58 BRITISH PALAZOZOIC FOSSILS. [ EcuiNopERMATA. 
EucaLyptrocrinus pecorus (Phill. Sp.) 
Ref. and Syn.—Hypanthocrinites decorus (Phill.) Sil. Syst. t. 17. f. 3. 
Sp. Ch.—\st primary radials rather more than one-fourth wider than long, 2nd primary radials one- ‘ 
third wider than long; 3rd primary radials (or scapule) hexagonal, each supporting on its truncated apex 
an ovate interbrachial plate, nearly twice as long as the scapula; from the two upper sides of the scapula, 
or cuneiform primary radial, proceed two rows of secondary radials (or arms) of two or three joints, the 
first of which is much the largest; from the last of which proceed two rows of tertiary radials (or hands) 
of three or four joints, each hand terminating in one thick finger, of two rows of cuneiform joints; on each 
large Ist interradial plate rest two semi-elliptical 2nd interradial plates, together about equalling the inter- 
brachial plate in size; from each of these pairs and from each of the interbrachial plates, a thick smooth club- 
shaped ridge runs nearly to the ends of the fingers, followed towards the mouth by a large ovate tubercle ; 
capital plates very gibbous. Length from pelvis to base of mouth, two inches four lines; width of cup, one 
inch one line; length of fingers, one inch two lines. 
Position and Locality—Wenlock limestone, Dudley, Staffordshire. 
EvcCALYPTROCRINUS POLYDACTYLUS (J/°Coy). Pl. 1. D. fig. 2. 
Ref.—M Coy, Ann. Nat. Hist. 2nd Series, Vol. IT. p. 249. 
Sp. Ch.—(The small concave pelvis not seen) ; Ist primary radials hexagonal, convex, one-third wider 
than long, each supporting a quadrangular 2nd primary radial nearly twice as wide as long, its width 
nearly one-third less than that of the Ist primary radial; on each 2nd primary radial rests a pen- 
tagonal 3rd primary radial (or scapular) joint, equalling the second ditto in width, but exceeding it in 
depth; on each cuneiform primary radial or scapula rests two hexagonal Ist secondary radials or arm- 
joints, nearly equalling the scapule in width and depth, and joining by their inner margins (so that the 
interbrachial plates cannot rest on the scapulze); on each of these rests a smaller hexagonal 2nd_ second- 
ary radial, from each of which arise tro rows of tertiary radials, or hands, bearing four or five fingers each ; 
between the two 2nd secondary radials or arm-joints of each arm is a small heptagonal interbrachial 
plate, its inferior pointed end resting on the two Ist ditto, and its truncated upper end supporting the 
usual small lozenge-shaped plate (second interbrachial) peculiar to this genus; circumscribed by all the 
primary radials and Ist secondary radials, are the five large, equal, convex, nine-sided interradial plates, 
each supporting on its upper edge a vertical row of three 2nd, 3rd, and 4th hexagonal interradial plates. 
Diameter of cup about one and quarter inch. 
Besides the minor differences of proportion in the various plates which may be gathered from the 
description, this differs from the Hypanthocrinus (Hucalyptrocrinus) decorus (Phill.) and #. rosaceus (Gold.) 
in the lateral union of the Ist arm-joints or secondary radials, and their supporting the interbrachial plates, 
instead of the cuneiform primary radial or scapula, the scapule consequently being pointed above; also in 
the plates resting on the interradials, not being bifid, and most remarkably from all of the genus in the 
number of fingers, there being but one to each hand in the other species. I have only seen a cast, and 
am not certain whether the fingers have one or two rows of joints. 
Position and Locality—Rare in the Wenlock limestone of Dudley, Staffordshire. 
Explanation of Figure —PI. 1. D. fig. 2. Natural size from Dudley. 
4th Ord. AsrEeri™®. 
Body divided into five or more hollow, simple, ray-like, lobes, containing the viscera, and grooved on 
the under side for ambulacra, or rows of suckers, for locomotion. One of the rays (considered the anterior) 
has opposite to it, in the space between the bases of two rays at the dorsal aspect, a peculiar porous 
