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Figure 4 | Frontiers in Zoology

Figure 4

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?

Figure 4

2nd part of a dorsal to ventral series of vibratome sections (100 μm) triple labeled for the nuclear marker (NUC; blue), synapsin immunoreactivity (SYN; red) and allatostatin-like immunoreactivity (AST; green) (A and C) and series of silver impregnated microtome sections (10 μm) of an equivalent horizon (B and D). A to D: Photomontages of 2 × 3 pictures per slice. Corresponding pictures of equivalent horizons are shown in A and B and further ventrally C and D. Roman numerals III and IV identify unstructured neuropils; numbers 6, 10, 9/11 and 16 identify cell clusters. Other abbreviations: Arrowheads, single ASTir neurons; AIINv, antenna II nerve; AMPN, anterior medial protocerebral neuropil; AnN, antenna II neuropil; CB, central body neuropil; DCF, deutocerebral commissural fibers; HN, hemiellipsoid neuropil; LAN, lateral antenna I neuropil; Lo, lobula; M, medulla; MAN, median antenna I neuropil; mF, median foramen; DO, deutocerebral organ; OGT, olfactory globular tract; OGTN, olfactory globular tract neuropil; OGTNa, accessory olfactory globular tract neuropil; ON, olfactory neuropil (olfactory lobe); PB, protocerebral bridge; pF, posterior foramen; PMPN, posterior medial protocerebral neuropil; PT, protocerebral tract; TM, terminal medulla; X, chiasm of the OGT. Scale bar = 500 μm.

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