CRlNOID^j FOSSIL ECHINOOBRMATA. 
EcL 15 
CRINOIDiE. 
Comatula indica, sp. n., Smith (18 b), p. 406 (Rodriguez). 
Bathycrinus aldrichianus, sp. n., C. W. Thomson (22a) p. 47 (1^ 47'lat. 
N., 24^ 26' long. W., 1850 faths ). Ten arms, not simple, as in B. gracilis, 
but with well-developed short pinnules ; stem .very long ; a few jointed 
branches forming a root of attachment. Five basals soldered into a ring, 
scarcely discernible from the upper stem- joint ; the five “ first radials” in 
old specimens frequently soldered into a funnel-shaped piece, articulating 
with the “ second radials,” which are united by sutures with the “ third, 
or axillary radials.” Disk membranous, with scattered calcareous 
granules, mouth subcentral, without regular oral plates, anal opening on 
a low inter-radial papilla ; ovaries borne on the 6-8 proximal pinnules. 
Hyocrinus bethellianus, g. & sp. nn., id. 1. c. p. 51 (46° 16' lat. S., 48° 27' 
long. E.). Stem rigid, composed of short joints, united by sutures ; basals 
2-3 large, more or less fused together ; one cycle of large radials, articu- 
lating with five narrow arms, bearing at certain distances long pinnu lae, 
which decrease successively in length, but all reach nearly to the same 
level. The basal portion of the arms, between the radials and first pin- 
nula, consists of three double (syzygial) articles ; the following internodes 
are made up each of four syzygial articles. Peripheral part of the disc 
paved with closely set plates, irregular in form ; mouth closed by four 
large triangular plates ; anal opening upon a short plated inter-radial 
tube. Ovaries on the 3-4 proximal pinnulae. In facies, Hyocrinus is 
somewhat like Platycrinus and Poteriocrinus, and other palasozoic 
Crinoids. 
The Echinodcrmaia dredged on the “ Valorous ” Expedition in Davis's 
Strait and the North Atlantic are recorded by Norman for each station 
in P. R. S. XXV. pp. 202-215. 
Fossil Echinodermata. 
Gr. CoTTEAU, Echinides nouveaux ou peu connus (N. 104-110), R. 
Z. (3) iv. pp. 317-326, pis. i. & ii. (xxxvii. & xxxviii.) ; id., Description 
des Echinides tertiaires des Isles St. Barth^il^my et Anguilla, Sv. Ak. 
Handl. (n.f.) xiii. 6, 47 pp. 8 pis. (J. Zool. vi. pp. 62-64), Bull. Soc. 
Geol. (3) V. pp. 126-130 {Peripneustes, g. n., Cotteau, allied to Macro- 
pneustes, differing through the depth of the anterior and lateral ambu- 
lacal furrows, and through the large sinuous fasciole, circumscribing the 
ambulacra and the large dorsal interambulacral tubercles) ; id., Peron 
& Gauthier, Echinides fossiles de I’Algerie, 3“»e- partie ; id., Paleont. 
fran 9 aise, terrain jurass., Echinides r^guliers, Livr. 36, pis. clxxix.-cxc. 
P. M. Duncan, On the Echinodermata of the Australian cainozoic (ter- 
tiary) deposits, J. G. Soc. xxxiii., Ann N. H. (4) xviii. p. 185. G. 
Panzi, I Fossili del monte Vaticano (Echinodermi), Atti Acc. Rom. (2) 
iii. pt. 2, p. 947 et seq. — Hornes, Die Fauna des Schliers von 
Ottnag (JB. Geol. Reichsanst. xxv. pp. 389-391, pis. xii. & xv.) {Schi- 
zaster laubei, Brissopsis ottnagensis, spp. nn.). P. de Loriol, Note, 
&c. (11) {Enallaster, Pseudocidaris, Astropecten). W. Keeping, On the 
