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There are also a tolerably large number of small, short, forcipiform 

 pedicellariœ in the poriferous areas, whicli stand out like so many 

 prickles when the specimen is drained of the alcohol. The non- 

 poriferous areas are very irregular in form and distribution, and 

 in the specimen now under consideration, I have estimated them 

 to be somewhat greater on the whole than the poriferous areas 

 put together. The general granulation of the non-poriferous areas 

 is exceedingly fine and looks smooth to the naked eye ; but there 

 rise from this general granulation some coarse granules which 

 are distinctly mammiform, there being a teat-like portion on the 

 top of each. In some parts they are more elongated and conical 

 in form, but they are distinctly mammiform, except in a very few 

 cases, mostly towards the ventral side. This mammiform charac- 

 ter of the coarse granules may also be observed in specimen 4, 

 but is not so conspicuous there. The madreporite is irregularly 

 elongated in outhne and surrounded by a number of especially 

 large mammiform granules. 



On the actinal side a tolerably distinct row of groups of 4-7 

 coarse granules can be made out on either side of the ambula- 

 cral furrows, which apparently correspond each to a subjacent 

 plate ; but they may be totally absent from some places. The 

 general granulation of the actinal side is distinctly coarser than 

 that of the abactinal side, and there stand out in it a large 

 number of particularly coarse granules, whicli are either flattened 

 and circular or at most hemispherical in form and not mammi- 

 form, as on the abactinal side. There are small valvate pedicel- 

 lariœ of varying height on the actinal side, which are more 

 numerous just outside the adambulacral plates but may be found 

 in smaller numbers all over this side. 



