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



but in other examples clavate or partly acute ; they are 

 arranged in single rows on all the ossicles, so as to form a 

 border around the papular areas ; toward the sides of the rays 

 they are distinctly longer and mostly clavate or subacute. 



The upper marginal spines form a wide band of small 

 crowded spines, five to ten or more on a plate. They are 

 larger and longer than the dorsals, and two or three times as 

 long as thick, mostly cylindrical or clavate, sometimes gouge- 

 shaped. Below this band there is a broad intermarginal chan- 

 nel with large papular areas and numerous rather large, 

 pointed major pedicellarise. This channel rapidly widens at 

 the bases of the rays. 



The lower marginals form a double* row, mostly two to a 

 plate ; they are similar to the upper ones, but longer and 

 mostly more clavate, often with gouge-shaped tips. Between 

 the upper and lower marginals, at the bases of the rays, a short 

 intermediate row of ossicles is sometimes interpolated. 



Major or forficulate pedicellarise are usually everywhere 

 abundant, scattered over the surface, between the dorsal, mar- 

 ginal, and actinal spines, and especially on the lateral chan- 

 nels and interradial areas. The larger ones are compressed, 

 rather large, lanceolate or acute-triangular, with a sharp or 

 acuminate apex. Those that are scattered on the dorsal sur- 

 face are much smaller, unequal in size, but similar in form, 

 though less acute. 



The type specimens are from Maloska (Prof. Kincaid). 

 Specimens of varieties have also been sent from St. Michael's 

 Island (L. M. Turner), 1873, No. 3821 ; Norton Sound (M. 

 Murdoch), 1883, No. 7621, U. S. Nat, Mus. A. amurensis 

 (Lutk.) is probably an allied species. Dedicated to Mr. Richard 

 Rathbun of the National Museum. 



Variety anomala V., nov. Figure 6. 



This variety is' remarkable for the very stout, crowded mar- 

 ginal and adambulacral spines, which are inflated distally and 

 obtuse, with the tips excavate or gouge-shaped. (See fig.) 

 Dorsal spines are small and capitate, but larger than in the 

 type. Radii 23 and 87 mm . St. Michael's I. No. 3821, U. S. 

 N. M. 



Variety nortonensis V., nov. Figure 7. 



This differs from the type in having the dorsal spines longer 

 and more acute, and the infero-marginal and actinal spines 

 longer and more tapered. Norton Sound (Murdock). No. 

 7621. 



