ECHINIDJ) OPHIURIDiE. 
515 
Upper edge of this pit, 2-4 perforate tubercles for small spines ; in one 
species, the arabulacral plates are quite naked ; in the other, they have 1-3 
spinigerous tubercles. The interambulacra do not reach to the inferior 
(actinal) orifice, which is surrounded by 10 ambulacral and 5 small oral 
plates ; near the superior (abactinal) orifice, each ambulacrum ends in a 
single plate with 1-3 tubercles ; the orifice itself is partially closed by 
small elongate plates. 
Asterid^. 
Hoffmann (8), p. 47, has some notes upon Linclcia multiforis, Lam., 
and L. miliaris^ M. Tr. \_L. laevigata, L. ; among its synonyms is Oph. 
suturalis, M. Tr., referred to Phataria by the Recorder]. Or caster muri- 
catus (Liuck), l.c. p. 48, pi. x. fig. 71, should have been termed 0. lincki, 
Blv., as shown by the Recorder in 1864. Among the synonyms, are cited 
0. castellunij Gr. . [correctly], tuherculatus, M. Tr,, and 0. mamillatus, 
M. Tr. ? [The last at least should have been omitted.] Yar. mutica, 
1. c. p. 49, pi. X. fig. 72. 
Of the Recorder’s “ 3rd critical and descriptive Memoir on Starfishes ” 
(1872), an abstract is given in J. Zool. ii. pp. 255-264. 
Ophiurid.®. 
Lyman’s paper (10) is partly based upon an examination of the prin- 
cipal European collections, and discusses or elucidates many points of 
doubt or controversy : it concludes with a digression on “ the homologies 
of the chewing apparatus.” Several plates and their explanation are 
devoted to the terminology and general morphology of this order. 
An analytical table is given (p. 221) of Pectinura, Forb. (including 
Ophiopezella, Lgm., and Ophiachasma, Grube) ; notes and figures are 
given of P. infernalis, M. Tr. (pi. vii. fig. 1), and septemspinosa, M. Tr. 
(pi. vi. figs. 10-13). P. marmorata (p. 222, pi. v. figs. 1-7, Philippines), 
and rigida (p. 224, Zanzibar), spp. nn. Ophiochasma adspersum, Gr,, 
= P. stellata (Lym.); Ophiopeza yoldi^ Ltk., and O.fallax, Pet., are 
distinct. 
On OpMocoma scohpendrina (Lmk.), cf. Hoffmann (8), 1>. 46. The 
identity or distinctness of 0. hrevipes, Pet., insularis, Lym., and ternis- 
pina, V. M. (and sqiiamata, M. Tr.), is discussed, but not settled ; Lyman 
(10), p. 225. 0. altcrnans, v. M., is probably the young of 0. scolo- 
pendrina ; but 0. picta (p. 225, pi. vii. figs. 2-4) is an Ophiarthrum'^ 
differing from OpMocoma in its naked disc. 
OpMomastix Jlaccida, sp. n., Lyman (10), p, 226, pi. vi. figs. 14 & 15 
Philippines). ^ 
OpMoplocus csmarhi, sp. n., id. 1. c. p. 227, pi. v. figs. 12-14, pi. vi. 
fig. 6 (California). 
AmpMura planispina.,Y, M., is not a JlemiphoUs^ as it has tbroomoutli- 
papilltn on each side ; A. laivis, sp. n., p. 229, pi. iv. fig. 18-21 (Philip- 
pines), also belongs to AmpMpholis, Ljgm., Ltk. ; likewise OpMocnida 
{OpMophragmus) ecMnata,Jjjgm.? (longipeda, Lym,, MS.) (Philippines), 
p. 229, pi. vi. figs. 7-9 : id. 1. c. 
