arachnomelia

arachnomelia

a congenital anomaly in which the distal extremities of the limbs are excessively long and thin, giving the animal a spidery look.

inherited arachnomelia
the bones of the elongated limbs are very fragile and there are additional skeletal and cardiovascular defects in affected calves. In lambs, a semi-lethal inherited congenital chondroplasia of Suffolk and Hampshire sheep with deformities of the limbs and spinal column and muscular atrophy which results in long-legged, deformed limbs. Called spider lambs.
References in periodicals archive ?
Identification of the bovine arachnomelia mutation by massively parallel sequencing implicates sulfite oxidase (SUOX) in bone development.