ophiuroidea. iv> e. 
j Ech. 49 
(E.) — OPHIUROIDEA. 
Classification into Suborders, Families, and Genera, with special refer- 
ence to fossils; Sturtz (115) pp. 16-32. 
fAcroura, validity of genus, and list of species, discussed, A. coronce- 
formis , Muschelkalk, disctissed and described ; Andreae (4) p. 6. 
Amphiura chiajei ; Marenzeller (75) p. 12; Meissner & Collin (80) 
p. 334. A , elegans ; op, cit ., p. 335. A, filiformis ; op. cz7., p. 334 ; 
Marenzeller (75) p. 12. A. squamata, synonymy; Koehler (56) 
p. 413 ; breeding season; Garstang (36) p. 228 ; at Cette, parasitic 
castration by Orthouectidte ; Koehler (55) p. 4. A. sundevallii ; 
Pfeffer (93) pp. 107 & 121. 
A. rosea , Wellington Harbour, 10-15 fms., evisceration of disc ; Farqu- 
iiar (30) Tr. N. Zealand Inst, xxvi, p. 109, n. sp. 
Astrophyton arboresccns ; Koehler (56) p. 416 ; anatomical details; 
Capri A (18). A, clavatum ; Loriol (64) p. 56. A . eucnemis ; 
Pfeffer (93) pp. 108 & 121. 
Asteroschema rousscaui ; redescribed from Mauritius ; Loriol (64) p. 55. 
A, clavigera , George’s Bank, 956 fms., on a Paramuricea , variations ; 
Verrill (125) P; U. S. Mus. xvii, p. 295, n. sp. 
fBundenbackia beneckei and B. grandis compared ; Sturtz (115) pp. 21 
& 22. 
Eucladia, discussed ; Sturtz (115) p. 30. 
Eugaster , discussed ; StOrtz (115) p. 20. 
Furcaster, discussed; Sturtz (115) p. 25. 
f Ilelianthaster, discussed (p, 30), II, rbenanus^ description corrected, 
new figure (p. 12) ; Sturtz (115). 
Ony chaster, discussed ; Sturtz (115) p. 30. 
Ophiacantha bidentata ; Pfeffer (93) pp. 108 & 121, and (94) p. 99. 
O. setosa ; Marenzeller (75) p. 12 ; Koehler (56) p. 414. 
Ophiactis savignyi , O. sexradiata , and O. virens ; Russo (104) p. 161. 
Ophiarachna armata , Trosch., referred to Pectinura ; Loriol (64) p. 13. 
0. mauritiensis (p. 32), and O. robtllardi (p. 31), Mauritius; Loriol (64) 
Mem. Soc. Geneve, xxxii (1) : n. spp. 
Ophiarthrum lymani , Mauritius ; op. cit., p. 34, n. sp. 
Ophiocoma alternans , Martens, not young but var. of 0. scolopendrina ; 
Loriol (64) p. 25i O. brevtpes , redescribed from Mauritius, includes 
O. iiisularia and O. ternispina ; l. c. O. crassispina , and O. echinata ; 
Russo (104) p. 161. O. erinaceus, distinguished from O. scolopen- 
drina (p. 21), O. lineolata (p. 28), O. scolopendrina , discussed (p. 23), 
O. valentine, redescribed from Mauritius (p. 29); Loriol (64). 
Ophioconis forbesi ; Koehler (56) p. 412. 
Ophiocrene , n. g., with type 0. cenigma , Macclesfield Bank, 45 fms., an 
Astrophytoid with calycinal system ; Bell (7) P. Zool. Soc. London, 
1894, p. 408, n. sp. 
Ophiocten abyssicolum [sic], redescribed and figured ; Marenzeller 
( 75) p. 11. O. sericeum ; Pfeffer (93) pp. 106 & 121, and (94) p. 99. 
1894. [vol. xxxr.] f 28 
