ANONYMOUS (1996b) Salmonella in Livestock Production. Addlestone,

Veterinary Record (1998) 143, 354-356 An ocular disease ophthalmoscopically identical to collie eye anomaly (CEA) is described in the Lancashire heeler breed of terrier. Survey work completed in 1996 demonstrated a sig-nificant incidence of 13i7 per cent. The clinical findings together with initial pedigree analysis support the accepted view that, in the traditionally affected breeds, CEA is a true pleiomorph which segregates as a recessive Mendelian trait. Alternative hypothesis speculates that the several lesions ascribed to CEA may occur as separate congenital disease entities, each with its own mode of inheritance. However, the combination of bilateral chloroidal hypoplasia, papillary or peripapillary coloboma and neuroretinal non-attachment in a non-collie breed tends to confirm that these three lesions ar