The longest running Amphibian Community on the Internet.

Tags Register FAQ Calendar Search Today's Posts Mark Forums Read Caudata.org Store


Sexing Aneides lugubris

This is a discussion on Sexing Aneides lugubris within the Plethodontids and Lungless Salamanders (Bolitoglossa, Eurycea, Plethodon, etc.) forums, part of the Species, Genus & Family Discussions category; Hello, Could anyone supply any tips on sexing A.lugubris and maybe some related images. Thanks Warren...

Plethodontids and Lungless Salamanders (Bolitoglossa, Eurycea, Plethodon, etc.) The largest, and one of the most diverse groups of salamanders, these salamanders have all evolved to breathe solely through their skin and are found almost exclusively in North America.

Reply

 

LinkBack Thread Tools Display Modes
Old 25th June 2012   #1 (permalink)
Junior Member
 
Join Date: Jan 2011
Nationality:
Location: [ Members Only ]
Posts: 6
Gallery Images: 0
Comments: 0
Rep: Warren Spencer is an unknown quantity at this point
Default Sexing Aneides lugubris

Hello,
Could anyone supply any tips on sexing A.lugubris and maybe some related images.
Thanks
Warren



Warren Spencer is offline   Reply With Quote
Old 26th June 2012   #2 (permalink)
Prolific Member
 
Join Date: Sep 2010
Nationality:
Location: [ Members Only ]
Posts: 893
Gallery Images: 0
Comments: 8
Rep: FrogEyes is considered an Authority at Caudata.orgFrogEyes is considered an Authority at Caudata.orgFrogEyes is considered an Authority at Caudata.orgFrogEyes is considered an Authority at Caudata.orgFrogEyes is considered an Authority at Caudata.orgFrogEyes is considered an Authority at Caudata.orgFrogEyes is considered an Authority at Caudata.orgFrogEyes is considered an Authority at Caudata.orgFrogEyes is considered an Authority at Caudata.orgFrogEyes is considered an Authority at Caudata.org
Default Re: Sexing Aneides lugubris

Mature male plethodontids have mental glands.
Mature male plethodontids have papillose cloacal lips [ie rougher in males than females].

By and large in the animal kingdom, males are identified by distinctive features they possess as sexually mature adults. Females are identified by not being sexually mature males [but often the same size or larger]. Among amphibians, mature females will often have eggs or swollen ovaries visible through the abdomen.



FrogEyes is offline   Reply With Quote
Old 26th June 2012   #3 (permalink)
Member
 
otolith's Avatar
 
Join Date: Dec 2009
Nationality:
Posts: 459
Gallery Images: 0
Comments: 0
Rep: otolith is a well respected, valued and knowledgeable member of Caudata.orgotolith is a well respected, valued and knowledgeable member of Caudata.orgotolith is a well respected, valued and knowledgeable member of Caudata.orgotolith is a well respected, valued and knowledgeable member of Caudata.orgotolith is a well respected, valued and knowledgeable member of Caudata.orgotolith is a well respected, valued and knowledgeable member of Caudata.org
Default Re: Sexing Aneides lugubris

Large mature A. lugubris males will often have much larger, wider heads with well developed glands. They are also generally thinner (at least in wild individuals); the head is typically wider than the body.

This site has numerous pictures that show the differences.

Aneides lugubris - Arboreal Salamander



otolith is offline   Reply With Quote
Old 20th November 2012   #4 (permalink)
Member
 
bewilderbeast's Avatar
 
Join Date: Apr 2009
Nationality:
Location: [ Members Only ]
Posts: 190
Gallery Images: 2
Comments: 4
Rep: bewilderbeast is a well respected, valued and knowledgeable member of Caudata.orgbewilderbeast is a well respected, valued and knowledgeable member of Caudata.orgbewilderbeast is a well respected, valued and knowledgeable member of Caudata.orgbewilderbeast is a well respected, valued and knowledgeable member of Caudata.orgbewilderbeast is a well respected, valued and knowledgeable member of Caudata.orgbewilderbeast is a well respected, valued and knowledgeable member of Caudata.org
Default Re: Sexing Aneides lugubris

Male Aneides of all species have larger heart shaped heads.



bewilderbeast is offline   Reply With Quote
Old 26th November 2012   #5 (permalink)
Caudata.org Donor
 
taherman's Avatar
 
Join Date: Aug 2007
Nationality:
Location: [ Members Only ]
Posts: 362
Gallery Images: 1
Comments: 1
Rep: taherman is considered an Authority at Caudata.orgtaherman is considered an Authority at Caudata.orgtaherman is considered an Authority at Caudata.orgtaherman is considered an Authority at Caudata.orgtaherman is considered an Authority at Caudata.orgtaherman is considered an Authority at Caudata.orgtaherman is considered an Authority at Caudata.orgtaherman is considered an Authority at Caudata.orgtaherman is considered an Authority at Caudata.orgtaherman is considered an Authority at Caudata.org
Default Re: Sexing Aneides lugubris

Quote:
Originally Posted by bewilderbeast View Post
Male Aneides of all species have larger heart shaped heads.
Actually this characteristic is extremely subtle in Aneides aeneus and is not a very good indicator like it is in the western species.

Sexing Aneides is much harder than I would have expected from reading the literature, particularly in young animals.



taherman is offline   Reply With Quote
Old 28th December 2012   #6 (permalink)
Member
 
Join Date: Nov 2012
Nationality:
Location: [ Members Only ]
Posts: 40
Gallery Images: 0
Comments: 0
Rep: Lugubris has given good advice and informationLugubris has given good advice and informationLugubris has given good advice and information
Default Re: Sexing Aneides lugubris

I agree, sexing A. lugubris can be pretty tricky, especially if they are not fully mature. I have two which are about 2 and 3 years old, even though I have had them for over a month I am not sure what sex they are. My plan is to wait for the fast approaching breeding season and check for a mental gland under the chin. Here is a link for sexing caudates, they have a picture of a mental gland near the bottom:

Caudata Culture Articles - Sexing

Also, in the link provided by otolith, there is a picture of a group of A. lugubris estivating (over the picture of the person bleeding). I believe the large salamander in the lower center is a male, as it has a wide, heart-shaped head. This makes me think both of my specimens are female, as they have much more slender heads, although my 2 year old is most likely too young to determine yet.



Lugubris is offline   Reply With Quote
Reply

LinkBack
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads

Thread Thread Starter Forum Replies Last Post
looking for Aneides lugubris MikeM Wanted in the USA 0 6th March 2009 02:28
Aneides lugubris russ Photo & Video Gallery 0 17th April 2004 12:48
Aneides lugubris brian Plethodontids and Lungless Salamanders (Bolitoglossa, Eurycea, Plethodon, etc.) 5 28th February 2004 23:09


All times are GMT. The time now is 09:36.