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Authors: Davis, GM
Citation: Gm. Davis, Arthur J. Cain - 1921-1999, P AC NAT S, 150, 2000, pp. 1-2

Authors: Spamer, EE
Citation: Ee. Spamer, The legacy of "friends of natural science": A systematic look at the scientific publications of the Academy of Natural Sciences of Philadelphia, 1817-2000, P AC NAT S, 150, 2000, pp. 3-13

Authors: Peck, RM
Citation: Rm. Peck, To the ends of the earth for science: Research expeditions of the Academy of Natural Sciences - the first 150 years, 1812-1962, P AC NAT S, 150, 2000, pp. 15-46

Authors: Spamer, EE McCourt, RM Middleton, R Gilmore, E Duran, SB
Citation: Ee. Spamer et al., A national treasure: Accounting for the natural history specimens from theLewis and Clark Expedition (western North America, 1803-1806) in the Academy of Natural Sciences of Philadelphia, P AC NAT S, 150, 2000, pp. 47-58

Authors: Torrens, HS Benamy, E Daeschler, EB Spamer, EE Bogan, AE
Citation: Hs. Torrens et al., Etheldred Benett of Wiltshire, England, the first lady geologist - Her fossil collection in the Academy of Natural Sciences of Philadelphia, and the rediscovery of "lost" specimens of Jurassic Trigoniidae (Mollusca : Bivalvia) with their soft anatomy preserved, P AC NAT S, 150, 2000, pp. 59-123

Authors: Boyko, CB
Citation: Cb. Boyko, Type and other specimens of Crustacea (Arthropoda) described by de Saussure (1853) rediscovered in the Academy of Natural Sciences of Philadelphia, P AC NAT S, 150, 2000, pp. 125-133

Authors: de Villalobos, C Ramirez, G Chavarria, S Zanca, F
Citation: C. De Villalobos et al., Cuticular ultrastructure of Paragordius esavianus Carvalho and P-varius (Leidy) (Nematomorpha : Chordodidae : Paragordinae), P AC NAT S, 150, 2000, pp. 135-144

Authors: Gelhaus, J Podenas, S Brodo, F
Citation: J. Gelhaus et al., New and poorly known species of long-palped crane flies (Diptera : Tipulidae) from Mongolia, P AC NAT S, 150, 2000, pp. 145-157

Authors: Lombardo, F
Citation: F. Lombardo, A review of the genus Decimiana Uvarov, 1940 (Insecta : Mantodea), with description of a new species, P AC NAT S, 150, 2000, pp. 159-171

Authors: Snyder, MA
Citation: Ma. Snyder, Nomenclatural emendations in the family Fasciolariidae (Mollusca : Gastropoda), P AC NAT S, 150, 2000, pp. 173-179

Authors: Daeschler, EB
Citation: Eb. Daeschler, An early actinopterygian fish from the Catskill formation (Late Devonian, Famennian) in Pennsylvania, USA, P AC NAT S, 150, 2000, pp. 181-192

Authors: Garavello, JC
Citation: Jc. Garavello, Two new species of Leporinus Spix with a review of the blotched species ofthe Rio Orinoco system and redescription of Leporinus muyscorum Steindachner (Charciformes : Anostomidae), P AC NAT S, 150, 2000, pp. 193-201

Authors: Bohlke, EB Randall, JE
Citation: Eb. Bohlke et Je. Randall, A review of the moray eels (Angulliformes : Muraenidae) of the Hawaiian Islands, with descriptions of two new species, P AC NAT S, 150, 2000, pp. 203-278

Authors: Joseph, L
Citation: L. Joseph, Beginning an end to 63 years of uncertainty: The Neotropical parakeets known as Pyrrhura picta and P. leucotis comprise more than two species, P AC NAT S, 150, 2000, pp. 279-292

Authors: Joseph, L Stockwell, D
Citation: L. Joseph et D. Stockwell, Temperature-based models of the migration of Swainson's Flycatcher (Myiarchus swainsoni) across South America: A new use for museum specimens of migratory birds, P AC NAT S, 150, 2000, pp. 293-300

Authors: Sterrenburg, FAS
Citation: Fas. Sterrenburg, Studies on the genera Gyrosigma and Pleurosigma (Bacillariophyceae) - Gyrosigma reversum (Gregory) Hendey and G. naja (Meister) Sterrenburg, nov comb., P AC NAT S, 150, 2000, pp. 301-304

Authors: Sterrenburg, FAS Tiffany, MA Lange, CB
Citation: Fas. Sterrenburg et al., Studies on the genera Gyrosigma and Pleurosigma (Bacillariophyceae) - Species from the Salton Sea, California, USA, including Pleurosigma ambrosianum, nov sp., P AC NAT S, 150, 2000, pp. 305-313

Authors: Spamer, EE Lendemer, JC
Citation: Ee. Spamer et Jc. Lendemer, Type specimens of fossil plants in the Paleobotany Collection, Academy of Natural Sciences of Philadelphia - Revised catalogue, P AC NAT S, 150, 2000, pp. 315-328

Authors: Davidson, JP
Citation: Jp. Davidson, Fish tales: Attributing the first illustration of a fossil shark's tooth to Richard Verstegan (1605) and Nicolas Steno (1667), P AC NAT S, 150, 2000, pp. 329-344

Citation: CL: Another milestone - Editor's Introduction, P AC NAT S, 150, 2000, pp. I-II

Authors: Reveal, JL Moulton, GE Schuyler, AE
Citation: Jl. Reveal et al., The Lewis and Clark collections of vascular plants: Names, types, and comments, P AC NAT S, 149, 1999, pp. 1-64

Authors: Gutierrez, E
Citation: E. Gutierrez, Two new species of the cockroach genus Eurycotis Stal (Dictyoptera : Blattidae : Polyzosteriinae) from Cuba and Puerto Rico (West Indies), P AC NAT S, 149, 1999, pp. 65-69

Authors: Gutierrez, E
Citation: E. Gutierrez, The cockroach genus Leuropeltis Hebard (Dictyoptera : Blattellidae : Pseudophyllodromiinae) with a new species from South America, P AC NAT S, 149, 1999, pp. 71-75

Authors: Absalao, RS Pimenta, AD
Citation: Rs. Absalao et Ad. Pimenta, Turbonilla (Gastropoda : Pyramidellidae) species described by Katharine Jeannette Bush: Scanning electron microscope studies of the type material in the Academy of Natural Sciences of Philadelphia, P AC NAT S, 149, 1999, pp. 77-91

Authors: Salisbury, R Rosenberg, G
Citation: R. Salisbury et G. Rosenberg, Description of a new species of Pusia (Gastropoda : Costellariidae) from Japan, P AC NAT S, 149, 1999, pp. 93-97
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