ibe Natural Hiftory off JAMAICA, 
267 
Cuapv. XV; 
Of Echini Marini, Sea Urchins, or, Sea Eggs: 
HE Mouth, Teeth, and other Parts of the Shells of thefe Ani- 
mals make them compos’d of feveralShells rather than of one(like to 
the foregoing Balani whom they much refemble) which they appear to 
haveonly at firft View. They are cover’d on the outfide with Prickles of 
feveral Shapes and Sizes which are fet on to Studs or Balls on the out- 
fide of the Shells plac’d in Rows, and have Sockets or are hollow’d on their 
under Pare making a Joint on which they can move every Way: 
J have fcen them at the Bottom of the Sea ufe them inftead of Legs and 
move fwiftly, and direct them towards the fame Point, as in an Army 
Pikemen ufed to turn their Pikes. The ordinary ones found on the Coatts 
of England and on the Southern Coatts of Frazce are eaten as Oyfters in 
the laft of thefe Places. Many of their Shells are found inclos’d and fll’d 
with Chalk in the Chalk Pits of Ket, where they are call’d Chalk- 
Eggs, and are fuppos’d to contain in them a finer fort of Chalk us’d 
to cure Loofeneiles, and are therefore laid by and preferv’d by the Work- 
men. I haveone from near Gailford in Serry which is half Chalk and 
half tranfparent Chryftal. More of thefe Kinds are found foffil than of 
the other forts of Shells which are found under Ground. Some are found in 
Klint, and the feveral Parts of their Shells as their Mouths and other 
Pieces are alfo found with them and their Prickles of which the La- 
pides Fudaict feem:to bea fort. I have had lately given me by Mr: Key- 
er from Hanover, tome Monganar Sand which feems to be common whi- 
tifh Sand, wherein are Pieces of thefe Shell and their Studs and Spikes 
taken up near Hanover at a Place call’d Monganar. They feem very 
little chang’d from their natural State, only broken to pieces. The 
Prickles of moft Echini are different in Length and Magnitude, tho’ on the 
fame Shell, they correfponding to the Magnitude of the Knobs of the 
Shell on which they are to turn. 
I. Echinus marinus major elatus rotundus, aculets gracilibus, [ubviridibus, 
glabris. Tab.242. Fig. 1,2. An Echint marini efculenti, Rumph. Thef. 
an. p.2. Tab. xiii, Lit. A, B, C. Pommes de Mer. Rochef. p. 233, 235. 
The common Sea Ege, 
This was in every thing the fame with what is found on our Coatts, 
only the Prickles were fomewhat larger and greenifh, and the Body 
of the Echinus more fpherical. 
It was taken on the Reefs near Gaz-Cayos off of Port-Royal Harbour. 
Il. Echinus Marinus major, rotundus, elatus, aculeis gracilioribus, a/peris, 
longioribus, nigricantibus, donatus, Tab. 243. - 
The great, long prickled Sea Egg. 
This is round, as big as ones Fift, fet about on every Hand with 
Prickles, the largeft being three or four Inches long, with Membrancs 
round their fetting on to the Shell, where the Prickles are large, and thee 
alfo 
