lY'i A. E. Verrill — Revision Genera and Species of Starfishes. 



Adambulacral plates are large, as wide as the adjacent actinal 

 plates or wider. Each one bears seven or eight small, compressed 

 furrow spines, in a regular row ; the spinules of the actinal side are 

 very small, on the proximal plates, and form an irregular group on 

 the outer half or else stand more or less in three or four rows ; most 

 of them are scarcely larger than granules ; distally one or two of 

 the second row become much larger conical spines. 



A small elongated pedicellaria, with two, three, or four spatulate 

 blades, occurs on the center of many of the adambulacral plates and 

 on some of the actinal plates. 



The dentary plates are large, separated by an open suture ; each 

 one bears an actinal triangular group of numerous small granules 

 and a furrow-series of about ten or twelve small, prismatic, blunt 

 spinules, those toward the apex becoming larger. 



This genus is separated from its allies mainly on account of the 

 few and minute papular pores and the veiy limited area on which 

 they occur; the thin and small marginal plates; flexible dorsal sur- 

 face of the disk; and large number of adambulacral spines. 



The type is the only species determined. Mr. Alcock has recorded 

 this species from the East Indies. Possibly this may indicate a 

 second species of the genus. 



liitonotaster intermedius (Perrier). 



Pentagonaster intermedius Perrier, Etoiles de Mer. , p. 243, pi. v, figs. 5, 6, 

 1884. Sladen, Voy. Chall., xxx, p. 746, 1889. 



Plate XXVIII. Figures 5, 5a, 55. 



This species was taken by the Blake Expedition in the West 

 Indies, in 1930 fathoms. 



It was also taken by the Albatross at station 2379, in 1467 

 fathoms, yellow ooze (two examples, No. 18,424), 



I have compared the type described by Perrier, from the Blake 

 Exi^edition, now in the Museum of Comp. Zool., with those taken by 

 the Albatross. They agree closely. The larger Albatross specimen 

 has the radii 33™"^ and 14™™. 



Eugoniaster, gen. nov. Tj-pe, E. investigator is (Alcock). 



Form broadly pentagonal, with short rays. Abactinal plates uni- 

 formly small and rounded, naked, except for a marginal series of 

 granules ; some of them bear broad, bivalve pedicellariae. Papular 

 pores numerous, placed singly, radial. Marginal plates mostly 

 naked with a border of granules and also some in a central group. 



