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132 results for “Chihuahuan Desert”
FIGURE 3 in Two new species of Eucyclops Claus (Copepoda: Cyclopoida) from the Chihuahuan Desert with a redescription of E. pseudoensifer Dussart
FIGURE 3. Eucyclops cuatrocienegas sp. nov., adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) leg 1 with coxal plate (separate), frontal view; B) leg 2 with coxal plate, frontal; C) leg 3 with coxal plate, frontal; D) leg 4 with coxal plate, frontal; E) leg 5. Scale bars A–E=50 μm.
FIGURE 6. Eucyclops pseudoensifer Dussart, 1984 in Two new species of Eucyclops Claus (Copepoda: Cyclopoida) from the Chihuahuan Desert with a redescription of E. pseudoensifer Dussart
FIGURE 6. Eucyclops pseudoensifer Dussart, 1984, adult female paratype (MNHN-2547) from Laguna Mucubajì, Venezuela. A) antenna; B) leg 1; C) leg 2; D) leg 3. Scale bars A–D=50 μm.
FIGURE 11 in New species and records of springsnails (Caenogastropoda: Cochliopidae: Tryonia) from the Chihuahuan Desert (Mexico and United States), an imperiled biodiversity hotspot
FIGURE 11. Tryonia julimesensis sp. nov. and Tryonia allendae sp. nov. A. Holotype, T. julimesensis, USNM 874130. B–C. Male shells, T. julimesensis, USNM 1153671. D. Holotype, T. allendae, USNM 892115. E. Shell, T. allendae, USNM 1153667. F–G. Operculum (outer, inner sides), T. julimesensis, USNM 1153671. H–I. Operculum (outer, inner sides), T. allendae, USNM 1153671. J. Portion of radular ribbon, T. julimesensis, USNM 1153671. K. Central radular teeth, T. julimesensis, USNM 1153671. L. Lateral tooth, T. julimesensis, USNM 1153671. M. Portion of radular ribbon, T. allendae, USNM 1153667. N. Central radular teeth, T. allendae, USNM 1153667. R. Lateral teeth, T. allendae, USNM 1153667. Scale bars A–E = 1.0 mm; F–I = 250 µm; J, K–L, N–O = 10 µm; M = 25 µm.
FIGURE 5. Penes. A. T in New species and records of springsnails (Caenogastropoda: Cochliopidae: Tryonia) from the Chihuahuan Desert (Mexico and United States), an imperiled biodiversity hotspot
FIGURE 5. Penes. A. T. peregrina sp. nov., USNM 1153677. B. T. zaragozae sp. nov., USNM 1153679. C. T. ovata sp. nov., USNM 1153676. D. T. angosturae sp. nov., USNM 874174. E. T. molinae sp. nov., USNM 1153674. F. T. contrerasi sp. nov., USNM 1153670. G. T. taylori sp. nov., USNM 874047. H. T. taylori sp. nov., USNM 873252. I. T. metcalfi sp. nov., USNM 1153672. J. T. chuviscarae sp. nov., USNM 1001756. K. T. minckleyi sp. nov., USNM 1153673. L. T. julimesensis sp. nov., USNM 1153671. M. T. allendae sp. nov., USNM 1153667. N. T. oasiensis sp. nov., USNM 1153675. O. T. seemani, USNM 874125. P. T. seemani, USNM 874123. Scale bars = 250 µm. Db = distal bulb, Pa = papilla, Pd = penial duct, St = stylet.
FIGURE 12 in New species and records of springsnails (Caenogastropoda: Cochliopidae: Tryonia) from the Chihuahuan Desert (Mexico and United States), an imperiled biodiversity hotspot
FIGURE 12. Tryonia oasiensis sp. nov. and Tryonia seemani (Frauenfeld). A. Holotype, T. oasiensis, USNM 1123759. B. Male shell, T. oasiensis, USNM 1153675. C. Shell, T. seemani, USNM 874123. D–E. Shells, T. seemani, USNM 874125 (D is a male). F–G. Operculum (outer, inner sides), T. oasiensis, USNM 1153675. H–I. Operculum (outer, inner sides), T. seemani, USNM 874123. J. Portion of radular ribbon, T. oasiensis, USNM 1153675. K. Central radular teeth, T. oasiensis, USNM 1153675. L. Lateral teeth, T. oasiensis, USNM 1153675. M. Portion of radular ribbon, T. seemani, USNM 874123. N. Central radular teeth, T. seemani, USNM 874123. O. Lateral tooth, T. seemani, USNM 874123. Scale bars A–E = 1.0 mm, F–I = 250 µm, J = 25 µm. K–O = 10 µm.
FIGURE 2 in New species and records of springsnails (Caenogastropoda: Cochliopidae: Tryonia) from the Chihuahuan Desert (Mexico and United States), an imperiled biodiversity hotspot
FIGURE 2. Bayesian tree based on the COI dataset. Posterior probabilities are provided when>95%. The names of the species treated herein are in bold face. Terminals and specimen codes are labeled as in Table 1. The two well supported clades composed of new species described herein are labeled A–B.
FIGURE 8 in New species and records of springsnails (Caenogastropoda: Cochliopidae: Tryonia) from the Chihuahuan Desert (Mexico and United States), an imperiled biodiversity hotspot
FIGURE 8. Tryonia molinae sp. nov. and Tryonia contrerasi sp. nov. A. Holotype, T. molinae, USNM 1139278. B–C. Shells, T. molinae, USNM 1153674 (C is a male). D. Holotype, T. contrerasi, USNM 874121. E–F. Shells, T. contrerasi, USNM 874128 (F is a male). G–H. Operculum (outer, inner sides), T. molinae, USNM 1153674. I–J. Operculum (outer, inner sides), T. contrerasi, USNM 1153670. K. Portion of radular ribbon, T. molinae, USNM 1153674. L. Central radular teeth, T. molinae, USNM 1153670. M. Lateral and inner marginal teeth, T. molinae, USNM 1153670. N. Portion of radular ribbon, T. contrerasi, USNM 1153670. Q. Central radular teeth, T. contrerasi, USNM 1153670. R. Lateral tooth, T. contrerasi, USNM 1153670. Scale bars A–F = 1.0 mm; G–J = 250 µm; K, N = 25 µm, L–M, O–P = 10 µm.
FIGURE 10 in New species and records of springsnails (Caenogastropoda: Cochliopidae: Tryonia) from the Chihuahuan Desert (Mexico and United States), an imperiled biodiversity hotspot
FIGURE 10. Tryonia chuviscarae sp. nov. and Tryonia minckleyi sp. nov. A. Holotype, T. chuviscarae, USNM 873270. B. Male shell, T. chuviscarae, USNM 1153669. C. Male shell, T. chuviscarae, USNM 1001750. D. Holotype, T. minckleyi, USNM 1001751. E. Male shell, T. minckleyi, USNM 1153673. F–G. Operculum (outer, inner sides), T. chuviscarae, USNM 1001750. H–I. Operculum (outer, inner sides), T. minckleyi, USNM 1153673. J. Portion of radular ribbon, T. chuviscarae, USNM 001750. K. Central radular teeth, T. chuviscarae, USNM 1001750. L. Lateral and inner marginal teeth, T. chuviscarae, USNM 1001750. M. Portion of radular ribbon, T. minckleyi, USNM 1153673. N. Central radular teeth, T. minckleyi, USNM 1153673. O. Lateral tooth, T. minckleyi, USNM 1153673. Scale bars A–E = 1.0 mm, F–I = 100 µm, J–O = 10 µm.
FIGURE 4 in New species and records of springsnails (Caenogastropoda: Cochliopidae: Tryonia) from the Chihuahuan Desert (Mexico and United States), an imperiled biodiversity hotspot
FIGURE 4. Tryonia peregrina sp. nov. and Tryonia zaragozae sp. nov. A. Holotype, T. peregrina, USNM 874032. B–D. Shells, T. peregrina, USNM 873288 (C and D are males). E. Holotype, T. zaragozae, USNM 873286. F–G. Male shells, T. zaragozae, USNM 874120. H–I. Operculum (outer, inner sides), T. peregrina, USNM 1153677. J–K. Operculum (outer, inner sides), T. zaragozae, USNM 1153679. L. Apical view of shell showing spiral sculpture on teleoconch, T. zaragozae, USNM 1153679. M. Portion of radular ribbon, T. peregrina, USNM 1153677. N. Central radular teeth, T. peregrina, USNM 1153677. O. Lateral tooth, T. peregrina, USNM 1153677. P. Portion of radular ribbon, T. zaragozae, USNM 1153679. Q. Central radular teeth, T. zaragozae, USNM 1153679. R. Lateral tooth, T. zaragozae, USNM 1153679. Scale bars A–G = 1.0 mm, H–L = 250 µm, M, P = 25 µm, N–O, Q–R = 10 µm.
FIGURE 3 in New species and records of springsnails (Caenogastropoda: Cochliopidae: Tryonia) from the Chihuahuan Desert (Mexico and United States), an imperiled biodiversity hotspot
FIGURE 3. Tryonia peregrina sp. nov. A. Prostate gland (viewed from left side), USNM 1153677. B–C. Female brood pouch and associated structures (B, viewed from left side, embryos not shown; C, close-up of sperm pouches and associated ducts), USNM 1153677. Scale bars A = 250 µm, B–C = 500 µm. Ag = albumen gland, Avd = anterior section of vas deferens, Bp = brood pouch, Bu = bursa copulatrix, Cov = coiled oviduct, Pvd = posterior section of vas deferens, Pw = posterior wall of pallial cavity; Sdu, sperm duct; Sr, seminal receptacle; St, sperm tube.
FIGURE 7 in New species and records of springsnails (Caenogastropoda: Cochliopidae: Tryonia) from the Chihuahuan Desert (Mexico and United States), an imperiled biodiversity hotspot
FIGURE 7. Tryonia ovata sp. nov. and Tryonia angosturae sp. nov. A. Holotype, T. ovata, USNM 873264. B. Male shell, T. ovata, UTEP 977. C. Holotype, T. angosturae, USNM 873259. D–E. Shells, T. ovata, USNM 1153668 (E is a male). F–G. Operculum (outer, inner sides), T. ovata, USNM 1153676. H–I. Operculum (outer, inner sides), T. angosturae, USNM 1153688. J. Portion of radular ribbon, T. ovata, USNM 1153676. K. Central radular teeth, T. ovata, USNM 1153676. L. Lateral and inner marginal teeth, T. ovata, USNM 1153676. M. Portion of radular ribbon, T. angosturae, USNM 1153688. N. Central radular teeth, T. angosturae, USNM 1153688. O. Lateral and inner marginal teeth, T. angosturae, USNM 115368. Scale bars A–E = 1.0 mm, F–I = 250 µm, J, M = 25 µm, K–L, M–O = 10 µm.
FIGURE 1 in New species and records of springsnails (Caenogastropoda: Cochliopidae: Tryonia) from the Chihuahuan Desert (Mexico and United States), an imperiled biodiversity hotspot
FIGURE 1. Map showing the distribution of Tryonia species in the Chihuahuan Desert. 1. Tryonia hertleini, Las Palomas. 2. Tryonia peregrina sp. nov., Ojo Vareleño, northwest of Casas Grandes. 3. Tryonia peregrina sp. nov., Yepomera. 4. Tryonia zaragozae sp. nov., northeast of Ignacio Zaragoza. 5. Tryonia angostura sp. nov., T. ovata sp. nov., south of Galeana. 6. Tryonia molinae sp. nov., El Molino. 7. Tryonia taylori sp. nov., vicinity of Rancho Ojo Caliente. 8. Tryonia contrerasi sp. nov., vicinity of Rancho Nuevo. 9. Tryonia chuviscarae sp. nov., T. minckleyi sp. nov., Balneario de San Diego de Alcala. 10. Tryonia julimesensis sp. nov., south of Julimes. 11. Tryonia allendae sp. nov., southwest of Talamantes. 12. Tryonia metcalfi sp. nov., La Cienega, south of Candelaria. 13. Tryonia oasiensis sp. nov., Caroline Spring, Oasis Ranch. 14. Tryonia cheatumi, Phantom Lake Spring. 15. Tryonia circumstriata, Diamond Y Draw. 16. Tryonia seemani, Ojo de Agua del Obispo, Durango City. 17. Tryonia seemani, Nombre de Dios. 18. Tryonia seemani, Amado Nervo.
FIGURE 6 in New species and records of springsnails (Caenogastropoda: Cochliopidae: Tryonia) from the Chihuahuan Desert (Mexico and United States), an imperiled biodiversity hotspot
FIGURE 6. Photographs of habitats of species treated in this paper. A. Ojo Vareleño, Chihuahua, type locality of T. peregrina sp. nov. (photograph taken on 16/ix/1990). B. Main spring in Yepomera, Chihuahua, T. peregrina habitat (18/ix/1990). C. Springs northeast of Ignacio Zaragoza, Chihuaua, type locality of T. zaragozae sp. nov. (8/xii/1998). D. Western-most head spring, Ojos de Arrey, Chihuahua, type locality of T. angosturae sp. nov. and T. ovata sp. nov. (7/xii/1998). E. Spring in northern part of El Molino, Chihuahua, type locality of T. molinae sp. nov. (26/iv/2010). F. Ojo del Apache, Chihuahua, type locality of T. contrerasi sp. nov. (14/xii/1998). G. Ojo Carbonero, Chihuahua, T. contrerasi habitat (2/iv/1991). H. Outflow of Ojo Caliente, Chihuahua, type locality of T. taylori sp. nov. (7/ xii/1998). I–J. El Ojo de Servin, Chihuahua, T.taylori habitat (27-viii-1971, 7/xii/1998, respectively). K. Seeps in La Cienega, Texas, type locality of T. metcalfi sp. nov. (6/xii/2001). L–M. Balneario de San Diego de Alcala, Chihuahua, type locality of T. chuviscarae sp. nov. and T. minckleyi sp. nov. (4/xii/2001). N. Springs southeast of Julimes, Chihuahua, type locality of T. julimesensis sp. nov. (5/ iv/1991). O. El Ojito (outflow), southwest of Talamantes, Chihuahua, type locality of T. allendae sp. nov. (10/xii/1998). P. Caroline Spring, Oasis Ranch, Texas, type locality of T. oasiensis sp. nov. (30/iii/2009). Q. Spring in Nombre de Dios, Durango, T. seemani habitat (2/ix/1971). R. Spring in Amado Nervo, Durango, T. seemani habitat (7/iv/1991).
FIGURE 9 in New species and records of springsnails (Caenogastropoda: Cochliopidae: Tryonia) from the Chihuahuan Desert (Mexico and United States), an imperiled biodiversity hotspot
FIGURE 9. Tryonia taylori sp. nov and T. metcalfi sp. nov. A. Holotype, T. taylori, USNM 873254. B. Male shell, T. taylori, USNM 1153678. C–D. Shells, T. taylori, USNM 873283 (D is a male). E. Holotype, T. metcalfi, USNM 1001931. F. Shell, T. metcalfi, USNM 1153672. G–I. Operculum (outer, inner, inner sides), T. taylori, USNM 1153678. J–K. Operculum (outer, inner sides), T. metcalfi, USNM 1153672. L. Portion of radular ribbon, T. taylori, USNM 1153678. M. Central radular teeth, T. taylori, USNM 1153678. N. Lateral tooth, T. taylori, USNM 1153678. O. Portion of radular ribbon, T. metcalfi, USNM 1153672. P. Central radular teeth, T. metcalfi, USNM 1153672. Q. Lateral teeth, T. metcalfi, USNM 1153672. Scale bars A–F = 1.0 mm; G–K = 250 µm; L, O = 25 µm, M–N, P–Q = 10 µm.
Supplementary material 1 from: Collins N, Lightfoot DC (2022) A new species of tree cricket (Orthoptera, Gryllidae, Oecanthinae) from Chihuahuan Desert gypsum dunes in the United States and a key to the nigricornis species group. Journal of Orthoptera Research 31(2): 181-189. https://doi.org/10.3897/jor.31.79036
Supplementary material 1 from: Collins N, Lightfoot DC (2022) A new species of tree cricket (Orthoptera, Gryllidae, Oecanthinae) from Chihuahuan Desert gypsum dunes in the United States and a key to the nigricornis species group. Journal of Orthoptera Research 31(2): 181-189. https://doi.org/10.3897/jor.31.79036
Supplementary material 8 from: Collins N, Lightfoot DC (2022) A new species of tree cricket (Orthoptera, Gryllidae, Oecanthinae) from Chihuahuan Desert gypsum dunes in the United States and a key to the nigricornis species group. Journal of Orthoptera Research 31(2): 181-189. https://doi.org/10.3897/jor.31.79036
Supplementary material 8 from: Collins N, Lightfoot DC (2022) A new species of tree cricket (Orthoptera, Gryllidae, Oecanthinae) from Chihuahuan Desert gypsum dunes in the United States and a key to the nigricornis species group. Journal of Orthoptera Research 31(2): 181-189. https://doi.org/10.3897/jor.31.79036
Supplementary material 5 from: Collins N, Lightfoot DC (2022) A new species of tree cricket (Orthoptera, Gryllidae, Oecanthinae) from Chihuahuan Desert gypsum dunes in the United States and a key to the nigricornis species group. Journal of Orthoptera Research 31(2): 181-189. https://doi.org/10.3897/jor.31.79036
Supplementary material 5 from: Collins N, Lightfoot DC (2022) A new species of tree cricket (Orthoptera, Gryllidae, Oecanthinae) from Chihuahuan Desert gypsum dunes in the United States and a key to the nigricornis species group. Journal of Orthoptera Research 31(2): 181-189. https://doi.org/10.3897/jor.31.79036
Supplementary material 6 from: Collins N, Lightfoot DC (2022) A new species of tree cricket (Orthoptera, Gryllidae, Oecanthinae) from Chihuahuan Desert gypsum dunes in the United States and a key to the nigricornis species group. Journal of Orthoptera Research 31(2): 181-189. https://doi.org/10.3897/jor.31.79036
Supplementary material 6 from: Collins N, Lightfoot DC (2022) A new species of tree cricket (Orthoptera, Gryllidae, Oecanthinae) from Chihuahuan Desert gypsum dunes in the United States and a key to the nigricornis species group. Journal of Orthoptera Research 31(2): 181-189. https://doi.org/10.3897/jor.31.79036
Supplementary material 2 from: Collins N, Lightfoot DC (2022) A new species of tree cricket (Orthoptera, Gryllidae, Oecanthinae) from Chihuahuan Desert gypsum dunes in the United States and a key to the nigricornis species group. Journal of Orthoptera Research 31(2): 181-189. https://doi.org/10.3897/jor.31.79036
Supplementary material 2 from: Collins N, Lightfoot DC (2022) A new species of tree cricket (Orthoptera, Gryllidae, Oecanthinae) from Chihuahuan Desert gypsum dunes in the United States and a key to the nigricornis species group. Journal of Orthoptera Research 31(2): 181-189. https://doi.org/10.3897/jor.31.79036
Supplementary material 3 from: Collins N, Lightfoot DC (2022) A new species of tree cricket (Orthoptera, Gryllidae, Oecanthinae) from Chihuahuan Desert gypsum dunes in the United States and a key to the nigricornis species group. Journal of Orthoptera Research 31(2): 181-189. https://doi.org/10.3897/jor.31.79036
Supplementary material 3 from: Collins N, Lightfoot DC (2022) A new species of tree cricket (Orthoptera, Gryllidae, Oecanthinae) from Chihuahuan Desert gypsum dunes in the United States and a key to the nigricornis species group. Journal of Orthoptera Research 31(2): 181-189. https://doi.org/10.3897/jor.31.79036
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OpenNeuro
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