FIGURES 1 3. Vespericola ohlone Roth, sp. nov. Holotype, SBMNH 348128, Patterson’s Willows, Alameda County, California. Top, apertural, and basal views of shell. Diameter (exclusive of outer lip) 14.5 mm; scale bar = 5 mm
Abstract: Four species of land snails are described from Costa Rica and Panama. Two are new species ...
Graduation date: 1964The morphology and taxonomic use of the reproductive\ud tracts of some of the P...
Figure 2. Shells of Pseudamnicola (C.) luisi. (A, C–F) Shells from La Gitana spring in La Peza, Gran...
Polygyridae Pilsbry, 1895 Type Species. Polygyra columbiana pilosa Henderson, 1928 [= Vespericola ...
Figure 4. Radulae of A. nyctelius (a–c) and A. valentianus (d–f) from sites within Los Angeles Count...
This checklist is a sequel to the one published by A. Myra Keen and Herdis Bentson in 1944 and is an...
California. Acta Palaeontologica Polonica 53 (4): 679–703. Fourteen gastropod species from 16 Mesozo...
FIGURE 3. A. Limpet gastropod indet. from Valanginian (Early Cretaceous) seep carbonates at Bear Cre...
Fourteen gastropod species from 16 Mesozoic hydrocarbon seep carbonate deposits of the Great Valley ...
The taxonomic affinities between the extinct acmaeid Collisella edmitchelli (Lipps. 1966) and Recent...
FIGURE 4. A–B. Cataegis? sp. from Valanginian (Early Cretaceous) seep carbonates at Rocky Creek, Col...
FIGURE 1. Triassurella goederti n. sp. from Early Cretaceous seep carbonates in California, USA. A-C...
FIGURES 5 – 12. Shells of Helminthoglypta morroensis and H. walkeriana. Figures 5 – 8. Helminthoglyp...
Paraseraphs erraticus (Cooper, 1894) Figure 7D 1894 Tornatina erratica Cooper, p. 4. Jung 1974, p...
Six gastropod species including two new ones, belonging to the family Architectonicidae, of the gene...
Abstract: Four species of land snails are described from Costa Rica and Panama. Two are new species ...
Graduation date: 1964The morphology and taxonomic use of the reproductive\ud tracts of some of the P...
Figure 2. Shells of Pseudamnicola (C.) luisi. (A, C–F) Shells from La Gitana spring in La Peza, Gran...
Polygyridae Pilsbry, 1895 Type Species. Polygyra columbiana pilosa Henderson, 1928 [= Vespericola ...
Figure 4. Radulae of A. nyctelius (a–c) and A. valentianus (d–f) from sites within Los Angeles Count...
This checklist is a sequel to the one published by A. Myra Keen and Herdis Bentson in 1944 and is an...
California. Acta Palaeontologica Polonica 53 (4): 679–703. Fourteen gastropod species from 16 Mesozo...
FIGURE 3. A. Limpet gastropod indet. from Valanginian (Early Cretaceous) seep carbonates at Bear Cre...
Fourteen gastropod species from 16 Mesozoic hydrocarbon seep carbonate deposits of the Great Valley ...
The taxonomic affinities between the extinct acmaeid Collisella edmitchelli (Lipps. 1966) and Recent...
FIGURE 4. A–B. Cataegis? sp. from Valanginian (Early Cretaceous) seep carbonates at Rocky Creek, Col...
FIGURE 1. Triassurella goederti n. sp. from Early Cretaceous seep carbonates in California, USA. A-C...
FIGURES 5 – 12. Shells of Helminthoglypta morroensis and H. walkeriana. Figures 5 – 8. Helminthoglyp...
Paraseraphs erraticus (Cooper, 1894) Figure 7D 1894 Tornatina erratica Cooper, p. 4. Jung 1974, p...
Six gastropod species including two new ones, belonging to the family Architectonicidae, of the gene...
Abstract: Four species of land snails are described from Costa Rica and Panama. Two are new species ...
Graduation date: 1964The morphology and taxonomic use of the reproductive\ud tracts of some of the P...
Figure 2. Shells of Pseudamnicola (C.) luisi. (A, C–F) Shells from La Gitana spring in La Peza, Gran...
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