244 s: GOTO : 



covered A\itli slioi-t, terete, blunt, gi-auiiliform spiuelets, similar to Lut larger 

 tliau paxillar spiuelets, becomiug well defined, slender spinelets in the fasciolar 

 gi'ooves. The superomargiual spinelets are close-set and small, forming an 

 even nap on the exposed siu'face of x^lates. 



" Inferomarginal plates much wider than long, encroaching more onto 

 actinal area than do superomarginals onto abactiual, and corresponding in 

 position to superomarginals. Spinelets, densely covering sm-face of plate, 

 larger than those of superomarginals, and increasing in size toward outer 

 end of plate which projects shghtlj- bej'ond adjacent end of superomargiual, 

 thus defining the ambitus. Inferomarginal spiuelets somewhat granuliform 

 in middle of plate, often attaining a squamiform appearance near outer end ; 

 spinelets in fasciolar fuiTows, slender, Spinelets on extreme upper or outer 

 edge of plate (above the squamiform spinelets) are similar to those of ad- 

 jacent i)Oi'tiou of sui:>eromarginals, the true ambitus or edge of ray being a 

 little below the margin of plate. It is on this rounded edge of ray that the 

 largest spinelets occur. No enlarged spines or tubercles on either marginal 

 series. Terminal plate small, gi-anulose, deej^ly notched l^elow. 



" Actinal inten-adial area large ; intermediate plates low-paxilhform, arrang- 

 ed in che"VTons, the series adjacent to adambulacrals extending about three- 

 fourths length of ray or to eighth inferomarginal. Plates decrease in size 

 toward margin, are sti'ongly imbricated internally, and the i^axillar crocus 

 wliich are composed of about twenty-five to tliirty clavate obtuse, not very 

 crowded, spinelets (slender when dry) sm-mount a veiy low convex elevation 

 or tabulmn. Well-defined fasciolar channels separate these tabula. 



" Adambulacral pLates about as wide as long, with a slightly roimded, 

 angular fmTow margin, the angularity being more x^i'onoimced in vicinity of 

 mouth i)late. Armatm-e consists of (1) a fm-row series of fom- (sometimes 

 tlu-ee) terete or slightly flattened bluntly pointed tapering spinules about as 

 long as x)late and gi-aduated in length orad, the longest spine being on 

 aboral end of plate; or the spinules may be disposed like rays of fan and 

 gi-aduated in length toward either end of series. (2) On actinal sm-face are 

 about three longitudinal series of smaller spinelets, decreasing in length to- 

 ward outer edge of pkte where the spinelets are like those of actinal inter- 



