Reptile & Amphibian Forums

Now this should be a tuff one, I will tell you up front that it is not a hybrid ... good luck!!

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Click Here To Email Donny039

Phillipine (mindorensis). That is a toughter one.

Not 100 % sure, but: C.novaeguineae ?

Yes New Guinea Crocodile, but actually this the the "odd" Northern.

This crocodile although dubbed (C. novaguineae) is in fact its own species and is due to be given its own scientific name soon.

It is said that the Northern New Guinea may actually be C. ranius
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Click Here To Email Donny039

Hi Donny, I was not really sure but a little bit lucky, I guess.
I´m in doubt about the "raninus" - hypothesis, but I am very interested in the description of the Northern novaeguineae as a
"true" species
Link

Hi Ralf, The croc in that picture is a New Guinea at St Augustine Alligator farm.

John Brueggen at SAAF was the one to tell me about this crocodile years ago, he said it was said to be a (C. novaguineae) from the Nother population but he had his doubts about it just being a differant locality.

Not to long ago John told me that this "odd" Crocodile is from Northern New Guinea but it has been proven to be its own species, and further this crocodile is said to receive full species status and its own scientific name very soon.

I have heard many stories about (C. raninus) but have always had my doubts also, I read a interesting article on a Croc DNA website that perhaps may have changed my mind or at least opened my mind to C. raninus and the "odd" Northern Newguinea crocodile

I will post the part of the article below that I am talking about and I will post a link to the website in case anyone is interested in further information.

"The Indo-Pacific is home to four recognized species of freshwater Crocodylus, two of which (C.siamensis and C.mindorensis) are now critically endangered in the wild. A putative new species (C.raninus) has been recently described from Borneo, and the status of some populations of C.novaeguineae and C.siamensis is uncertain. Management of the recovery of species in decline and of the sustainable use of other species will benefit from the resolution of the taxonomic uncertainty within and among species. Maximum likelihood phylogenetic analyses of mtDNA ND4, control region and tRNA sequence data (1638bp) revealed support for a clade comprising C.johnstoni, C.novaeguineae and C.mindorensis, and strongly supported the recognition of C.novaeguineae and C.mindorensis as full sister species. Moderate support was also revealed for a clade comprising C.palustris and C.siamensis, along with the estuarine crocodile C.porosus. A single specimen of the purported Bornean lacustrine crocodile C.raninus was identical to C.novaeguineae from northern New Guinea. This suggests C.raninus is either an incipient species recently established in Borneo (within the last Quaternary glacial cycle), or it is synonymous with C.novaeguineae. The identification and analysis of a wild population of C.raninus in Kalimantan would help to further clarify the status of this taxon.

Phylogeographic analyses of C.novaeguineae and C.siamensis control region sequences (550bp) revealed uniformly low intraspecific diversity, but significant levels of population structure. Populations of C.novaeguineae from northern and southern New Guinea, distinct morphologically and in aspects of reproductive biology, were reciprocally monophyletic, but mean divergence between populations was minimal. No sub-structuring was evident within populations. Nested clade analysis indicated recent long-distance colonisation of the Gulf of Papua from northern PNG. The conservation implications of these findings will be discussed. The population of C.siamensis in the Mahakam River, eastern Kalimantan, formed a distinct lineage relative to mainland Asian populations in Cambodia and Vietnam. However, whether this population is relictual or re-introduced will require more extensive sampling of surviving populations in Southeast Asia. "
link to the website

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Click Here To Email Donny039

I've been looking at this speciamen at SAAF for several years. For a while the park wasn't sure what species it was or if it was a curious hybrid. He certainly is distinctive. That snout especially doesn't appear characteristic of c. novaeguineae.
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Israel Dupont
Winter Haven, FL

i cant see the image

Well it was there ... I dont know what happened to it ???
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Click Here To Email Donny039

I was going to mention something but at that time, everyone else was seeing it. So I figured it was just a prob. with my computer.

Yea, sorry .. I guess I have bad luck when it comes to posting pictures!!

KS should make it so we can browse our computer pictures and post in a add rather than to use the photo gallery, it would make posting pictures a lot easier
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Click Here To Email Donny039

.

Right click on the "X" box, click properties, then copy and past URL to your browser.

Hope that helps.

regards,

Rob

>>i cant see the image