<i>Tokyoensis</i> vs <i>dunni</i>

[paris]

can any one give me some measurements on these two so i can tell them apart? i am wondering if those i go a few years back may not be dunni instead. the problem is i see both seem to have a gray and a brown phase. their egg sacs look very similar too. they seem to look alike in pictures-any one know of a way to differentiate them?

 

[TJ]

Dunni are rounder than tokyoensis and also tend to be greenish. Also, dunni are relatively calm and will readily eat hand-fed worms, while tokyensis are the opposite on both counts. Tokyoensis are not as hardy when kept in captivity. Maybe you could try counting costal grooves (11-12 for dunni, 11-13 for tokyoensis, meaning 13 would make it dunni)or something to be sure what you have. I've got plenty of reference materials around but I'm not able to get at them right now.

(Message edited by TJ on September 06, 2006)