522 



DR F. A. BATHER. 



F. INDEX. 



Name of Authors are in capitals, thus ....... Barrande 



Names of Geological formations or ages are in Roman type, with an initial capital, thus . Ashgillian 

 Names of places likewise, thus . . . . . . . . Cynwyd 



Names of larger Systematic groups likewise, thus ...... Cheirocrinidae 



Terms, referred to as such, are in Roman type, with a small initial, and between quote- 

 marks, thus .......... "anal" 



Structures or subjects dealt with are in Roman type, with a small initial, thus . . evolution 



Names of genera are in italics, with an initial capital, thus ..... Dendrocystis 



Names of species are indexed under the trivial name (in italics and never with an initial 



capital) followed by the generic name, thus ..... sedgwicTci, Dendrocystis 



The trivial names of species are also entered in an alphabetical list following the name of 

 each genus with which they have been associated. There is no attempt to indicate 

 which association is considered correct. 

 Fragments of which the species is indeterminable are indexed under the name of the 



genus to wliich they are referred, thus ...... Pleurocystis sp. 



Under all entries of Systematic names, the number of the section in which the Genus, or 

 Species, or Specimen, is more particularly described or discussed, is printed in 

 italics, thus ......... anglica, Pleurocystis, Jfib 



All numbers refer to Sections, not to pages, except the references to Plates and Figures 

 (PL iv. f. 54), and text-figures (tf. 22). 



abscondita, Gystidea, 26. 

 Acanthdlepis, 309 : jamesi. 

 adaptation, 579. 



to shallow water, 613. 



versus orthogenesis, 580. 



adbrachial plates, Dendrocystis, 61 ; D. barrandei, 



99; D. scotica, 136; D. sedgwicki, 117. 

 agnostiformis, Agnostus, 6. 

 Agnostus : agnostiformis. 

 Allen, H. A., 12, 444, 448, 615. 

 alter, Cheirocrinus, 292, 298, 302, 307, 308, 334, 



564. 



Homocystites, 290, 307. 



Ami, H. M., 405, 431, 615. 



Amphoridea, 1, 10, 13, 14, 17, 576. 



Amyydalocystis, 37. 



"anal aperture," 24. 



anal plates, Pleurocystis, 382. 



anal respiration, 227, 238, 556, 590, 605. 



" anal " side, 45. 



anatiformis, Cheirocrinus, 307, 308. 



Echinoencrinites, 307. 



anatomy of Gystidea, 569-575. 



anceps, Dicellograptus, 6, 7. 



Angelin, N. p., 286, 615. 



anglica, Pleurocystis, 368, 377, 378, 380, 381, 383, 



390, 392, 458, 464, 466, 500, 534, 551, 552, 



553, 577, PI. V. fl". 60-62, tf. 70, 76-78. 

 angulatus, Cheirocrinus, 300, 301, 307, 308. 

 Anomalocystidae, 14, 16, 18, 20, 26, 29, 32, 260, 



361. 576. 



Anomalocystites, 26, 355 : bohemicus, ensifer 



pyramidalis. 

 Anomocystida, 363. 

 antanal lobe, Dendrocystis, 583. 

 "antanal" side, 45. 

 antibrachial lobe, 46. 



process, 583; in Dendrocystis scotica, 140. 



" antibrachial " side, 45. 



anticostensis, Pleurocystis, 390, 432, ^.SS, 551, 552, 



577. 

 Anticosti, 434, 565. 

 anticostiensis, see anticostensis. 

 " anus," 24, see vent. 

 Apiocystinae, 269, 275. 

 Apiocystites, 269, 275. 

 appendage, Dendrocystis, 63 ; D. barrandei, 100 ; 



D. sedgwicki, 118; D. scotica, 137. 

 Arachnocystis, 68, 69, 72. 



Archetype of Glyptocystidea, 267, 270, tf. 36, 37. 

 Ardmillan, 4. 



series, 4. 



Ardwell group, 4. 



Aristocystis, stem, 589. 



Arkansas, 566. 



arms, see brachioles. 



Ashgillian series, 7, 467, 565. 



Asteroblastus, 229. 



atavus, Cheirocrinus, 301, 307, 308, 334, 



601. 

 Ateleocystis, 26, 358. 

 sp., 449. 



