50 Echin, 
XIV. ECHINODERMA. 
[ 1904 ] 
Semper ia drumondi Herouard ; Pace (205). 
Stichopus ; Delage (54) p. 322, figg. S. chloronotus ; Gardiner (95) p. 339. 
S. regalis ; Bertrand (27): Dubois (72) ; Henri (116) p. 19. S. tre- 
mulus ; Kiaer (140). 
Synallaetes descr. ; Delage (54) p. 323. S. moseleyi , not a Bathyplotes ; 
Perrier (212) p. 13. 
Synallactinae, defined with list of genera ; Delage (54) p. 323. 
Synapta descr.; Delage (54) p. 332, figg. : auricularia ; Lo Bianco (154) 
p. 55, pi. xxxiv. S. digitata ; Mar. Biol. Ass. (184) p. 206. S. inhaerens ; 
1. c. : Malard (180) : descr., range ; Clark (38) p. 571, pis. xi, xiv. 
S. cf. ooplax; Gardiner (95) p. 338. S. roseola , descr., range; Clark 
(38) p. 571, pis. xi, xiv. 'S. vivipara ; Ludwig (164) p. 689. 
Synaptinae Subfam. ; Delage (54) p. 337. 
Theelia ; Delage (54) p. 320. 
Thyone ; Delage (54) p. 320, figg. T. briareus , descr., range, habits ; 
Clark (38) p. 567, pis. xi, xiii. T. fusus; Malard (179) p. 195: Mar. 
Biol. Ass. (184) p. 206. T. lechleri , sclerites ; Perrier (212) p. 15. 
T. raphanus ; Malard (179) p. 195. T. rubra ; Ludwig (164) p. 689. 
T. scabra, descr., range ; Clark (38) p. 568, pis. xi, xiii. T. spectabilis, 
calcareous ring; Perrier (212) p. 15. T. unisemita , descr., range; 
Clark (38) p. 569, pis. xi, xii. 
Thionepsolus [sic. err. pro Thyonepsolus]\ Delage (54) p. 320. 
Trochoderma ; Delage (54) p. 337. T. elegans\ Michailoyskij (191). 
Trochodota ; Delage (54) p. 337. T. purpurea ; Perrier (212) p. 17. 
Trochostoina ; Delage (54) p. 332, fig. T. boreale ; Michailovskij (192) 
p. 161. T. oolitic urn, inch T. boreale but not T. arcticum or T. turgidum, 
descr., range ; Clark (38) p. 570, pis. xi, xiii. 
Ypsilothuria ; Delage (54) p. 321. 
(C). — ECHINOIDEA. 
Classification of Ech., phylogenetic, causes of change ; DouvillIs (66) p. 72. 
Echinidia divided into Subclass 1. Regulariae with Orders Palechinida , 
Echinothurida , Cidarida , & Diademida , 2. Irregulariae with Orders 
Holectvpida , Clypeastrida , & Spatangida ; Delage (54). Diagnoses 
of Orders, Families, and Genera, with lists of spp. and distrib., con- 
tinuing Regidaria from Temnopleuridae , and all Irregidaria ; Meissner 
in Ham ann (112) [for scheme of classification down to Sub-famm. see 
Introduction to last year’s Record, p. 6]. Echinoidea Regularia , 
classifications of Pomel, Duncan, Lambert, Gregory, and Bell discussed, 
following proposed : Order I Entobranckiata , with one Suborder, 
Cidaroida , Famm. Archaeocidaridae da Cidaridae ; Order II, Ecto- 
branchiata with Suborders 1, Streptosomata, Famm. Lepidocentridae , 
Echinothuridae , 2, Stereosomata , Tribus i Diademina , Famm. Aspido- 
diade?nat-, Diadernat-, Pseudodiademat -, Micropyg-, Pedin-, Hemicidar- 
idae , Tribus ii Salenina , Fam. Salenidae , Tribus iii, Phymosomina , 
Famm. Arbaci-, Phymosomat -, 1 Stomechin-idae, Tribus iv, Echinina , 
Famm. Stomopneust -, Temnopleur -, Echin-, Toxopneust -, Echinometr- 
idae ; Mortensen (195) p. 47 [for smaller divisions see under Fam. 
names ; N.B. that Mortensen’s Tribus are Superfamilies, whereas 
Lambert’s are Sub-subfamilies]. Palaeozoic Ech. classified and revised, 
see further sub Palaeechinoidea ; Klem (142). Key to spp. of Ech. in 
East Indian Archipelago, see list hi, a, iii ; de Meijere (57) p. 220- 
237. 
Taxonomic value of the following characters : — Pedicellariae, Mortensen’s 
classification discussed by de Meijere (57) p. 248, ridiculed by 
