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Fig. 39 in Hydromedusae observed during night dives in the Gulf Stream
Fig. 39. Aequorea forskalea. (A) Living medusa from Norway, bell margin seen from oral side. Photo courtesy of Luis Martell, sample HYPNO 772. (B) Preserved sample from the Mediterranean, MHNG-INVE-0055261.
Fig. 35 in Hydromedusae observed during night dives in the Gulf Stream
Fig. 35. Orchistoma pileus. (A-D) Stomach details. (A) Young animal without gonads, O. collapsum stage, oral view, photo 10- APR-2019. (B) BFLA4183, mature female, bell diameter 26 mm, reticulate radial canals are likely due to a healed damage. (C) BFLA3785, bell size 12 mm, subadult female. (D) BFLA3810, bell diameter 18 mm, male, view from aboral side, note branching of radial canals (stomach diverticula), originating from a H-shaped figure, compare to A. (E) BFLA4383, size 15 mm. (F) BFLA4132, size 34 mm, manubrium likely damaged and in process of regeneration. (G) BFLA4387, size 18 mm.
Fig. 33. Staurodiscus luteus n in Hydromedusae observed during night dives in the Gulf Stream
Fig. 33. Staurodiscus luteus n. spec. (A) Holotype, BFLA4284, 6 mm diameter, oblique view on oral side. (B-F) BFLA3819, size 2-3 mm. (B) Oral view. (C) Oral view. (D) Lateral view. (E) Oblique view on aboral part, note cross-shaped mark of original radial canals. (F) Bell margin from oral side, cordyli and ocelli are visible. (G) Juvenile, 4 mm, oral view, photographed 17- MAY-2020. (H) Photo taken 26-JUL-2018, aboral view.
Fig. 40. Aequorea spec. 1 in Hydromedusae observed during night dives in the Gulf Stream
Fig. 40. Aequorea spec. 1. (A-B) BFLA4163, size> 10 mm. (C) BFLA4163, manubrium. (D) BFLA3814, close up of bell margin. (E) BFLA4163, close up of bell margin. (F) BFLA3814, size 12 mm. (G) BFLA3788, size not recorded. (H) BFLA4002, size 17 mm. (I) BFLA4002, bell margin from oral side, arrow points to excretory papilla. (J) BFLA3781, size 9 mm. (K) BFLA4476, size 5 mm, youngest observed stage with 6 complete radial canals, a large prey item is in the stomach.
Fig. 29. Melicertissa mayeri, BFLA4451, size 10 in Hydromedusae observed during night dives in the Gulf Stream
Fig. 29. Melicertissa mayeri, BFLA4451, size 10 mm. (A) Oblique view of whole animal. (B) Oral view. (C) Bell margin, note cordyli and ocelli.
Fig. 36 in Hydromedusae observed during night dives in the Gulf Stream
Fig. 36. Wuvula ochracea. (A-D) Animal observed 04-JUN-2019, ca. 2.5 mm, different views of the same animal, note beginning gonad development on radial canals. (E) BFLA4392, size 4 mm. (F) BFLA4372, preserved sample, view from adaxial side on a bulb with its appendages. (G) BFLA4470, size 3.5 mm. (H) BFLA4361, size 3.5 mm. (I) Animal observed 16-MAR-2020, not collected, size 4 mm.
Fig. 31 in Hydromedusae observed during night dives in the Gulf Stream
Fig. 31. Staurodiscus kellneri. (A-C) BLFA4050, size 20 mm. (A) Oral view, the oval, white body is a crustacean on the exumbrella. (B) Mouth part. (C) Bell rim, ocelli and cordyli are visible. (D) BFLA4107, size 10 mm, young animal with only nine radial canals reaching the circular canal. (E) BFLA4399, contracted bell, lateral view, size 11 mm. (F) BFLA4399, oral view, not all radial extensions are branched. (G) Animal photographed 12-OCT-2020, 10 mm, juvenile with 9 radial canals. (H) BFLA4242, bell diameter 7 mm, bell margin with bulbs and cordyli.
Fig. 21. 16S in Hydromedusae observed during night dives in the Gulf Stream
Fig. 21. 16S maximum likelihood phylogenetic tree of Zancleidae and related taxa obtained with PhyML (GTR+G model) and based on about 600 bp positions of the mitochondrial 16S gene. Node-support values are bootstrap values of 100 pseudoreplicates (shown only if> 70%). All sequence labels start with the GenBank numbers permitting the retrieval of more information. Red labels are new sequences from this study.
Fig. 18. Zanclea mayeri n in Hydromedusae observed during night dives in the Gulf Stream
Fig. 18. Zanclea mayeri n. spec., living holotype specimen, BFLA4061, bell height 6 mm (A-C) Lateral views. (D) View on umbrella opening. (E) Animal with one tentacle fully extended.
Fig. 27 in Hydromedusae observed during night dives in the Gulf Stream
Fig. 27. Laodicea undulata, all not fully grown. (A-B) BFLA3836, size 6 mm, subadult. (A) Lateral view of whole animal, bell contracted and therefore higher than when relaxed. (B) Aboral view showing bell margin, cirri and cordyli are visible. (C) BFLA3836, size 6 mm. (D) BFLA3812, size 8 mm. (E) BFLA4126, size 10 mm, note the aberrant, branched radial canal.
Fig. 10 in Hydromedusae observed during night dives in the Gulf Stream
Fig. 10. Larsonia pterophylla. (A) BFLA4453, lateral view of animal, size 27 mm. (B) BFLA4453, close up of manubrium in lateral view. (C) Animal photographed 08-AUG-20181 part of bell margin in aboral view showing rudimentary tentacle bulbs (warts).
Fig. 9. Pandeopsis prolifera n in Hydromedusae observed during night dives in the Gulf Stream
Fig. 9. Pandeopsis prolifera n. spec. (A-C) Holotype, BFLA4442, bell height 8 mm. (D-E) BFLA4260, size 5 mm. (A) Lateral view. (B) Bell margin in oral view. (C) Oblique view on aboral part, note shape of manubrium base which is not obviously squareshaped. (D) Lateral view. (E) Oblique view on aboral part, base is square-shaped, some incipient oocytes are visible, food items are in the lumen.
Fig. 7 in Hydromedusae observed during night dives in the Gulf Stream
Fig. 7. Pandeopsis ikarii. (A-C) Specimen BFLA4088, size 2.5 mm, presumable incipient oocytes are visible in the stomach wall. (D) Specimen collected 08-AUG-2018, size 5 mm, the identification is somewhat unreliable as there is no sequence data available.
Fig. 6 in Hydromedusae observed during night dives in the Gulf Stream
Fig. 6. Merga violacea. (A-D) Specimen BFLA4006, bell height 12 mm. (A) Lateral view of whole animal, note that the bell is somewhat contracted and more elongate than normal. (B) Bell margin seen from oral, note the flat abaxial spurs above some of the tentacle bulbs (arrow). (C) Lateral view of stomach. (D) Bell margin, note rudimentary bulbs with short tentacle stumps. (E) Lateral view of younger animal observed 30-Jun-2018, size approximately 7 mm.
Fig. 5 in Hydromedusae observed during night dives in the Gulf Stream
Fig. 5. Cirrhitiara superba, specimen observed in 2018 but not collected. The cirri are barely visible.
Fig. 2. Cytaeis tetrastyla, bell height 2 in Hydromedusae observed during night dives in the Gulf Stream
Fig. 2. Cytaeis tetrastyla, bell height 2 mm. (A) Lateral view, note medusa buds on upper part of manubrium, BFLA4066. (B) Lateral view with focus on the frontal exumbrella showing the typical flared tentacle bases of Cytaeis medusae, BFLA4073. (C) BFLA4069, note green tentacle tips, a colour likely due to interference effects and not pigments.
Fig. 26. Corymorpha floridana n in Hydromedusae observed during night dives in the Gulf Stream
Fig. 26. Corymorpha floridana n. spec (A) Holotype, BFLA4371, bell height 3 mm. (B) 01-APR-2019; photographed but not collected; mature male, 2 mm. (C) 11-MAR-2020; photographed but not collected; 2 mm. (D) BFLA4363; bell height 2 mm. (E) BFLA4362; 2 mm; note that part of the long tentacle and the entire intermediate length tentacle are missing.
Fig. 3. Amphinema turrida, bell height approximately 6 in Hydromedusae observed during night dives in the Gulf Stream
Fig. 3. Amphinema turrida, bell height approximately 6 mm. (A) Lateral view. (B-D) Oblique views from oral side, note the presence of thin cirri.
Fig. 11 in Hydromedusae observed during night dives in the Gulf Stream
Fig. 11. Turritopsis nutricula. (A-C) Specimen BFLA4416, bell height 2 mm. (D) Specimen BFLA4416, 3 mm height. (A) Oblique view of animal. (B) Oral view, note nematocyst clusters along mouth margin and the interradially separated blocks of vacuolated cells at manubrium base. (C) Oblique view. (D) Lateral view, in the background some appendages of a decapod.
Fig. 32 in Hydromedusae observed during night dives in the Gulf Stream
Fig. 32. Staurodiscus tetrastaurus. (A-C) Young animal observed 11-DEC-2017. (D-E) BFLA3831, size 7 mm. Some amphipods are associated with the animal. (F) BFLA4440, size 10 mm, bell margin seen from adaxial side, ocelli are barely visible. (G) BFLA4440, oral view, note variation of position of lateral diverticula.
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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