Subject: APK0004obe

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• by kirstenr

  cydippid or larval lobate? Any hints for telling the two apart?

  Posted May 9, 2014 9:21 PM

• by yshish moderator, translator

  it is a #cydippid, perhaps a #mertensid sp.? the differences, hmm.. lobates appears quite opaque and without tentacles when adult.

  Posted May 9, 2014 9:40 PM

• by yshish moderator, translator

  but cydippids can have the tentacles retracted. @bgrassian will be able to tell you better than me:) hope he'll show up soon to answer you.

  Posted May 9, 2014 9:43 PM

• by bgrassian scientist

  yes this is a #cydippid (Metensid sp. for sure!)... the body is acorn shaped and there are two tentacles visible here

  Posted May 10, 2014 3:53 PM

• by bgrassian scientist

  the lobate species of ctenophores are in general more spherical than ovular/acorn shaped. they also do not have tentacles ...cont ->

  Posted May 10, 2014 3:54 PM

• by bgrassian scientist

  and also, the lobes used for foraging are visible, either making the body appear divided (think pac-man!) or are pressed together making...

  Posted May 10, 2014 3:55 PM

• by bgrassian scientist

  it appear like two outward appendages on the bottom/oral end of the critter. in general on the site, the lobates tend to be bigger

  Posted May 10, 2014 3:56 PM

• by bgrassian scientist

  try searching #lobate on boards and see the guys that were tagged! ( =

  Posted May 10, 2014 3:57 PM

• by yshish moderator, translator

  comprehensive answer, thanks!

  Posted May 10, 2014 4:09 PM

• by kirstenr

  1/2
  I guess my question arose from identifying something as a cydippid that turned out to be a larval lobate (wtih tentacles.)

  Posted May 13, 2014 3:51 AM

• by kirstenr

  2/2 My question was: How do you tell LARVAL lobates from cydippids?

  Posted May 13, 2014 3:51 AM

• by bgrassian scientist

  a mertensid ctenophore. Larval lobates can be distinguished from true cydippids with much certainty.

  Posted November 24, 2014 5:24 PM

• by bgrassian scientist

  larval lobates have a "clasped" body, with marked ctene rows extending the whole body,and paird tentacles coming off ...

  Posted November 24, 2014 5:25 PM

• by bgrassian scientist

  ...the aboral end at ~45 degree angles with evenly spaced narrow/small branching tentacles. The body is most useful in the ID

  Posted November 24, 2014 5:26 PM