[SCIENTIFIC RESULTS OF THE PHILIPPINE CRUISE OF THE FISHERIES 

 STEAMER "ALBATROSS," 1907-10 —No. 10.] 



NEW GENERA OF STARFISHES FROM THE PHILIPPINE 



ISLANDS. 



By Walter K. Fisher, 



Of Stanford University, California. \ 



The new genera and species of starfishes described in this paper 

 were obtained in the region of the Philippine Islands by the U. S. 

 Fisheries steamer Albatross during her cruise of 1907-1910. These 

 species will be fully illustrated and described in greater detail in the 

 final report on the collection, now in course of preparation. 



Family PORCELLANASTERID^. 



BENTHOGENIA, new genus. 



Related to Thoracaster Sladen, but differing in having cribriform 

 organs between all the marginals, in having the dorsal surface of 

 distal half of ray one continuous cribriform organ, hi having the 

 cribriform organs of interbrachium merged into one, in the spinifer- 

 ous distal superomarginals, and in the presence of a large spiniferous 

 terminal plate, dorsal in position. No odd interradial marginal. 

 Superomarginals increasing in size very gradually to the sixth, which 

 is considerably larger than the rest and meets its fellow in median 

 line of ray; beyond this point all superomarginals in contact. Crib- 

 riform organs 29 or 30, the distal ones rudimentary and the 11 of the 

 interbrachium merged into one (as far as middle of sixth super- 

 marginal) ; structure papilliform. Adambulacral plates with a nu- 

 merous furrow series and numerous smaller spinelets on surface. 

 Actinal interradial areas extensive, covered with small spaced spine- 

 lets. Intermediate plates extend nearly to end of ray. Abactinal 

 paxillre large, crowded. 



Type. — Benthogenia cribellosa, new species. 



BENTHOGENIA CRIBELLOSA, new speries. 



Rays 5. R = 78 mm., r = about 30 mm., R = about 2.6 r; breadth 

 of ray at base, about 34 mm., at sixth superomarginal, 12 mm. Over 



Proceedings U. S. National Museum, Vol. 40— No. 1827. 



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