Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
21
datasets available to search
ShareScore release 0.9.0
Dataset results
21 results for “egg capsule”
Рис. 3. Teratocephalon hexahamus gen. n., sp. n.: A — трофико-сенсорный отΑеΛ теΛа; B — трофико-генитаΛьный отΑеΛ теΛа; C, D — переΑний конец теΛа. a — анус, am — амфиΑы, v — вуΛьва, cc — гоΛовная капсуΛа, ve — «жеΛуΑочек», pu — заΑняя матка, nr — нервное коΛьцо, rc — прямая кишка, au — переΑняя матка, r — ренетта, ep — экскреторная пора, o — яичник, e — яйцо Fig. 3. Teratocephalon hexahamus gen. n., sp. n.: A — trophic-sensory part of the body; B — trophic-reproductive part of the body; C, D — anterior end of the body. a — anus; am — amphids; v — vulva; cc — cephalic capsule; ve — "ventricle"; pu — posterior uterus; nr — nerve ring; pu — anterior uterus; r — renetta; rc — rectum; ep — excretory pore; o — ovary; e — egg in Recent data on soil nematodes of the families Teratocephalidae and Metateratocephalidae from Primorsky Region, Russia
Рис. 3. Teratocephalon hexahamus gen. n., sp. n.: A — трофико-сенсорный отΑеΛ теΛа; B — трофико-генитаΛьный отΑеΛ теΛа; C, D — переΑний конец теΛа. a — анус, am — амфиΑы, v — вуΛьва, cc — гоΛовная капсуΛа, ve — «жеΛуΑочек», pu — заΑняя матка, nr — нервное коΛьцо, rc — прямая кишка, au — переΑняя матка, r — ренетта, ep — экскреторная пора, o — яичник, e — яйцо Fig. 3. Teratocephalon hexahamus gen. n., sp. n.: A — trophic-sensory part of the body; B — trophic-reproductive part of the body; C, D — anterior end of the body. a — anus; am — amphids; v — vulva; cc — cephalic capsule; ve — "ventricle"; pu — posterior uterus; nr — nerve ring; pu — anterior uterus; r — renetta; rc — rectum; ep — excretory pore; o — ovary; e — egg
Рис. 2. Euteratocephalus montanus sp. n.: A — трофико-сенсорый и трофико-генитаΛьный отΑеΛы теΛа; B — хвост; C — трофико-генитаΛьный отΑеΛ теΛа; D — фрагмент теΛа с боковым поΛем; E, F — переΑний конец теΛа. am — амфиΑы, lf — боковое поΛе, v — вуΛьва, va — вагина, g — гемизониΑ, cc — гоΛовная капсуΛа, ve — «жеΛуΑочек», pr — преректум,r — ренетта, f — фазмиΑа,ep — экскреторная пора, o — яичник, e — яйцо Fig. 2. Euteratocephalus montanus sp. n.: A — trophic-sensory and trophic-reproductive parts of the body; B — tail; C — trophic-reproductive part of the body; D — fragment of the body with a side field; E, F — anterior end of the body. am — amphid, lf — lateral field; v — vulva; va — vagina; g — gemizonid; cc — cephalic capsule; ve — "ventricle"; pr — prerectum; r — renetta; f — phasmids, ep — excretory pore; o — ovary; e — egg in Recent data on soil nematodes of the families Teratocephalidae and Metateratocephalidae from Primorsky Region, Russia
Рис. 2. Euteratocephalus montanus sp. n.: A — трофико-сенсорый и трофико-генитаΛьный отΑеΛы теΛа; B — хвост; C — трофико-генитаΛьный отΑеΛ теΛа; D — фрагмент теΛа с боковым поΛем; E, F — переΑний конец теΛа. am — амфиΑы, lf — боковое поΛе, v — вуΛьва, va — вагина, g — гемизониΑ, cc — гоΛовная капсуΛа, ve — «жеΛуΑочек», pr — преректум,r — ренетта, f — фазмиΑа,ep — экскреторная пора, o — яичник, e — яйцо Fig. 2. Euteratocephalus montanus sp. n.: A — trophic-sensory and trophic-reproductive parts of the body; B — tail; C — trophic-reproductive part of the body; D — fragment of the body with a side field; E, F — anterior end of the body. am — amphid, lf — lateral field; v — vulva; va — vagina; g — gemizonid; cc — cephalic capsule; ve — "ventricle"; pr — prerectum; r — renetta; f — phasmids, ep — excretory pore; o — ovary; e — egg
Fig. 3 in Late Cretaceous gastropod egg capsules from the Netherlands preserved by bioimmuration
Fig. 3. Plot of measurements of Late Cretaceous and selected Recent neritid egg capsules (data from Kano and Fukumori 2010).
Fig. 2. A, B in Late Cretaceous gastropod egg capsules from the Netherlands preserved by bioimmuration
Fig. 2. A, B. Late Cretaceous gastropod egg capsules from the late Maastrichtian (Late Cretaceous) of Maastricht, the Netherlands, preserved by bioimmuration (NHMM JJ 13778). A. Aggregate of bioimmured egg capsules, probably the capsule bases, with an eroded basal wall of a cheilostome bryozoan colony, showing the zooid interiors (arrowed) (A1). Close−up view of the egg capsules shown in the centre of A1, with clearly visible outlines of cheilostome zooids within and around the egg capsules, shown by dotted lines (A2). B. Aggregate of presumably unhatched (left) and hatched, in a form of bases (right), egg capsules (B1). The arrow points to the eroded basal wall of a bioimmuring cheilostome bryozoan colony. Close−up views of presumably hatched (B2) and unhatched (B3) egg capsules shown in B1. C. Hatched and unhatched egg capsules of the Recent neritid gastropod species Neritina iris Mousson, 1849, on the shell exterior of a live gastropod Septaria porcellana (Linné, 1758), Kagoshima Bay, Japan (photograph courtesy of Yasunori Kano). Scale bars: A1, B1 1 mm; A2, B2, B3 200 µm; C 5 mm.
Fig. 1. A in Late Cretaceous gastropod egg capsules from the Netherlands preserved by bioimmuration
Fig. 1. A. The internal mould (NHMM JJ 13778) of the volutid gastropod "Volutospina" sp. from the late Maastrichtian (Late Cretaceous) of Maastricht, the Netherlands, with inferred egg capsules preserved by bioimmuration. Arrows drawn onto the specimen indicate the position of the preserved egg capsules. B. Close−up of the anterior area of the mould showing aggregated egg capsules. Scale bars: A 10 mm, B 5 mm.
Fig. 5 in Catshark egg capsules from a Late Eocene deep-water methane-seep deposit in western Washington State, USA
Fig. 5. Thin section micrograph of the capsules wall showing three of the craters produced during laser ablation (arrows).
Fig. 3 in Catshark egg capsules from a Late Eocene deep-water methane-seep deposit in western Washington State, USA
Fig. 3. Thin section micrographs of the capsule wall of the Late Eocene Bear River egg capsule Scyliorhinotheca goederti goederti gen. et sp. nov. A, B. Two sections of a capsule wall with several ribs, dark, micritic seep carbonate on the outside, and several diagenetic carbonate phases in the interior; plane−polarized light. C, D. Close−up on the middle rib in A, rotated ca. 90° clockwise. Note that the capsule wall consists of microsparite, enclosing globular calcite crystals; plane−polarized light (C) and UV light (D). E. Detail of the capsule wall; laser scanning microscope image generated by linear unmixing using the spectra of the globules versus that of the wall matrix. F. Detail of capsule wall, showing extinction of some of the globules; crossed−polarized light.
Fig. 2 in Catshark egg capsules from a Late Eocene deep-water methane-seep deposit in western Washington State, USA
Fig. 2. Silicon rubber casts of external molds of the Late Eocene Bear River egg capsule Scyliorhinotheca goederti gen. et sp. nov. A. USNM 544327 (the same specimen as in Fig. 1). B. USNM 544328.
Fig. 1 in Catshark egg capsules from a Late Eocene deep-water methane-seep deposit in western Washington State, USA
Fig. 1. The Late Eocene Bear River egg capsule Scyliorhinotheca goederti gen. et sp. nov. in different states of preservation. A. Steinkern showing the anterior and posterior ends (USNM 544321). B. Posterior half of a steinkern, showing the tapering end with a horn (USNM 544322). C. Deformed steinkern with spindle−like shape (USNM 544323). D. Steinkern with faint wrinkles on the surface, perhaps due to shrinkage (USNM 544324). E. Two specimens: the lower, main specimen shows the anterior constriction and the flattened anterior end (left) and remnants of the ribbed capsule wall (right); the upper specimen (arrow) is just a cast of a ribbed capsule surface; note relics of worm tubes on the right side of the block (USNM 544325) (image from Treude et al. 2011). F. Steinkern showing indentation on lower left (USNM 544326). G. Cast (external mold) showing ribbing on capsule surface (USNM 544327).
Figure 2 in New insights on the external features of egg capsules and embryo development in the squid Loligo vulgaris
Figure 2. Aspect of the five (I–V) egg capsule stages preserved in 70% ethanol.
Figure 3. Unhatched egg from Jovein population. Head capsule showed embryo movement until day 14 in Developmental differences of local populations of alfalfa weevil (Hypera postica) (Coleoptera: Curculionidae)
Figure 3. Unhatched egg from Jovein population. Head capsule showed embryo movement until day 14.
Fig. 6 in Catshark egg capsules from a Late Eocene deep-water methane-seep deposit in western Washington State, USA
Fig. 6. Pyrite framboids in the egg capsule wall. SEM image of an etched fracture surface.
Fig. 4 in Catshark egg capsules from a Late Eocene deep-water methane-seep deposit in western Washington State, USA
Fig. 4. Raman spectra of globules and microsparitic matrix of the capsule wall.
Does the egg capsule protect against chronic UV-B radiation? A study based on encapsulated and decapsulated embryos of cuttlefish Sepia officinalis
<p>Although the egg capsule plays a crucial role in the embryonic development of cephalopods, its ability to protect embryos from Ultraviolet (UV) radiation is unknown. Our study evaluated the photoprotection mechanisms of <em>Sepia officinalis</em> to UV-B radiation and estimated the ability of the black capsule to act as a physical shield against it. Embryos with (BC) and without capsule (WC) and juveniles were exposed to four experimental UVB conditions for 55 days. The effects of different UVB doses were evaluated in terms of morphological abnormalities and differences in gene expression between each group. We observed that the development might be severely impaired in embryos exposed to UVB without capsule protection and these effects were time- and UVB-dose-dependent. In addition, we found variations in gene expression levels (light-sensitive, stress response, and DNA repair) in different tissues as a function of UVB doses. We suggest a relationship between morphological abnormalities and the limit of molecular regulation. These results suggest that the quantitative differences in expression are essential for defining the survivability of the embryo face to UVB. Thus, we demonstrated that the egg capsule could ensure successful embryonic development of the cuttlefish <em>S. officinalis</em> even at high doses of UVB.</p>
Does the egg capsule protect against chronic UV-B radiation? A study based on encapsulated and decapsulated embryos of cuttlefish Sepia officinalis
Open the record for dataset details and reuse information.
FIGURE 14. Echinolittorina natalensis. A–G, penes. H, pallial oviduct. I, J, paraspermatozoa. K–M, pelagic egg capsules. A in The genus Echinolittorina Habe, 1956 (Gastropoda: Littorinidae) in the Indo-West Pacific Ocean
FIGURE 14. Echinolittorina natalensis. A–G, penes. H, pallial oviduct. I, J, paraspermatozoa. K–M, pelagic egg capsules. A, Amanzimtoti, Kwazulu-Natal, South Africa (BMNH 20040211; shell H = 6.3 mm). B, C, Ankarena, Île Ste Marie, Madagascar (BMNH 20030679; shell H B = 10.8 mm, C = 10.5 mm). D, E, K–M, North Pier, Durban, South Africa (BMNH 20040210; shell H D = 10.0 mm, E = 9.4 mm). F, I, J, Oysterbay, Dar-es-Salaam, Tanzania (BMNH 20040212; shell H = 6.5 mm). G, H, Libanona Beach, Tolagnaro, Madagascar (BMNH 20030691; shell H G = 7.8 mm, H = 10.0 mm). Shading conventions as in Figure 3.
FIGURE 4. Echinolittorina meleagris. A–G, penes. H, head. I, J, pallial oviducts. K–M, egg capsules. N–P, paraspermatozoa. A–C, H, K–P in The genus Echinolittorina Habe, 1956 (Gastropoda: Littorinidae) in the western Atlantic Ocean 2184
FIGURE 4. Echinolittorina meleagris. A–G, penes. H, head. I, J, pallial oviducts. K–M, egg capsules. N–P, paraspermatozoa. A–C, H, K–P, Sebastian Inlet, Brevard Co., Florida, USA (BMNH 20080958; shell H A = 5.3 mm, B = 4.4 mm, C = 5.4 mm, H = 4.4 mm). D, E, Lucea Bay, Jamaica (BMNH 20080959; shell H D = 4.3 mm, E = 3.7 mm). F, J, Tulum, Quintana Roo, Mexico (BMNH 20080965; shell H F = 5.1 mm, J = 6.4 mm). G, Burt Point, Readtown, Tortola, British Virgin Islands (ANSP A7222; shell H = 4.0 mm). I, Colon I., Bocas del Toro, Panama (BMNH 20080966; shell H = 5.0 mm). Shading conventions as in Figure 15.
FIGURE 28. Echinolittorina angustior. A–G, penes. H, pallial oviduct. I, J, egg capsules. K–M, paraspermatozoa. A, B, G, I–K in The genus Echinolittorina Habe, 1956 (Gastropoda: Littorinidae) in the western Atlantic Ocean 2184
FIGURE 28. Echinolittorina angustior. A–G, penes. H, pallial oviduct. I, J, egg capsules. K–M, paraspermatozoa. A, B, G, I–K, Fort Pierce Inlet, St Lucie Co., Florida, USA (BMNH 20081035; shell H A = 7.7 mm, B = 8.9 mm, G = 8.0 mm). C, D, M, Rocky Bay, Devonshire, Bermuda (BMNH 20081036; shell H C = 10.4 mm, D = 7.1 mm). E, Playa Huertas, Portobelo, Panama (BMNH 20081033; shell H = 11.3 mm). F, L, La Toc Beach, St Lucia (BMNH 20081034; shell H = 8.0 mm). H, Fort Pierce Inlet, St Lucie Co., Florida, USA (BMNH 20081026; shell H = 12.3 mm). Shading conventions as in Figure 15.
Figure 4 in New insights on the external features of egg capsules and embryo development in the squid Loligo vulgaris
Figure 4. Comparison of the chronological appearance of selected organs in seven loliginid species from previous studies (Arnold 1965; Segawa et al. 1988; Baeg et al. 1992; Guerra et al. 2001; Barón 2002) and the present study. The embryonic stages of Arnold were used because these stages were employed in previous comparisons (Guerra et al. 2001). Abbreviations: EC, eye vesicle closed; EI, eye vesicle invagination begins; FF, funnel formation begins; HO, Hoyle's organ appears; IS, ink sack appears; PED, fully establish eyelid; PL, primary lip; PS, primordia of suckers appear; PSG, primordia of shell gland appear; RP, retinal pigmentation begins; SGC, shell gland closed; ST, statocyst first presence; and VCH, ventral mantle chromatophores appear.
Figure 3 in New insights on the external features of egg capsules and embryo development in the squid Loligo vulgaris
Figure 3. Embryonic development stages proposed in this study (Arabic numerals) compared with the stages of Naef (Roman numerals), 30× natural size for microphotographs 1–8. Scanning electron microphotography of an embryo at stage 8 (bottom right side). Details showing the closure of the eyelid fold with a small pore (top right side).
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.