A. E. Verrill — New Genera and Species of Starfishes. 69 



skeleton conspicuously reticulated, leaving large papular areas, 

 which are mostly rounded or somewhat elliptical, the trans- 

 verse diameter the greater. The intervening ossicles are strong 

 and prominent above the surface, as narrow convex ridges ; 

 those at the intersections and in the radial rows larger and 

 deeply four to six-lobed, convex in the middle, with a central 

 mammilla and pit where the spine is attached. 



The dorsal spines consist of two very unequal kinds. The 

 larger ones are few in number and are widely scattered, except 

 in the median radial line, where they form a pretty regular 

 row ; the others stand somewhat in quincunx, but may belong 

 to about three imperfect rows on each side. These spines 

 stand on the larger plates at the intersections of the reticula- 

 tions. They are rather large, short, and thick, not much 

 higher than broad, with enlarged, truncate or capitate tips, 

 striated on the sides and rough on the top. They are about 

 l*5 mm broad. Between these there are many very small incon- 

 spicuous spines, arranged mostly in single rows along the 

 narrow ossicles that form the sides of the reticulations. Some 

 of them are acute, but most are slightly clavate with rough or 

 spinulose tips. Both kinds are scattered irregularly on the 

 central area of the disk. 



Small minor pedicellarise are thickly scattered over the 

 whole surface between the spines and on the papular areas, 

 and also form wreaths around the larger spines. 



The supero-marginal spines form simple regular rows, and 

 are much like the large dorsals in length and form, but are 

 smaller. The intermarginal channel is well defined and of 

 moderate width. The infero-marginal spines form a regular 

 row, mostly simple, but frequently stand two on a plate dis- 

 tally. They are followed, proximally, by two pretty regular 

 close parallel rows of actinal spines, of about the same size 

 and shape. These three rows of ventral spines are longer 

 than the supero-marginals and less clavate, but about as stout. 

 They are blunt and sulcate at the tips. The first subactinal 

 row extends only to about the end of the proximal third of 

 the ray ; on the proximal fourth there is also a simple row of 

 synactinal spines. 



The ossicles of the two marginal rows and next two actinals 

 are thick, nearly equal in size and form, and proximally stand 

 in four or five regular rows ; the upper marginals are a little 

 more removed, but the others are closely united in a tessel- 

 lated manner, leaving only small papular pores between them. 

 The exposed part is convex, with facets and pits for the spines. 

 They are' slightly four-lobed, but are so imbricated that they 

 appear squarish with rounded corners, or ovate- triangular. 



