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Table 2 Morphometric comparative table

From: Brain architecture of the largest living land arthropod, the Giant Robber Crab Birgus latro (Crustacea, Anomura, Coenobitidae): evidence for a prominent central olfactory pathway?

Taxon Species ON neuropil volume (μm3) Glomerular volume (μm3) Glomerular number Aesthetasc count Convergence ratio (aesthetasc/glomeruli)
Achelata Panulirus interruptus 344,922,004 287,884 1,202 1,786 1.486
  Panulirus argus 154,068,687 117,862 1,332 1,255 0.942
  Jasus edwardsii 591,956,438 616,475 961 1,537 1.599
Homarida Homarus americanus 141,159,589 591,583 249 1,262 5.068
Astacida Cherax destructor 24,187,019 110,975 230 130 0.565
  Cherax quadricarinatus 24,735,814 74,298 334 237 0.710
  Procambarus clarkii 9,790,377 19,585 503 133 0.264
Thalassinida Callianassa australiensis 6,588,788 28,041 235 22 0.094
Anomura Coenobita clypeatus 120,352,292 153,833 799 519 0.650
  Birgus latro 374,681,700 280,103 1,338 (*780) 1700 (*0.58) 1.27
  Petrolisthes coccnicus 12,359,013 18,947 655 328 0.501
Brachyura Cancer borealis 165,730,818 229,666 733 540 0.737
  Libinia dubia 20,327,317 39,338 454 319 0.703
  Percnon planissimum 28,765,244 58,705 495 555 1.121
  Sesarma sp. 6,617,077 14,887 446 33 0.074
  Uca minax 4,558,497 17,779 284 39 0.137
  Uca pugilator 3,114,604 13,14 234 28 0.120
  Uca pugnax 3,012,080 8,034 374 26 0.070
  1. Means of olfactory neuropil volume, glomerular volume, calculated glomerular number, aesthetasc count and the convergence ratio per hemi-brain adopted from Beltz et al. 2003 [44] except B. latro. (*aesthetasc count adopted from Harms, 1932 [7]).