ECIIINODERMATA. 
645 
Jjjiingman’s “ Opliinroiclea Tiventia hue usque cognita” was not published 
before March 1807. Vide Verrill, 1. c. p. 391. 
Ophiothda dance, sp. nov., Verrill, 1. c. p. 391, Fiji Islands, in large num- 
bers on 3Ielitodes virgata, V. 
OphiopsiJa (Ophianophis) anmdosa (Sars) is mentioned by Brady, 1. c. 
p. 365, pi. 22. figs. 1-6, as dredged in Birterbuy Bay, Connemara. Only a 
single ray was found in the dredge. The type specimen was taken by Sars 
in the Bay of Naples. 
Aster ophytidoi. 
Lutken (/. c. p. 63) gives the following conspectus of this 
family : — 
A. Brachiis simplicibiis. 
a. Rimse geni tales binse in fossis, scutis oralibus immediatim juxtapositis, 
approximatre, nec non 
1. In iiitima parte ventrali disci, discus et brachia omnino nuda; spime 
ambulacrales breves 4, longa una, orales papillarum oralium et den- 
tium locum tenentes Astero7iijx, M. Tr. 
2. In lateribus disci, in angulis brachiorum ; discus et brachia granulata, 
hsec autem ad basin nodosa ; spinae ambulacrales breves binae ; pa- 
pill.-B orales et dentes adsunt Asteromoipha, Ltk. 
h. Rimoe genitales sejunctae, ad basin brachiorum, non in fossa comrauni 
binae. 
3. Discus et brachia granulata, ceterum hevia; spinas ambulacrales 
binae; papillae orales, dentes ? Aster oschema,QS,sidi.,JA\c. 
4. Costae disci et brachia profunde annulata, asperrima ; spinao ambu- 
Incrales 5 aut 0 ; spintc orales Asteroporpa, QCst., Ltk. 
B. Brachiis divisis, aut 
5. In extrema parte modo ; rimae genitales approximatae, in angulis bra- 
chiorum, id est in lateribus disci, sed non in fossa communi junctae. 
Papillae orales et dentes verae adsunt . . Trichaster, Ag. 
Brachiis divisis, aut 
0. A basi inde; rimae genitales late sejunctae, ad basin brachiorum; 
pro dentibus et papillis oralibus spinae orales plerumque adsunt. 
Aster ophy ton, M. Tr. 
Aster cypliyton stimsonii, sp. nov., Verrill, /. c. p. 388. Allied to A. lamarckii, 
Ochotsk Sea, and also north of Behring’s Straits. 
Aster ophyton mucro7iatum, sp. n., Lyman, 1. e. p. 348. 
Astrogoniphus, g. n., Lyman, 1. c. p. 350. Disk with ten low, very narrow 
radial ribs running nearly to its centre, and beset with numerous spines ; 
arms simple ; skin of arms and disk covered by a mosaic of small flat grains, 
the joints of the former distinguished by ridges, each of which consists of 
belts of granules, some of them bearing minute hooks ; arm-spines like 
thorny stumps, and arranged in clumps just above the tentacle-pores; teeth ; 
tooth-papilhe and mouth-papilla} all similar and spiniform : two genital slits 
in each interbrachial space. A. vallntns, sp. n., Lyman, 1. c. p. 350. 
Ophiocreas, g. n., Lyman, /. c. p. 347. Disk and arms uniformly covered 
with soft skin, bearing microscopical grains ; disk small, its interbrachial out- 
lines reenteringly curved ; five pairs of narrow, rather high radial ribs run- 
ning from the margin (piite to the ccnitro ; arms simple, v(iry long and 
