38 Echin. 
XIV. ECHINODERMA. 
Stichopus towns and S. pattens ; Koehler (164) p. 36. — Calcareous ring 
of Caudina arenata (p. 155); calcareous bodies and their development in 
Caudina arenata and var. armata (pp. 133-135); Gerould (100). 
(6) Water- vascular system and its contents (pp. 157-167), respiratory 
trees (p. 154), of Caudina arenata ; Gerould (100). 
(7) Pseudha3mal vessels of Holothurians called ‘ hyponeural canals,’ 
these = ‘ radial water- vessels 5 of Hamann in Synapta (p. 141); haemal 
lacuna) in Caudina ai'enata (p. 168); Gerould (100). — Coelomic fluid with 
brownish-red (? haemoglobin) and colourless corpuscles, Caudina coriacea ; 
Dendy (63) p. 31. — Ciliated funnels occur in two forms in Chirodota 
stuhlmanni , and probably in C. rigida , as previously noted in Synapta 
digitata ; Lampert (181) p. 70. 
(8) Digestive system of Caudina arenata fully described (pp. 147-149) ; 
its histology (pp. 149-154); with notes on Cucumaria frondosa (p. 148); 
Gerould (100). — Cuvierian organs: — in Ilolothuria forskali, but not in 
II. poli or II . tubulosa ; Koehler (170). — Of Ilolothuria poli (vel nigra), 
histology, supposed vacuoles are epithelial cells; Barthels (18). 
(9) Nervous system of Caudina arenata fully described, with neural 
canals; Gerould (100) pp. 137-146. — Papillae in Stichopus mollis ; White- 
legge (347). 
(10) Body-wall, connective tissue, and muscles of Caudina arenata ; 
Gerould (100) pp. 129-137. — Muscles of Ilolothuria tubulosa and Sti- 
chopus regalis, figured; Iwanzoff (138). 
(12) Generative organs of Caudina arenata fully described, with notes 
on Cucumaria frondosa, Thyone briareus, and Synapta girardi ; Gerould 
(100) pp. 169-179. 
(c) ECH IN 0 IDE A . 
(1) General accounts: — with ref. to fossils in British Museum; 
Gregory (112) p. 90. — With tabular synopsis of chief Neozoic genera; 
Koken (171) p. 253. — With special reference to fossils; Zittel (356) and 
Zittel-Eastman (357). 
(2) Term ‘ lissactinic’ should be ‘ lysactinic’; Bell (34) and Gregory 
(110) p. 1001 foot-note. 
(4) Stereom formation and absorption in pluteus of Echinus milians ; 
Th£el (325) p. 55. 
(5) Skeleton: — general discussion; IIaeokel (116) p. 475. — Apical 
system, — classificatory value discussed, growth-stages in Hemicidaris cre- 
nularis as example; Lampert (179) p. 491 and figg. [numbers 2 & 3 
transposed] : perhaps homologous with anal pyramid of Echinocystis and 
Cystidea\ Gregory (109) p. 132. — Form of individual apical plates in 
spp. of Salenia from Cretaceous of S. W. France; Arnaud (15). — Genital 
and ocular plates of Melonites multiporus ; Jackson & Jaggar (140) p. 155. 
— Interambulacrals and ambulacrals, esp. imbrication, spines, buccal area, 
jaws, of Archceocidaris described and discussed; Tornquist (326). — 
Ambulacral and interambulacral plates of Melonites multiporus ; Jackson 
& Jaggar (140) p. 138. — Ambulacra, classificatory value in Echino- 
metridce discussed; Lambert (179) p. 488. — Ambulacral plates in Echino- 
thuridEe, “ klasma-plates ” new term; Gregory (108) p. 115. — Pyramids 
of Echinoid jaw perhaps arose as modified ambulacrals; Gregory (109) 
p. 132. — Plastron and its growth -stages discussed, passim, and specially 
for JEropidce (p. 323); “ Petalodesmic, Cyclodesmic, and Cyclopetalo- 
desmic,” terms relating to fasciole (p. 324); Lambert (178). — Fossettes 
of Echinoidea Endocyclica , classificatory value discussed (p. 492); Tu- 
bercles, classificatory value in Echinometridce discussed (p. 488) ; Lambert 
(179). — Spines of Melonites multiporus ; Jackson & Jaggar (140) p. 136. 
(6) Ambulacral system: — Haeckel (116) p. 480. — Stewart’s organs 
