This form includes verbal or speech developmental apraxia, perhaps the most common form of the disorder. Constructional apraxia affects the person's ability to draw or copy simple diagrams or to construct simple figures. Oculomotor apraxia is a condition in which patients find it difficult to move their eyes.
Medium ones about the size of a golf ball may molt every four to six months and stay buried for about one to three months. The smaller hermit crabs may molt as often every month or even every few weeks for the tiniest ones, and may stay buried to do it for only a couple of weeks or months.
Technically hermit crabs have 10 legs including the chelipeds. 2nd &3rd pair - walking legs used for movement. Gonopores are located at the base of the 3rd pair of legs on a female. 4th pair - stubby looking legs used to move in and out of shell. 5th pair - gill grooming appendages that end in pinchers for cleaning the gills and removing excrement from the shell. Male crabs have tufts of hair concealing openings at the base of the 5th pair of legs.