suranal

sur- +‎ anal

suranal (comparative more suranal, superlative most suranal)

1. Above the anus or a body part associated with the anus.
   • 1977, Bulletin of the British Museum (Natural History).: Geology series:

     There are three suranal plates, two along the axis connecting ambulacrum III with interambulacrum 5, and one to the right of this axis, towards ocular plate II.

   • 1978, Israel Journal of Entomology - Volumes 12-14, page 94:

     The species which have suranal ducts are in genera that have frame ducts in the second-stage males, and therefore have been found consistentiy only in the Chionaspidini.

   • 1990, Otakar Kudrna, Introduction to Lepidopterology, →ISBN, page 91:

     Confusion may occur with some Saturniidae - which however, have biordinal crochets (usually triordinal in butterfly larvae with scoli) - also no scoli on the head and no suranal 'tails'.

   • 2006, James T. Costa, The Other Insect Societies, →ISBN, page 654:

     Larvae use setiform thoracic legs and a suranal hook to help propel themselves along, aided by silk.

• Narulas, Ruslana, ranulas