Volume 5: Elapid Key ID Flashcards
(108 cards)
Genera Key
Row of scales between eye and upper labials?
A: Yes.
Acanthophis
Genera Key
Row of scales between eye and upper labials?
A: No.
Anal scale Single or Divided?
Genera Key
Anal scale Single or Anal scale Divided?
A: Single.
Subcaudal scales Divided or Single?
Genera Key
Anal scale Single or Divided?
A: Divided.
All subcaudals Single, or some subcaudals Divided?
Genera Key
Subcaudal scales Divided or Single?
A: Divided.
Oxyuranus.
Genera Key
Subcaudal scales Divided or Single?
A: Single.
Dorsal scales Smooth or Keeled?
Genera Key
Dorsal scales Smooth or Keeled?
A: Smooth.
Lips Barred or Unbarred?
Genera Key
Dorsal scales Smooth or Keeled?
A: Keeled.
Tropidechis.
Genera Key
Lips Barred or Unbarred?
A: Barred.
Midbody scales 19-21 or 17?
Genera Key
Lips Barred or Unbarred?
A: Unbarred.
Lower secondary temporal scale much Longer Than High
OR
Lower secondary temporal scale As High As Long
Genera Key
Midbody scales 19-21 or 17?
A: 19-21.
Hoplocephalus.
Genera Key
Midbody scales 19-21 or 17?
A: 17
Denisonia.
Genera Key
Lower secondary temporal scale much Longer Than High
OR
Lower secondary temporal scale As High As Long
A: Lower secondary temporal scale much Longer Than High.
Notechis
Genera Key
Lower secondary temporal scale much Longer Than High
OR
Lower secondary temporal scale As High As Long
A: Lower secondary temporal scale As High As Long
Midbody scales 19 or more, or if 15, then Head Prominently Marked with Dark Spots.
OR
Midbody scales 15, Head Unspotted.
Genera Key
Midbody scales 19 or more, or if 15, then Head Prominently Marked with Dark Spots.
OR
Midbody scales 15, Head Unspotted.
A: Midbody scales 19 or more, or if 15, then Head Prominently Marked with Dark Spots.
Suta.
Genera Key
Midbody scales 19 or more, or if 15, then Head Prominently Marked with Dark Spots.
OR
Midbody scales 15, Head Unspotted.
A: Midbody scales 15, Head Unspotted.
Black Hood on Head, much darker than back, with Pale Notch in front of each eye.
OR
No Black Hood on Head, or if present, then Continuous with a Prominent Dark Vertebral Stripe; rarely a pale notch in front of each eye.
Genera Key
Black Hood on Head, much darker than back, with Pale Notch in front of each eye.
OR
No Black Hood on Head, or if present, then Continuous with a Prominent Dark Vertebral Stripe; rarely a pale notch in front of each eye.
A: Black Hood on Head, much darker than back, with Pale Notch in front of each eye.
Parasuta.
Genera Key
Black Hood on Head, much darker than back, with Pale Notch in front of each eye.
OR
No Black Hood on Head, or if present, then Continuous with a Prominent Dark Vertebral Stripe; rarely a pale notch in front of each eye.
A: No Black Hood on Head, or if present, then Continuous with a Prominent Dark Vertebral Stripe; rarely a pale notch in front of each eye.
Cryptophis.
Genera Key
All subcaudals Single, or some subcaudals Divided?
A: All Single.
Hemiapsis.
*Occasional individuals of Pseudechis with all single subcaudals would erroneously key out to Hemiapsis.
Genera Key
All subcaudals Single, or some subcaudals Divided?
A: Some subcaudals Divided.
All subcaudal scales Divided (at most a few Single anteriors)
OR
At least 20% of subcaudals Single.
Genera Key
All subcaudal scales Divided (at most a few Single anteriors)
OR
At least 20% of subcaudals Single.
A: All subcaudal scales Divided (at most a few Single anteriors)
Subcaudal scales Fewer than 35 Pairs?
OR
Subcaudal scales More than 35 Pairs?
Genera Key
All subcaudal scales Divided (at most a few Single anteriors)
OR
At least 20% of subcaudals Single.
A: At least 20% of subcaudals Single.
Pseudechis.
*Occasional individuals of Pseudechis with all single subcaudals would erroneously key out to Hemiapsis.
Genera Key
Subcaudal scales Fewer than 35 Pairs?
OR
Subcaudal scales More than 35 Pairs?
A: Subcaudal scales Fewer than 35 Pairs?
Black and White Rings around body?
OR
Bands present or absent but no rings encircling body?
Genera Key
Subcaudal scales Fewer than 35 Pairs?
OR
Subcaudal scales More than 35 Pairs?
A: Subcaudal scales More than 35 Pairs?
Nasal and preocular scales in Contact?
OR
Nasal and preocular scales Separated by contact between prefrontal and upper labial scales?