CYSTIDEA. (IV, G) 
Eel tin. 93 
cation (p. 65) into Diclioporita and Diploporita, followed by detailed 
and exhaustive monograph ; Jaekel (130). 
Edrioasteroidea, defined as Class, with Famm. Agelaciinidae, Cyatho- 
cystidae , Edrioasteridae ; Bather (22) p. 923. General principles of 
taxonomy of Thecoidea { —Edrioasteroidea ) and division into Theco- 
cystidce and Agelacrinidae ; Jaekel (130) p. 32. 
Acanthalepis jamesi M ‘Coy = 6' lyptocystis [i.e. Cheirocrinus ] cf. pennigera ; 
Reed (194) p. 762. 
Acanthocystis referred to Cladocrinoidea ; Jaekel (130) p. 147. 
Agelacrinidce , redefined, incl. Stromatocystis, Cystaster , Hemicystis, Agelacr., 
Strept aster, Lepidodiscus, Haplocystis, Discocystis , and referred to 
Class Edrioasteroidea ; Bather (22) p. 923 : redefined and restr. to 
Hemicystis and Agelacrinus) Jaekel (130) p. 47. 
Agelacrinus (seu - ites ), rediagnosed, incl. Haplocystis, Lepidodiscus , 
Streptaster ; Jaekel (130) p. 49. B. sp. of Mourlon 1881, believed to 
be same as Protaster decheni ; Dewalque (73): =Dinocystis barroisi 
and not Protaster decheni ; Bather (23) p. 136. G. blairi (p. 51); 
G. cincinnatiensis (olim Lepidodiscus ), rediagnosed (p. 50, pi. ii); G. 
dichsoni , rediagnosed (p. 50, pi. ii) ; G. hamiltonensis, rediagnosed 
(p. 51); G. holbroohi (p. 50); G. lebouri, rediagnosed, probably incl. 
G. milleri Sharman & Xewton (p. 51, pi. i); G. pileus, rediagnosed 
(p. 50, nl. i, text-fig.); G. rhenanus (olim Haplocystis ), rediagnosed 
(p. 50, pi. iii); G. septembrachiatus, 7 rayed individual of G. cincin¬ 
natiensis (p. 50); G. squamosus , rediagnosed (p. 51); G. vorticellatus 
(olim Streptaster ), rediagnosed (p. 50): Jaekel (130). 
Allocystis {-ites), discussed, G. hammelli', Jaekel (130) p. 398. 
Amorphocystis, n. g. [but see Zool. Rec. 1897] (p. 337) with genotype 
G. buchi, n. sp. pro Caryocystis testudinarius Buch. non His., and 
G. esthonice, n. sp., 1 Ordovician drift, Esthland (p. 339); Jaekel (130). 
Amphoridea, redefined, incl. AHstocystidae, Dendrocystidae, Anomalo- 
cystidae\ Bather (22) p. 919. 
Anomalocystidae, redefined; Bather (22) p. 919. 
G nomalocystis cornutus “ probably a crustacean ” ; 'Whitfield & Hovey 
(254) p. 97. 
Apiocystinae, sub. fam. of Callocystidae, for Meelcocystis and Apiocystis ; 
Jaekel (130) p. 277. 
Apiocystis {-ites) Forbes 1848, name preferred to Lepocrinus Conrad, nom. 
nud. and Lepadocrinus Hall 1859, prioritatis causa [what about Mather 
1843?], rediagnosed (p. 279); G. angelini, n. sp., Silurian, Gotland 
(p. 282, pi. xiv); G. canadensis (p. 282); G. elegans, rediagnosed 
(p. 282); G. gebhardi, rediagnosed (p. 282, text-fig.); G. huronensis 
(p. 282); G. oblongus (olim Pseudocrinus), rediagnosed (p. 282); G. 
pentrematoides, rediagnosed (p. 282, pi. xv), G. tecumseth (p. 282): 
Jaekel (130). 
Aporita, redefined, incl. only Cryptocrinidce ; Bather (22) p. 920. 
Archegocystis, n. g. of Sphaeronidce with genotype Pyrocystis desideratus 
Barr., incl. also P. incertus Barr., P. patulus Barr, and Aristocystis 
bohemicus Barr., pi. xxv, fig. 15 [but Barrande names this Echino- 
sphaerites infaustus ]; Jaekel (130) p. 395, pi. iii. 
Aristocystidce, defined; Bather (22) p. 919: redefined in sense different 
from both Haeckel and Bather, incl. Aristocystis and Trematocystis, 
morphology discussed; Jaekel (130) p. 407. 
Aristocystis {-ites), redefined and discussed (p. 411); G. bohemicus, re¬ 
diagnosed, inch G.? grandiscutum and G.? rudis (p. 412, pi. iii); G. 
desideratus, G. idealis, A. potens, and 4. sculptus, are probably Codia- 
cystis (p. 412); G. subcylindricus var. bohemicus is a Codiacystis 
(p. 412): Jaekel (130). 
Ascocystis, see rv, f. 
1899. [Vol. xxxvi.] 
E 24 
