Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 411
rence between them simply consists in this; that inAsterolampra all the compartments are similar and equidistant,and the rays equal (Plate i., Fig. 2); whilst in Asteromphalus two * The Author concurs with Mr. Balfs in thinking it preferable to limit thegenus Actinocydus to the forms originally… … 180. of the compartments are closer together than the rest, and theenclosed hyaline ray (which is distinguished as the median or basalray) differs in form from the others, and is sometimes speciallycontinuous with the umbilicus (Plate I., Fig. 4), The eccentricitythus produced in the other rays has…
Microscopy · Biology
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