M. kretseri - does a subspecies exist?

Hi,

Several resources mention the existence of Malpulutta kretseri minor, besides Malpulutta kretseri. I wonder if a Malpulutta (sub)species really exists, besides kretseri?

Since a few weeks, I have a second strain of Malpulutta. At first, I thought they might be a different variety/subspecies indeed, comparing them to the strain I already had! However, the differences I noticed, all disappeared in approx. 2 weeks time.

So, I guess that Malpulutta colors, patterns and even their body shape change easily, depending on their mood and the circumstances in which they are kept.

Naturally, I'd be very interested in observations made by others as well as in opinions and resources in this matter. Thank you in advance for sharing any!

Kind regards,
Karen