418 l^fi'- W. K. Fisher on neio 



Closely allied to E. mascareniensis, D. & B. ; distinguished 

 bv the stuuter and shorter hind limbs. 



By an unfortunate oversi<>ht, the frog recently described 

 by me in these ' Annals^ (vol. xix. p. 407) as li. leonensis is 

 stated to be from Sierra Leone; it was obtained by 

 Dr. Spurrell at Bibianaba, Gold Coast. 



LI. — Neic Genera and Species o/'Biisingidse *. 

 By Walter K. Fisher, Stanford University, California. 



The new genera of starfishes of the family Brisiugidaj which 

 are described in this paper are partly derived from an analysis 

 of Brisinga and Freyella of authors and partly from new 

 species dredged by the U.S. Fisheries Steamer 'Albatross' 

 in the East Indies and in the North Pacific. Craterohrisinga 

 and Stegnohrisinga have already been proposed as subgenera, 

 but a turther study of the material has convinced me that 

 they are good generic groups. 



The complete diagnosis of any genus in the following 

 synopsis is obtained by starting with the a which heads the 

 particular section in which the genus is found and reading 

 each pertinent section until the genus is reached. For 

 example, the account oi Brisinga is contained in paragraphs 

 a^, P, c', d^, e^,f^,g^ ; that of Gymnohrisinga in paragraphs 

 a^, b^ ; that of Astrocles in a^, P, c'^, d'-, e^ ; and so on. 



It is hoped that this preliminary account will be of use to 

 my colleagues. Any corrections, or information regarding 

 the generic position of known species of " Brisinga " and 

 " Freyella,^^ will be gratefully received. 



Synopsis of the known Genera of Brisingidse. 



a\ Abactiual surface of disk and genital region 

 (if ray provided with numerous conspicuous 

 papultfi ; two gonads to each ray ; mouth- 

 phites broad and fan-shaped toward actino- 

 stome, ueavh" closing the entrance to the 

 ambulacral furrow ; genital rej>ion of ray 

 with transverse skeletal arches, between 

 which the integument is strengthened by 

 immersed plates and pierced by papular 



* Published with permission of the Commissiouer of Fisheries. 



