Mr. Agassiz, to whose great kindness I am indebted for much information on the subject, informs me that there are other star-fishes, in which one of the three arms of the forceps is reduced to a support for the other two; and again, other genera in which the third arm is completely lost.
Kontu honi buruz adeitasun handienaz hainbat berri eman didan Agassiz jaunak diost badirela beste zenbait itsasizar, fortzepsaren hiru adarretatik bat beste bien euskarri bilakaturik dutenak, eta are hirugarren adarra guztiz galdurik duten beste genero batzuk ere.