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. 2006 Apr 8;216(10):565–577. doi: 10.1007/s00427-006-0069-4

Table 1.

Overview of the fate of amputated and incised animals

  Cutting level Number of specimens Fully regenerated (%) Days until full regeneration Days until death, if no full regeneration
Transversal amputation
 Anterior regeneration Just anterior of brain 11 81.82 About 2 weeks
Just anterior of eyes 5 0
Anterior half of pharynx 7 0 More than 9 weeks
Middle of pharynx to gonads 114 0 More than 9 weeks
Tail plate 13 0 Up to 8 days
 Posterior regeneration Posterior end of rostrum 12 0 Up to 3 days
Posterior of eyes 13 0 Up to 3 days
Mid of pharynx 15 0 Up to 6 days
Middle to end of pharynx 35 14.29 About 25 days Up to 16 days
End of pharynx, a little bit of gut 50 58 About 3 weeks Up to 14 days most within 7 days
Possibly anterior tip of testes 11 90.91 About 17 days 2 days
Mid of gonads 5 100 About 2 weeks
Tail plate 32 100 6–10 days
Juveniles oblique amputation
 Two-sided regeneration Posterior of eyes and at tail plate 6 0 More than 3 weeks
In rostrum and at gonad level 1 100 About 4 weeks
 Repeated regeneration Between testes and tail plate 20 100 Cut 29 times during 12 months
 Posterior regeneration Half of body to tail plate 24 0.63 2–4 weeks
 Anterior regeneration Between eyes 9 0
 Posterior regeneration Between eyes 9 0 Up to 3 days
Longitudinal incision
 Anterior regeneration Cut symmetrically 19 36.84 About 1 week
Cut asymmetrically 28 39.29 About 1 week
Posterior regeneration Cut symmetrically 13 53.85 About 1 week
Cut asymmetrically 15 40 About 1 week