of doubtful validity ; Bather (31). 
Echinocystis ; Bather (31 ). — Ecliinocystis Hall non Wy v. -Thoms., redefined ; 
Haeckel (118) p. 146. — E. armata (olim Echinoencrinus) Forbes, made 
type of Echinocystis Hall [with which it is not congeneric, and already 
is type of Schizocystis Jaekel]; Haeckel (118) p. 146. 
Echinoencrinus , syn. of Glyptocystis ; Haeckel (117) p. 402. — E. baccatus , 
referred to Echinocystis ; Haeckel (118) p. 146. 
Echinosphcera ; Haeckel (117) p. 397: redefined; Haeckel (118) p. 66. — 
E. baltica and E. aranea, vide sub Heliocrinum. — E. auranlium; 
Jaekel (143) p. 389: redescribed; Haeckel (118) p. 67, ph i. 
Echinosphceritidce, defined, includes Echinosphcera , Arachnocystis , Caryco- 
cystis , Orocystis , Paleeocystis; Zittel (356) p. 154, and Zittel-Eastman 
( 357) p. 183. 
Edriocystis , nom. nov. pro Edrioaster; Haeckel (118) p. 133. — E. bigsbyi 
(olim Edrioaster), redescribed; Haeckel (118) p. 118, ph iii. 
