. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 476 Bulletin Museum of Comparative Zoology, Vol. 147, No. 11. Figure 17. Vent'al (AMS 21434). view of the skull of C. parkeri Hatching under natural conditions appears to occur at a carapace length of about 35 mm. A recent hatchling caught by Parker at Sigabaduru on January 17 measured 36 mm, while another from Balumuk, caught on February 19, measured 37 mm. C. siebenrocki apparently occurs sympat- rically with CJwlodina novaeguineae, Emy- dura subglobosa and Elseya novaeguineae, and possibly Carettochelys insculpta a
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 476 Bulletin Museum of Comparative Zoology, Vol. 147, No. 11. Figure 17. Vent'al (AMS 21434). view of the skull of C. parkeri Hatching under natural conditions appears to occur at a carapace length of about 35 mm. A recent hatchling caught by Parker at Sigabaduru on January 17 measured 36 mm, while another from Balumuk, caught on February 19, measured 37 mm. C. siebenrocki apparently occurs sympat- rically with CJwlodina novaeguineae, Emy- dura subglobosa and Elseya novaeguineae, and possibly Carettochelys insculpta and Pelochelys bibroni. DISCUSSION Nomenclature. The major nomenclatorial problem involving C. siebenrocki has re- sulted from the belief that Chelodina ob- longa, a distinct species endemic to southwestern Australia, extends as far north as northern Australia and islands south of New Guinea. Gray (1844) referred a spec- imen from Port Essington (Darwin) in the Northern Territory of Australia to C. ob- longa, while Strauch (1890) and Schenkel (1901) added to the confusion by reporting C. oblonga from Prince of Wales Island and Thursday Island, both in the Torres Strait near the northern Australian coast. These three localities are all within the range of C. rugosa. Finally, Siebenrock. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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