JOURNAL OF MICROSCOPICAL SCIENCE. 
DESCRIPTION OF PLATES IV & V, 
Illustrating Dr. Herapath’s paper on the Pedicellarize of the 
Echinodermata. 
PLATE IV. 
Uraster rubens. 
Fig. 
1.—a, Two pair of pedicellarix forcepiforme in conjunction, 
6, Pedicellarie mandibulate in conjunction, and separated by the 
process of boiling. 
c, Basal joint of p. forficiforme. 
d, Two valves of p. forficiforme, side view. 
e, Basal joints of p. mandibulate. 
J; Separated valves of p. forcepiforme. 
9» Upper ring of the sand-tube of Uraster rubens. 
2.—a, Valves of p. forcepiforme. 
b, Two valves, separated, of pedicellarize forficiforme. 
ce, Valve of p. mandibulate. 
d, Basal joint of p. mandibulate. 
3.—a, Conjoined p. mandibulate. 
6, Separate valves of the same. 
e, Separate valves of p. forficiforme. 
e, Front view of single valve of p. forcepiforme. 
J; Basal joint of p. forficiforme. 
4.—Portion of external integument of raster Urubens, containing the 
pedicillariz. 
a, Solitary pedunculated pedicellarie forcepiforme. 
6, Aggregated pedicellariz forcepiforme, surrounded by their fleshy 
covering. 
ce, Pair of p. mandibulate. 
5.—Portion of skeleton of Uraster rubens, dried and mounted in balsam. 
a, Opaque calcareous skeletou, forming bars of fenestral spaces. 
6, Membrane filling up fenestral apertures. 
ce, Pedicillarie mandibulate, attached to membrane of fenestra. 
6.—One of the spines from ambulaeral grooves, with pedicellarie attached. 
Forfiziforme. 
Uraster glacialis. 
7.—Two valves of p. maxillefore, separated from basal joint. 
8.—a, Three pairs of p. forcepiforme, in various positions. 
4, Single valve of p. maxilleforme. 
9.—Two valves of p. mandibulate. 
10.—Basal joint of p. forficiforme. That of p. maxilleforme is similar in 
form, but much larger. 
