56 tick. 
XIV. ECHINODERMA. 
S. lutea , Great Barrier Reef, Kent (135) p. 235, n. Bp. 
[ Synallactes, n. g. otAspidochirote , with type S. aenigma , nomen nudum, and 
S. alexandri , nomen nudum; Ludwig, Zool. Anz. xvi, p. 178. 
Synallactincv , n. subfam., for Synallactes, Pseudostichopus, Paelopatides, 
Mesites (Ludw.), and Meseres ; op. cit. p. 179. 
Synapta , Each.; Bell (16) p. 32. S. abyssicola, Theel, pacifica , n. var., E. 
Pacific ; Ludwig (156) p. 186. S. besseli , Jaeg., characters of living 
animal ; Kent (135) p. 241 : changing of shape ; Studer (256) 
pp. 234, 240, & 256. S. buski , McIntosh, Bell (16) p. 34. S. digi- 
tata , Mont. ; loc. cit., Steindaciiner (254) p. 446, Studer 
( 256) p. 30 : parasitic Gregarine and Copepod ; Cuenot (60) : 
alimentary canal ; Frenzel (88) p. 85 : off coast of Spain, 248 
metres, variation in spicules figured; Marenzeller (164) p. 17 : 
with Nematode and Ctenodrilus as inquilines; Monticelli (193) 
pp. 248-250. S. inhaerens , O. F. Mull. ; Bell (16) p. 33, Petersen 
( 216) p. 38, Studer (256) p. 30 : ovum described ; Crety (52) : 
parasitic Gregarines, Ciliate Infusorian, Trematode, Rotifer, Tardi- 
grade, and Copepod ; Cuenot (60): oogenesis; Cuenot (57): with 
Nematode and Ctenodrilus as inquilines ; Monticelli (193) pp. 248- 
250. S. kefersteini , Sol., parasitic Copepod ; Voigt (267). S. reci- 
jiroquans, Forskal, redescribed ; Herouard (121) p. 137. S. reti- 
culata , Semp., on stem of Gorgonids; Studer (256) p. 192. S. sp., 
habitat mangrove roots, coral slabs, sand ; Field (82) p. 83. 
Thyone , Semper; Bell (16) p. 41. T. castanea, Lamp. ; Studer (256) 
p. 192 ; T. elegans , Norm., T. Jlexus, Hodge ; Bell (16) p. 43. T. 
fusus, O. F. Mull. ; Bell (16) p. 42. T. inermis, Hell., Azores, 130- 
180 metres, includes T. aurantiaca , Costa, and T. elegans , Norm. ; 
Marenzeller (164) p. 17. T. mirabilis, Ludw. ; Studer (256) 
p. 192. T. niuricuta, Stud., distribution; op. cit. p. 163. T. port- 
locki, Forbes, see Cucumariu montagui. T. raphanus, Dub. & Kor.; 
Bell (16) p. 42. T. recurvata , Theel, distribution, p. 163, T.sacellus, 
Selenka, p. 192, T. theeli, Lamp., p. 192 ; Studer (256). 
Thyonidium commune, Forbes ; Petersen (216) p. 39. T. hyalinum, 
Forbes ; Petersen (216) p. 38. 
Trochostoma ; Agassiz (3) pp. 79, 80, & 83. T. granulatum and T. inter- 
medium, nomina nuda ; Ludwig (156) p. 185. T. violaceum, Stud., 
distribution ; Studer (256) p. 163. 
(0.) — ECHINOIDEA. 
f Acrocidaris nobilis, Agass. ; Aguilera (4) p. 18, Greppin (104) p. 99. 
Acrocladia mammillata, Lam., A. tvigonaria, Klein ; Studer (256) 
p. 248. 
f Acrosalenia : — A. banburiensis, Wright, A.minuta, Buckm., A.parva, 
Wright ; Woodward (276) p. 369. A. sp.; Fox-Strangways (87) 
ii, p. 144. 
Aerope\ Agassiz (3) p. 81. 
Amblypneustes grossularia, Stud. ; Studer (256) p. 267. 
