That's the same fish?
As can be seen from its taxonomy Macropharyngodon is a sand wrasse; at night or when frightened it will bury itself in the substrate. As I said, the Leopard wrasse as it is commonly called is an attractive choice for a marine aquarium, especially a reef aquarium. However, do not consider one unless you can provide it with a minimum of substrate where it can bury itself. ...
Provided with a substrate the leopard wrasse is resistant to most ciliated protozoans, possibly because tomites (the infectious stage in the protozoan's cycle) are most successful at locating and attaching to a host when fish are relatively motionless at night during sleep. Buried in the sand apparently the sand wrasses are difficult for parasites to locate and or attach to.
Like most, if not all tropical wrasses Macropharyngodon is a protogynous hermaphrodite. That is, most begin life as females and males develop from females as needed. To complicate matters there are primary males (those born as males) whose coloration is more intense and whose testis are cylindrical and white with a seminal duct. Generally, there is one dominant male, usually primary, to a number of females. However, if that primary male is eliminated the highest ranking female transforms, often in a matter of hours, into a fully functional male. These are called secondary males, and though fully functional and able to maintain control over the harem, their coloration is not as intense as that of primary males and their testis "reflect their ovarian origins." (Baensch, Marine Atlas)
http://www.advancedaquarist.com/issues/mar2003/Editorial.htm
TTH, Yes, the little lizard appears to be a day gecko. Thanks for finding that. I appreciate it. I don't like posting the wrong thing. Still cringe when I think about that blue squirrel.
mesquite, I can see the strombus's eyes. I think I can also see its foot. It hops?
