The Victorian naturalist . hort-necked tortoise. Themorphological changes recorded inthe various sizes of this species canbe roughly divided into three. (a) Hatchling, 24-33 mm (0-94-1-3 in.), carapace length to 130 mm(4-5 in.): Carapace roughly circularin shape, marginals dentated, verte-brals strongly keeled. (b) Intermediate, 130 to 230 mm(5-9 in.) carapace length: Carapacebecomes elongated, considerably ex-panded at rear. Rim becomes smooth,shell becomes deeper with maximumdepth occurring about one third itslength from the front, the carapacethen falling away rapidly to the pos-terior marg


The Victorian naturalist . hort-necked tortoise. Themorphological changes recorded inthe various sizes of this species canbe roughly divided into three. (a) Hatchling, 24-33 mm (0-94-1-3 in.), carapace length to 130 mm(4-5 in.): Carapace roughly circularin shape, marginals dentated, verte-brals strongly keeled. (b) Intermediate, 130 to 230 mm(5-9 in.) carapace length: Carapacebecomes elongated, considerably ex-panded at rear. Rim becomes smooth,shell becomes deeper with maximumdepth occurring about one third itslength from the front, the carapacethen falling away rapidly to the pos-terior margin. Throughout this stage,the vertebral keeling diminishes withgrowth until, at 230 mm, it is notpresent. (c) Adult, exceeding 300 mm cara-pace length: Carapace depth extendsto give maximum depth almost con-stantly from one-third to two-thirds ofits length. The posterior of the shellis still broad but the anterior half ofthe carapace has also broadened togive a width in front almost equal tothat behind. September, 1968 263. (a) Hatchlings (i) (ii) (iii)


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Keywords: ., bookcentury1800, bookdec, booksubjectnaturalhistory, bookyear1884