8 Ech . 
ECHINODEEMATA. 
proximity to Brisinga, are modifications of Perrier’s system (Zool. Reo. 
xii. pp. 660 & 661) suggested by the examination of the dermo- skeleton. 
M. Saks (19). Pterdster multijpes (p. 65, pi. viii. figs. 1-17), with parts 
of P. militarise pulvilluSe and Asterias glacialis (figs. 18-23), and Goni- 
aster hispidus, sp. n. (p. 72, pi. viii. figs. 24 & 25). 
Koren & Danielssen (10). Solaster affinis, Brdt. (290 fathoms, 64*^ 
35’ N. lat., 10° 20' W. long., hitherto only known from Berings’ Sea, with 
ten arms, p. 13; Archaster tenuispinus, D. K., p. 15 (supplemental descrip- 
tion, pi. iii. fig. 7); A.pareli, D. K., var. longo-brachialis, p. 17 (61° 40' to 
64° 50' N. lat., 20° to 40» E. long., 151-214 fathoms) ; A. pallidus, sp. n., 
p. 18, pi. iii. figs. 1-7 (62° 44' to 66'^ 66' N. lat., 30° W., to 60° E. long., 
400-1180 fathoms) ; Hymenaster pelluciduSe W. T., p. 24, pi. iv. figs. 1-14 ; 
JT.^nobilis is refigured in W. Thomson’s “Atlantic,” ii. pp. 240 & 241 ; 
Leptychaster Jcerguelensis [= Archaster excavatusTy W. T.], ibid., p. 235. 
Gasoo (7) describes and figures the following species from the Medi- 
terranean : lessoncBe sp. n, (p. 8, figs. 4 & 5), Asteropsis 
capreensis, sp. n. (p. 9, figs. 6 & 7), Asteriscus \_Asterina~\pancerii, sp. n. (pp. 
8 & 9) (a young A. verruculata figured for comparison, fig. 10), and Gonio- 
discus placentiformise Hell. (fig. 11). 
Asteracanthion \_Asterias~\ palceocrystallus, sp. n., Duncan & Sladen (5) 
p. 455 (Discovery Bay and Cape Fraser, 25-80 fathoms). 
Ophiuridjj. 
Ophiopteris, g. n. Disk granular (no radial shields) as in Ophiocoma ; 
teeth, tooth-papilljB, oral and adoral shields, and the mouth-slits as in 
Ophiothrix ; oral papillae small, hardly distinguishable from the tooth- 
papillae ; brachial shields and true spines similar to those in Ophiocoma ; 
2- 3 compressed, imbricated, scale-like spines above the uppermost true 
arm-spines ; ten genital slits ; ambulacral scale present, 0. antipodarmUe 
sp. n., Smith (22 d) (New Zealand). 
Acantharachnae g. n. (subg. of Ophiomastix). Discus cute molli, minute 
squamata, spinas paucas supra et infra gerente, inductus ; scuta radialia 
nuda; dentes, papillae deutales et orales Ophiocomcc\ squamae ambulac- 
rales nullae ; spinae brachiales supremae maxime irregulariter positae. A. 
mirabiliSe sp. n., Smith (22 c) (Philippine Islands). 
Ophionereis albo-maculata, sp. n., id. P. Z. S. 1877, p. 92, pi. xi. 
figs. 1-5 (Galapagos Islands). 
Ophiopleurue g. n. Skin of the disk firm, naked, smooth, covering a 
rich squamificatiqn ; arms also covered by a smooth, delicate skin which is 
produced on the spines, but allows the plates to be seen ; ten elevated 
ribs on the back of the disk ; mouth-papillae bordering the mouth-slits on 
both sides, flat, with smooth rounded margins ; teeth depressed, with a 
broad base, forming irregular series ; ambulacral papilla) present ; ten 
genital slits. 0. borealis^ sp. n., Koren & Danielssen (10), p. 33, pi. v. 
figs. 1-4 (63° 5' N. lat., 3° to 0°60'E. long., 610-570 fathoms). (Regarded 
as the type of a new family, Ophiopleuridce.') 
Astrophyton mahngreni, sp. n., iid. 1. c. p. 37 (62° 44' to 64° N. lat., 
3- 46° E. long., 400-510 fathoms). 
