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26 results for “Coluber”
Fig. 3. Coluber dolnicensis Szyndlar, 1987 in The oldest known Miocene snake fauna from Central Europe: Merkur-North locality, Czech Republic
Fig. 3. Coluber dolnicensis Szyndlar, 1987 from the Early Miocene (MN 3a) of Merkur−North. A1, A2. Left dentary (SGDB Ah−12). B1, B2. Right compound bone (SGDB Ah−l 4). C. Left compound bone (SGDB 7408/MI−9). D1–D4. Cervical vertebra (SGDB 7408/MI−5). E1–E5. Trunk vertebra (SGDB 7408/MI−7). F1–F3. Caudal vertebra. In labial (A1, B1), lingual (A2, B2, C), lateral (D1, E1), dorsal (D2, E2, F1), ventral (D3, E3, F2), cranial (D4, E4, F3), and caudal (E5) views. Scale bar 2 mm.
FIG. 2 in Jean Hermann, l'holotype et le néotype de la Couleuvre de Montpellier, Coluber monspessulanus Hermann, 1804 (Reptilia, Squamata)
FIG. 2. — Extrait du registre manuscrit des collections de Jean Hermann, annoté par son gendre Frédéric Louis Hammer puis par quelques autres conservateurs, où est inscrit Coluber monspessulanus Hermann, 1804. Roubioux = Roubieu. Noter qu'un second spécimen est enregistré, reçu de Marseille. Archives de la Ville et de l'Eurométropole de Strasbourg, Notes manuscrites de Jean Hermann et Frédéric Louis Hammer sur l'histoire naturelle, etc., section Catalogue des reptiles et classement par familles (88 Z 26c, folio 704). Abréviations: C.H., Collection Hermann; Daud., Daudin; De Lac., De Lacepède; emp., empaillée; Ṽ,?; v. H. obs. zool., voir Hermann Observationes Zoologicae. Photographie: Margot Zinck.
FIG. 1 in Jean Hermann, l'holotype et le néotype de la Couleuvre de Montpellier, Coluber monspessulanus Hermann, 1804 (Reptilia, Squamata)
FIG. 1. — Description originale en latin de Coluber monspessulanus par Hermann (1804: 283). La traduction libre est dans le texte, voir ci-dessous. Extrait de l'exemplaire de la Collection patrimoniale des bibliothèques de l'Université de Strasbourg.
FIG. 3 in Jean Hermann, l'holotype et le néotype de la Couleuvre de Montpellier, Coluber monspessulanus Hermann, 1804 (Reptilia, Squamata)
FIG. 3. — Spécimen néotype de Coluber monspessulanus Hermann, 1804, no. BEV 10354, actuellement no. MNHN-RA-2016.104, longueur totale 126,4 cm: A, vue dorsale; B, vue ventrale; C, vue latérale de la tête, côté gauche; D, vue latérale de la tête, côté droit; E, vue dorsale de la tête; F, vue ventrale de la tête. À noter sur C la valve (comprenant 2 clapets) de la narine gauche, partiellement ouverte, et sur D celle de la narine droite, complètement fermée. Grâce à cette dernière on distingue, sur le clapet principal, le menu débouché d'une glande nasale spéciale, pour l'application sur le ventre « par auto-frottement avec le museau » d'une sécrétion servant, dès qu'elle a séché, à plusieurs marquages chimiques, par de longs trajets sur le substrat, ou sur des congénères (Darevsky 1956; De Haan 1999, 2003a). C. de Haan (2003a et comm. pers.) insiste sur ce caractère: « Avec le remarquable "regard d'aigle", l'important dimorphisme sexuel tant dans la coloration qu'en taille maximale, et les hémipénis des mâles si difficiles à détecter, il faut retenir cette autre particularité, propre à tous les Psammophiidés: la présence d'une valve narinaire, fermée ou non, observable lors d'un examen approché, chez les petits et grands individus des deux sexes ». Échelles: A, B, 50 mm; C-F, 10 mm. Photographies de Marc Cheylan.
Contrasting the depths of divergence between gene-tree and coalescent estimates in the North American Racers (Colubridae: Coluber constrictor)
<p>The North American racers (<em>Coluber constrictor</em>) are widely distributed across the Nearctic and numerous studies have demonstrated extensive variation in morphology, ecology, and population genetic structure. Here we take an integrative approach to understand lineage diversification within this taxon by combining genomic sequence capture data, mtDNA sequence data, morphometrics, and ecological niche models. Both the genomic data and mtDNA phylogeographic analyses support five lineages distributed across the range of this species. However, demographic model selection based on these two datasets strongly conflict in both the model of divergence and estimates of timing of lineage divergence. While mtDNA and concatenated genomic data suggest a Miocene origin of these distinct groups, coalescent-based demographic models of sequence capture data suggest lineage diversification occurred at ~33 kya in allopatry without gene flow. Using linear morphological measurements of head shape we demonstrate that lineages distributed largely east and west of the Mississippi River are distinguishable. Furthermore, ecological niche modelling demonstrates that lineages distributed in subtropical habitats have environmental niche space that is significantly differentiated from lineages distributed across the continent. Taken together, these results suggest that ecology is an important axis of lineage divergence within this group and that more fine-scale analyses may find even greater differentiation across the populations identified here.</p>
Contrasting the depths of divergence between gene-tree and coalescent estimates in the North American Racers (Colubridae: Coluber constrictor)
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FIGURE 1. NRM 8260, neotype for Coluber natrix. A in The taxonomic status of grass snake, Natrix natrix (Linnaeus, 1758) (Squamata: Colubridae), with designation of a neotype
FIGURE 1. NRM 8260, neotype for Coluber natrix. A) Dorsal view B) Ventral view. C) Immediately after being euthanized. D) Photo of the capture locality, Fada mill pond.
FIGURE 3 in On the identity, nomenclatural status and authorship of Coluber monticolus Cantor, 1839 (Reptilia: Serpentes)
FIGURE 3. Oligodon arnensis, adult, from Palakkad, Kerala state, India, ~ 90 m a.s.l.; courtesy K. P. Rajkumar.
FIGURE 2 in On the identity, nomenclatural status and authorship of Coluber monticolus Cantor, 1839 (Reptilia: Serpentes)
FIGURE 2. Original painting (referred to as Fig. 11 in Cantor's manuscript, but no. 13 on the sheet) of the holotype of Coluber monticolus Cantor, 1839 from his original manuscript entitled "Indian Serpents–Innocuous–Collected, figured & described (1831–1837)", kept in the Bodleian Library, Oxford, U.K. (see Appendix Note 1). Reproduced with permission from the Bodleian Library, Oxford, U.K.
FIGURE 5 in On the identity, nomenclatural status and authorship of Coluber monticolus Cantor, 1839 (Reptilia: Serpentes)
FIGURE 5. Boiga multifasciata, adult female, grey morphotype, from near Birethanti, Kaski District, Gandaki Zone, Nepal, 1055 m a.s.l.
FIGURE 4 in On the identity, nomenclatural status and authorship of Coluber monticolus Cantor, 1839 (Reptilia: Serpentes)
FIGURE 4. Boiga multifasciata, adult female, brown morphotype, from Phulchoki Mountain, Lalitpur District, Bagmati Zone, Nepal, ~ 2000 m a.s.l.
FIGURE 1. Virtual extract from a water-colour painting from Brian H in On the identity, nomenclatural status and authorship of Coluber monticolus Cantor, 1839 (Reptilia: Serpentes)
FIGURE 1. Virtual extract from a water-colour painting from Brian H. Hodgson`s collection of drawings kept in the Zoological Library of the Natural History Museum, London, U.K. The depicted specimen from the "Hills at Nipal" was determined by Albert C. L. Günther as "? Simotes russelli", a taxon presently regarded as a synonym of Oligodon arnensis (Shaw, 1802). In fact, the drawing shows a specimen of the brown morphotype of the Many-banded cat snake, Boiga multifasciata (Blyth, 1860). Artist unknown. Source: Library and Archives, Natural History Museum, London.
FIGURE 4. Coluber ammodytes specimen UPSZTY 95 in Assessment of the Linnaean type material of the Nose-horned viper, Vipera ammodytes (Linnaeus, 1758)
FIGURE 4. Coluber ammodytes specimen UPSZTY 95, collected by Carleson. Details of the lateral side of the head right and left; dorsolateral view of the whole specimen; frontal view of the rostral area; and dorsal view of the head.
FIGURE 3. ZMB 2796 in On the importance of types and the perils of "en passant" taxonomy: a brief history of the typification of Coluber naja Linnaeus, 1758 (Serpentes: Elapidae) and its implications, with the designation of a lectotype
FIGURE 3. ZMB 2796, here designated as lectotype of Coluber naja Linnaeus, 1758, also the holotype of Naja brasiliensis Laurenti, 1768. (A) Hood mark with additional small ocelli, as shown in Seba (1735, Pl. 89, fig. 4), indicated by arrows. (B) Underside of animal, arrows indicate multiple dark crossbands characteristic of Sri Lankan Naja naja. (C) Side view of head, arrow indicates the single cuneate scale. (D) Table 89, fig. 4 in Seba (1735), referenced by Linnaeus (1758) in his description of Coluber naja and Laurenti (1768) in his description of Naja brasiliensis.
FIGURE 2. ZMB 2795 in On the importance of types and the perils of "en passant" taxonomy: a brief history of the typification of Coluber naja Linnaeus, 1758 (Serpentes: Elapidae) and its implications, with the designation of a lectotype
FIGURE 2. ZMB 2795, syntype of Coluber naja Linnaeus, 1758, showing the (A) characteristic hood mark of Naja naja, and (B) the underside with multiple dark crossbands characteristic of Sri Lankan Naja naja indicated by white arrows. (C) Plate 85 from Seba (1735); note the great similarity between the illustration and specimen ZMB 2795.
FIGURE 1 in On the importance of types and the perils of "en passant" taxonomy: a brief history of the typification of Coluber naja Linnaeus, 1758 (Serpentes: Elapidae) and its implications, with the designation of a lectotype
FIGURE 1. Comparison between the throat patterns of an (A) an Indian and (B) a Sri Lankan specimen of Naja naja, showing overlap in the number of dark ventral bands. Indian specimen from Rathnapuri, Karnataka, Sri Lankan specimen from Kokuvil East, Jaffna, Sri Lanka. Photos by W. Wüster (A) and Aravinth Sukumar (B)
FIGURE 4. Specimen BMNH 1946.1.18.50 in On the importance of types and the perils of "en passant" taxonomy: a brief history of the typification of Coluber naja Linnaeus, 1758 (Serpentes: Elapidae) and its implications, with the designation of a lectotype
FIGURE 4. Specimen BMNH 1946.1.18.50, from Polonnaruwa, Sri Lanka. Holotype of Naia naia colour variety polyocellata Deraniyagala, 1939. (A) Top of the head and hood with hood mark. White arrows indicate the additional ocelli underlying the description of Deraniyagala's colour variety polyocellata. The blue patch is part of a nitrile glove holding down a flap of skin that is part of the hood. (B) Ventral view. White arrows indicate the four clearly defined ventral bands of the specimen. (C) Side view of the head; white arrow indicates the cuneate scale between the 4th and 5th infralabial, which is absent on the contralateral side of the head.
Data from: Conservation genetics of the eastern yellow-bellied racer (Coluber constrictor flaviventris) and bullsnake (Pituophis catenifer sayi): river valleys are critical features for snakes at northern range limits
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Figure 8 in A survey of the Linnaean type material of Coluber berus, Coluber chersea and Coluber prester (Serpentes, Viperidae)
Figure 8. Uninominal Drottningholm label found on the specimen NRM 5995.
Figure 7. Possible Linnaean type, specimen NRM 5995 in A survey of the Linnaean type material of Coluber berus, Coluber chersea and Coluber prester (Serpentes, Viperidae)
Figure 7. Possible Linnaean type, specimen NRM 5995.
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