294 SEA-EGGS AND STAR-FISH. 



dark spots, was obtained from the same locality. In 

 deeper water along the coasts of these islands., the 

 dredge furnished us with numerous Spatanyi, the spines 

 of which, when the animals are alive, have a slow oscil- 

 lating movement, but they do not serve as such important 

 organs of locomotion, as they do in the Cidaris and 

 Echinus. The flattened forms of Echinodermata are 

 very numerous all over the China Sea, strewing the 

 muddy and sandy floor, and every time the dredge was 

 examined, numbers of Scutella, Lobophora, and other 

 forms, were procured ; they appear to have less vivacity 

 and perception than even the Spatangi. Among the 

 Echini procured in this way, was a very handsome species, 

 having bright ultramarine spots in the radial grooves, 

 extending from the mouth to the anus, with spines long, 

 slender, and marked with alternate light and dark rings ; 

 others were procured of a delicate rose-colour, and large 

 and splendid Cidares, with tuberculated, compound spines, 

 having other flattened spines and narrow calcareous plates 

 in the sulci between the segments, were also noticed 

 among other beauties brought to light by the dredge. The 

 tubular processes which issue from the ambulacral pores in 

 this Cidaris, are capable of enormous dilatation, and the 

 sucking discs at their extremities, are possessed of consi- 

 derable powers of tenacity. I observed the animal after 

 rolling itself along, by means of its spines, assisted by its 

 tubular appendages, the so-called feet, commence leisurely 

 to ascend the sides of the wash-deck bucket, in which 

 I held it captive, nor did it cease its persevering en- 

 deavours until it had arrived at the very edge, when, on 

 touching it, the tubular tentacles were withdrawn, the 



