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Copris Isidis, sexual differences of. Copris lunaris, stridulation of. Corals, bright colours of. Coral-snakes. Cordylus, sexual difference of colour in a species of. Corfu, habits of the Chaffinch in. Cornelius, on the proportions of the sexes in Lucanus Cervus. Corpora Wolffiana, agreement of, with the kidneys of fishes. Correlated variation.

Testa perforata, depresso-convexa, laevigata, nitidiuscula, pallide cornea, basi subcompressa; anfractus 6, planiusculi; spira obtusa; apertura lunaris; peristoma rectum, simplex, margine columellari reflexo: umbilicus minutus, subobtectus. Diam. maj. 8 min. 7 alt. 5 mill.

It occurs about the roots of trees in the Frankland and Lizard Islands. Helix iuloidea. Tab. 2 fig. 4. a, b, c, d. Testa late et perspective umbilicata, orbicularis, superne depressa seu subconcava, rufo-cornea, regulariter costulata; anfractus 4 1/2 convexiusculi, ultimus tumidus, rotundatus; apertura lunaris; peristoma simplex, acutum. Diam. maj. 4 1/2, min. 4, alt. 3 mill.