6 Echin. 
XIV. 
ECHINODERMA. 
sphaeridia (p. 1041), spicules in podia (p. 1043), main skeleton 
(p. 1043), endoskeleton of Clypeastroidea (p. 1066), masticatory 
apparatus (p. 1067) ; Hamann (119). — Systematic value of 
variation in number of genitals in apical system of Spatan- 
gulae ; Checchia (40 & 41), see also i, c, 12 ; Lambert. —Anterior 
ambulacral groove in Micraster , its gradual modifications, peri- 
petalous fasciole not fixed, therefore neither are of systematic 
value ; Lambert (163) p. 126. 
6‘. Hydrocoel and associated cavities: — General account; 
Hamann (119) pp. 1086-1108. 
7. Coelom and other Body-cavities:—General account (pp. 
(1108-1114), contents (pp. 1131-1133), hyponeural canals 
(p. 1133); Hamann (119). 
8. Digestive System- General account; Hamann (119) pp. 
1114—1121. 
9. Nervous System:—General account (pp. 1077—1086), sense- 
organs (p. 1083), pedicellariae and sphaeridia (v. sub c, 5 ); 
Hamann (119). 
10. Mesodermal Tissues (exc. skeletal):—Muscles and ligaments 
of jaws (p. 1070), muscles of body-wall (p. 1072), lacunar 
blood-system (pp. 1121-1126), its contents (pp. 1131-1133); 
Hamann (119). 
11. Axial organ or Ovoid gland :—General account, structure 
and functions ; Hamann (119) pp. 1126-1131. 
12. Generative System :—General account ; Hamann (119) pp. 
1133-1138.—Atrophy of a genital pore in Micraster is “ un 
caractere de valeur relative,” i.e. individual not generic; 
Lambert (163) p. 124: see also i, c. 5 ; Checchia. 
d. ASTEROIDEA. 
1. General Account:—with special reference to fossils ; Woods 
(303) pp. 101-106.—Popular, of fossils ; Fritel (87).—Minute 
anatomy of Astropecten , with some details from Echinaster , 
original figures ; Schneider (255) pp. 643-661. 
2-11. Vacant. 
12. Generative System:—Ovaries of Cnbrella ; MaSTERMAn 
( 195) p. 373. 
e. OPHIUROIDEA. 
1 . General Account:—with special reference to fossils ; Woods 
( 303) pp. 106-109. — Popular, of fossils ; Fritel (87). 
f. CRT NOIDEA. 
1. General Account:—with special reference to fossils; Woods 
(303) pp. 130-140.—Popular, of “ Crino'ides articules ”; Fritel 
(86).—Minute anatomy of Antedon, original figures ; pp. 661- 
665 ; Schneider (255). 
2, 3 , A Vacant. 
5. Skeleton :—pore-rhombs in Porocr. (p. 1093), Basalia of 
“ Comatulidae,” Uintacr ., Marsupites , Atelecr. &c. (p. 1083), 
An alia, reason of their elimination from the cup, tlieir atavistic- 
occurrence in Thaumatocr. and Hexacr. (p. 1082), Madreporite 
in Cupressocr. (p. 1102), Oralia, their preservation in certain 
genera (p. 1081); Jaekel (134).—Tegmen, subvective groove 
carried on a membrane from 4th brachial to orals, above level 
of tegmen, in Gephyrocr. ; Koehler & Bather (156) p. 74. 
Arms in Melocrinidae , Taxocrinidae , Heterocrinidae, Cu¬ 
pressocr., Ilybocr.; Jaekel (134).—Covering-plates of arms in 
an Actinometra ; Springer (265). 
