OPHIUROIDEA. (IV, E.) Echw. 89 
Astroporpa , defined ; Meissner in Hamann (146) p. 950. A. annulata ; 
Clark (66) p. 251. 
Astroschema , defined, list of spp.; Meissner in Hamann (146) p. 949. 
A. oligactes ; Clark (66) p. 251. 
Astroschem\at\inae , n. subfam. of Astrophytidae ; Meissner in Hamann 
( 146) p. 949. 
Astrotoma , defined ; op. cit. p. 951. 
Brachyophiurae , defined as sub-order of Zygophiurae ; op. cit. p. 915. 
Cladophiurae , defined ; op. cit. p. 949. 
Euryale , defined ; op. cit. p. 955. 
Euryalinae , defined ; op. cit. p. 954. 
Gorgonocephalus , defined, list of spp.; op. cit. p. 954. G. sp.; Knipo- 
vitsch (171). G. agassizii ; Koehler (173) p. 102: Whiteaves (320) 
p. 62. G. eucnemis ; op. cit. p. 61. G. lamarcki ; op. cit. p. 62. 
Gymnolophus , defined ; Meissner in Hamann (146) p. 945. 
Gymnopliiura , defined ; op. cit. p. 926. 
Hemieuryale, defined, incl. Ophioplus Yerrill; op. cit. p. 948. 
Hemipholis , defined, list of spp.; op. cit. p. 928. 
Luetkenia Brock, defined ; op. cit. p. 944. 
Nectophiurae , defined as sub-order of Zygophiurae ; op. cit. p. 927. 
Neoplax , defined ; op. cit. p. 946. 
Oligodontida , n. sect, of Nectophiurae , to contain Amphiuridae , Ophio- 
helidae , and Ophiacanthidae ; op. cit. p. 927. 
Ophiacantlia , defined, list of spp. ; op. cit. p. 935. 0. abyssicola ; 
Koehler (173) p. 102. 0. anomala ; Whiteaves (320) p. 60. 0. 
( Ophiectodia) antarctica Koebl. 1900, Antarctic ; Koehler (172) p. 
34, pi. iv. 0. hidentata ; Clark (66) p. 249: Knipovitsch (171): 
Koehler (173) p. 102 : Rankin (252) p. 179 : Whiteaves (320) 
p. 60. 0. granidifera ; op. cit. p. 61. 0. ophiactoides n. sp., 
Porto Rico, 10 fms.; Clark (66) p. 249, pi. xv. 0. ( Ophiolimna) 
polaris Koebl. 1900, Antarctic; Koehler (172) p. 32, pi. iii. 0. 
spectabilis (p. 60), 0. varispina (p. 61); Whiteaves (320). 
Ophiacanthidae , defined ; Meissner in Hamann (146) p. 935. 
Ophiactis, defined, list of spp.; op. cit. p. 929. 0. balli , and 0. corallicola ; 
Koehler (173) p. 102. 0. krebsii , 0. longibrachia n. sp., Vieques 
Id., W. Indies, 6 fms., resembles 0. dispar (pi. xiv), 0. loricata ; 
Clark (66) p. 246. 0. mulleri , 6-rayed, coloured like 0. savignyi; 
Clark (64) p. 340. 
Ophialcaea glahra n. sp., Porto Rico, but differs from normal Ophialcctea 
in covering of disc ; Clark (66) p. 249, pi. xv. 
Opliiambyx , defined ; Meissner in Hamann (146) p. 927. 
Ophiarachna , defined, list of spp. ; op. cit. p. 939. 0. incrassata, mouth- 
parts ; Zur Strassen (338). 
Ophiarthrum , defined, list of spp.; Meissner in Hamann (146) p. 940. 
Ophiectodia , v. sub Ophiacantlia as sub-gen. 
Ophiernus , defined, list of spp.; Meissner in Hamann (146) p. 922. 
Ophioaethiops , defined ; op. cit. p. 945. 
Ophioblenna, defined ; op. cit. p. 936. 
Ophiobrachion , defined ; op. cit. p. 948. 
Ophiobyrsa , defined, list of spp.; op. cit. p. 947. 
Ophiocamax , defined, list of spp.; op. cit. p. 934. 0. gigas Koehl. 1900, 
Antarctic, descr., compared with 0. austera , 0. fasciculata, and 0. 
hystrix ; Koehler (172) p. 30, pi. ii. 
Ophiocampsis , defined ; Meissner in Hamann (146) p. 942. 0. pellicula , 
see ii, f, iv. 
Ophiocentrus , defined ; Meissner in Hamann (146) p. 936. 
Ophioceramis , defined, list of spp.; op. cit. p. 919. 
Ophiochaeta , defined ; op. cit. p. 923. 
