File:Spherancorae (10.7717-peerj.12515) Fig-15-full.png

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English: Figure 15: Developmental stages of spherancorae.
Formation process of a spherancorae. 1. Initial stages of formation; the chelae origin can still be observed, with a full formed shaft (s) and free alae (al) still visible; 2. Fusion phase; the alae coalesce forming the four shafts; alae’s junction points (jp) are visible (a.); 3. Thickening phase; the shafts start to thicken, and start forming the ridges (r) from which the fimbriae will later develop; 4. Fimbriae development phase; fimbriae start developing on the ridges, while the shafts continue thickening; 5. Fully formed spherancorae, with complete, free fimbriae (f) clearly visible (b.); 5’. Internal view of a spherancorae, visible due to the braking of a shaft; the junction point (jp) of the alae is still visible on the internal side of the shafts as a swelling (c.), while it is observable that fimbriae (f) are mostly free, only attached to the shafts (s) by its base. Scale bar for Figures 1–5 is 20 μm, whereas for figures a., b., and c. is 10 μm. All images were taken from Melonanchora tumultuosa sp. nov. (NHMUK Norman Coll. 1898.5.7.38).
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Source https://doi.org/10.7717/peerj.12515
Author Santín A, Uriz M, Cristobo J, Xavier JR, Ríos P. 2021. Unique spicules may confound species differentiation: taxonomy and biogeography of Melonanchora Carter, 1874 and two new related genera (Myxillidae: Poecilosclerida) from the Okhotsk Sea. PeerJ 9: e12515.
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current18:49, 16 January 2022Thumbnail for version as of 18:49, 16 January 20221,868 × 1,868 (422 KB)Christian Ferrer (talk | contribs){{Information | description ={{en|1= Figure 15: Developmental stages of spherancorae. :Formation process of a spherancorae. 1. Initial stages of formation; the chelae origin can still be observed, with a full formed shaft (s) and free alae (al) still visible; 2. Fusion phase; the alae coalesce forming the four shafts; alae’s junction points (jp) are visible (a.); 3. Thickening phase; the shafts start to thicken, and start forming the ridges (r) from which the fimbriae will later develop; 4....

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