Abstract: Two hundred snails of various sizes consisting of hundred each of the black-skinned ectotype and white-skinned ectotype were used for this study. Body components measured were body weight, body shell length, body shell width, mouth shell length and mouth shell width for the two ectotypes. The number of whorls on snail shell considered for the study were 2, 3, 4 and 5. Data were analyzed using t-test and the results showed that all the body components between the two ectotypes were significantly different (p<0.05) based on the number of whorls. The white-skinned ectotype recorded higher percent body component increment for snails between 2 and 3 whorls, whereas the black-skinned snails recorded higher percent body component increment for snails with 3 and 4 whorls. This means that the two ectotypes besides their differences in foot colouration varied in terms of growth of body components. It is therefore suggested that both ectotypes of Archachatina marginata S.) should be tested for differentiation in growth of body components with higher number of whorls, as this will be very beneficial to breeders for genetic improvement of the snail.