32 Ecli, 
XIV. ECHINODERMA. 
and (215) pp. 243-310 ; Shipley (243). — Popular account of general 
characters and external morphology ; Perrier (214). 
(2) Bilateral and radiate symmetry Perrier (213) pp. 40, 323, 780. 
— Relation of radiate structure to the bilateral larva ; Seeliger (241) 
p. 408. — Derivation of radiate structure from a primitive bilateral 
form; Buetsciili (27). — Orientation of Echinoderma ; Agassiz (2) 
pp. 93-95.— Metamerism and paramerism (p. 38), varying number of rays 
among Echinoderms (pp. GO & 781), coalescence of parameres in certain 
Asteroids and in Echinoids (p. 60) ; Perrier (213). 
(3) Homologies of the classes of Echinoderma discussed; Agassiz (2) 
pp. 84-95. 
(4) Skeleton formation ; Dreyer (65 & 66). — Formation of stereom ; 
Ciiun (34). 
(5) Apical system of the various classes discussed and compared ; 
Agassiz (2) pp. 65-83. — Homologies of calycinal plates ; Janet (128). 
(6) Water- vascular system, the term objected to; Kennel (132) p. 73. 
— Ambulacral system generally ; Perrier (213) pp. 79 & 801. 
(7) Blood, summary of researches and chemical analyses ; Griffiths 
( 109) pp. 117-119. — Blood- vascular system ; Perrier (213) pp. 81 & 813. 
— The Hydrocoel and its meaning ; Seeliger (241) p. 397. — Axial sinus 
and other sinuses ; Perrier, (213) p. 810. 
(8) Digestive system generally ; Perrier (213) pp. 79 & 800. 
(9) Nervous system (p. 819), sense organs (p. 822) ; Perrier (213). 
(10) Pedicellaria ; Perrier (213) p. 823. 
(11) Histology of body-wall; Perrier (213) p.799. 
(12) Generative organs ; Perrier (213) p. 826. 
(b) HOLOTHUROIDEA : — (1) Cephalization ; Perrier (213) 
pp. 59 & 323. 
(2) Spicules of Cucuniaria montayui , C. hoelliheri described ; Norman 
(204). 
(3) Polian vesicles ; Herouard (121) p. 125. 
(4) Coecum of Benthodytes sanguinolenta ; Ludwig (156) p. 180. — 
Cuvierian organs ; Herouard (121) p. 125 ; Perrier (213) p. 826. 
(5) Description of ovum of Holothuria and Synapta ; Crety(52). 
(c) ECHIN01DEA (1) General and popular account; Lindsay(149). 
(2) Skeleton ; Perrier (213) p. 795. — Ambulacra, plates and pores, 
with definition of terms uni- t hi-, tri-geminate , uni-, hi -, tri-sociate, and 
toxogeminate ; Lambert (145) pp. 50-54. — The plastron of the Spatangid 
test, elaborate comparative study ; Lambert (146). — Buccal plates of 
Pyrina flava ; Cotteau (39) p. 539. — Anal system of Discoidea , Spatan- 
gouls, Clypeastroids, &c.; Agassiz (2) p. 83. — Perignathic girdle, Discoidea 
and Echinoconus ; Duncan & Sladen (71). 
(3) Pedicellariai of Echinus alexandri i 3 forms ; Danielssen (62) p. 2. 
(4) Poriferous plates in Echinopsis elegans ; Cotteau (44) p. 579. 
— Genital pores ; Janet (128). — Madreporite ; Lambert (145) p. 83; 
Janet (128). 
