Aknowledgements
We thank Dr Paul de Ley (Laboratory of Morphology
and Systematics, University of Ghent, Belgium) for
valuable discussions, advice, and assistance with the
Hennig86 computer program, and Dr Walter Moore
who was the first in recognizing the new species from
San Luis PotosI, and when he retired gave the material to Dr D. Belk for further study. Our appreciation
to the following persons who made material available for our study: M. C. M. Elias-Gutierrez, Escuela
Nacional de Estudios Profesionales, Iztacala, UNAM,
Mexico; Dr J. Brtek and Dr I. Geczyova, Hornonitrianske Muzeum Prievidza, Slovakia; Dr L. Forro,
Hungarian Natural History Museum; Dr J. W. Martin,
Natural History Museum of Los Angeles County, California, USA; Dr T. E. Bowman, National Museum
of Natural History, Smithsonian Institution, USA; M.
Silva-Briano, Centro Basico, Universidad Autonoma
de Aguascalientes. We also thank Mrs. Wellekens for
expert assistance with SEM. The first author has a doctoral followship with Consejo Nacional de Ciencia y
Tecnologfa (CONACYT), Mexico.
References
Archie, J. W., 1985. Methods for coding variable morphological
features for numerical taxonomic analysis. Syst. Zoo!. 34: 326345.
Baird, W, 1852. Monograph of the family Branchipodidae, a family of crustaceans belonging to the division Entomostraca, with
description of a new genus and species of the family, and two
new species belonging to the family Limnadiadae. Proc. zoo!.
Soc. Lond. 20: 18-30. Repeated verbatim in 1854, in Ann. Mag.
nat. Hist., Second series 14: 216-229.
Banarescu, P., 1990. Zoogeography offresh waters. General distribution and dispersal of freshwater animals. Aula-Verlag Wiesbaden
I: 392-405.
Baqai, I. U., 1963. Studies on the postembryonic development of
the fairy shrimp Streptocephalus seali Ryder. Tulane Stud. Zoo!.
10: 91-120.
Barnard, K. H., 1924. Contributions to a knowledge of the fauna
of South-West Africa. 2. Crustacea Entomostraca, PhylJopoda.
Ann. s. afro Mus. 20: 213-228.
Barnard, K. H., 1929. Contributions to the Crustacean fauna of
South Africa. 10. A revision of the South African Branchiopoda
(PhylJopoda). Ann. S. afro Mus. 29: 181-272.
Belk, D., 1973. Streptocephalus moorei n.sp., a new fairy shrimp
(Anostracea) from Mexico. Trans. am. microsc. Soc. 92: 507512.
Belk, D. 1975. Key to the Anostraca (fairy shrimps) of North America. S. West. Nat. 20: 91-103.
Belk, D., 1983. New fairy shrimp distribution records among collections at the California Academy of Sciences. S. West. Nat.
28: 380-381.
43
Belk, D., 1984. Patterns in anostracan distribution. In S. Jain &
P. Moyle (eds), Vernal pools and intermittent streams. Institute
of Ecology Publication No. 28, University of California, Davis,
California: 168-172.
Belk, D., 1991. Anostracan mating behavior: A case of scramblecompetition polygyny. In R. T. Bauer & J. W. Martin (eds), Crustacean sexual biology, Columbia University Press, New York:
II 1-\25.
Belk, D., G. Anderson & Sheau-Yu Hsu 1990. Additional observations on variations in egg size among populations of Streptocephalus seali (Anostraca). J. Crust. Bio!. 10: 128-133.
Brown, J. W., H. A. Wier & D. Belk, 1993. New records of fairy
shrimp (Crustacea: Anostraca) from Baja California, Mexico. S.
West. Nat. 38: 389-390.
Brtek, J., 1974. Zwei Streptocephalus Arten aus Afrika und einige
notizen zur gattung Streptocephalus. Ann. zoo!. bot., Bratislava
96: 1-9.
Claus, c., 1886. Untersuchungen uber die Organisation und
Entwicklung uber andere PhylJopoden. Arb. Zoo!. Inst. Wien
6: 267-370.
Creaser, E. P., 1930. The North American phyllopods of the genus
Streptocephalus. Occ. Pap. Univ. Mich. Mus. Zoo!. 9: 1-10.
Croizat, L., G. Nelson & D. E. Rosen, 1974. Centers of origin and
related concepts. Syst. Zoo!. 23: 265-287.
Daday, E., 1908. Diagnoses praecursoriae specierum aliquot
novarum e familia Branchipodidae. Ann. Sci. Nat., Zoo!. 7: 137150.
Daday, E., 1910. Monographie systematique des phyllopodes Anostraces. Ann. Sci. Nat., Zoo!. ser. 9, II: 91-489.
Dexter, R. W., 1959. Anostraca. In W.T. Edmonson (ed.), Fresh
Water Biology. Wiley, New York: 559-571.
Dodds. G. S., 1915. Descriptions of two new species ofEntomostraca
from Colorado, with notes on other species. Proc. U.S. natn. Mus.,
49: 97-102.
Dubois, A., 1988. The genus in zoology: a contribution to the theory
of evolutionary systematics. Mem. Mus. natn. Hist. nat., Paris,
(A) 140: 1-124.
Dumont, H. J., J. Mertens & A. M. Maeda-Martinez, 1995. Historical biogeography and morphological differentiation of Streptocephalus torvicornis (Waga) since the Wiirm III-glaciation.
Hydrobiologia 298 (Dev. Hydrobiol. 103): 281-286.
Eng, L. L., D. Belk & C. H. Eriksen, 1990. Californian Anostraca:
Distribution, habitat, and status. J. Crust. BioI. 10: 247-277.
Gharth, J. S., 1960. Norman T. Mattox, Ph. D. 1910-1960. Bul!. So.
Calif. Acad. Sc. 59: 53-55.
Hamer, M. & C. C. Appleton, 1993. Four new Streptocephalus (Crustacea, Branchiopoda, Anostraca) species from south-eastern
Africa. Ann. s. afro Mus. 103: 167-181.
Kitching, I. J., 1992. The determination of character polarity. In P. L.
Forey, C. J. Humphries, I. J. Kitching, R. W Scotland, D. J.
Siebert & D. M. Williams (eds), Cladistics. A practical course in
systematics, Oxford University Press, Oxford: 22-43.
Klunzinger, 1867. Ueber Branchipus rubricaudatus nov. spec. Z.
wiss. Zoo!. 17: 23-33.
Koehn, R. K. & G. A. Cole, 1964. Check list of the Branchiopoda (Anostraca) of Arizona with records of Artemia salina and
Streptocephalus dorothae. S. West. Nat. 9: 315-316.
Linder, F, 1941. Contributions to the Morphology and the Taxonomy
of the Branchiopoda Anostraca. Zoo!. Bidr. Upps. 20: 101-302.
Mackin, J. G., 1942. A new species of phyllopod crustacean from the
southwestern short-grass prairies. Proc. U.S. nat. Mus. 92: 33-38.
Maeda-Martinez, A. M., 1991. Distribution of species of Anostraca,
Notostraca, Spinicaudata, and Laevicaudata in Mexico. Hydrobiologia 212: 209-219.
We thank Dr Paul de Ley (Laboratory of Morphology
and Systematics, University of Ghent, Belgium) for
valuable discussions, advice, and assistance with the
Hennig86 computer program, and Dr Walter Moore
who was the first in recognizing the new species from
San Luis PotosI, and when he retired gave the material to Dr D. Belk for further study. Our appreciation
to the following persons who made material available for our study: M. C. M. Elias-Gutierrez, Escuela
Nacional de Estudios Profesionales, Iztacala, UNAM,
Mexico; Dr J. Brtek and Dr I. Geczyova, Hornonitrianske Muzeum Prievidza, Slovakia; Dr L. Forro,
Hungarian Natural History Museum; Dr J. W. Martin,
Natural History Museum of Los Angeles County, California, USA; Dr T. E. Bowman, National Museum
of Natural History, Smithsonian Institution, USA; M.
Silva-Briano, Centro Basico, Universidad Autonoma
de Aguascalientes. We also thank Mrs. Wellekens for
expert assistance with SEM. The first author has a doctoral followship with Consejo Nacional de Ciencia y
Tecnologfa (CONACYT), Mexico.
References
Archie, J. W., 1985. Methods for coding variable morphological
features for numerical taxonomic analysis. Syst. Zoo!. 34: 326345.
Baird, W, 1852. Monograph of the family Branchipodidae, a family of crustaceans belonging to the division Entomostraca, with
description of a new genus and species of the family, and two
new species belonging to the family Limnadiadae. Proc. zoo!.
Soc. Lond. 20: 18-30. Repeated verbatim in 1854, in Ann. Mag.
nat. Hist., Second series 14: 216-229.
Banarescu, P., 1990. Zoogeography offresh waters. General distribution and dispersal of freshwater animals. Aula-Verlag Wiesbaden
I: 392-405.
Baqai, I. U., 1963. Studies on the postembryonic development of
the fairy shrimp Streptocephalus seali Ryder. Tulane Stud. Zoo!.
10: 91-120.
Barnard, K. H., 1924. Contributions to a knowledge of the fauna
of South-West Africa. 2. Crustacea Entomostraca, PhylJopoda.
Ann. s. afro Mus. 20: 213-228.
Barnard, K. H., 1929. Contributions to the Crustacean fauna of
South Africa. 10. A revision of the South African Branchiopoda
(PhylJopoda). Ann. S. afro Mus. 29: 181-272.
Belk, D., 1973. Streptocephalus moorei n.sp., a new fairy shrimp
(Anostracea) from Mexico. Trans. am. microsc. Soc. 92: 507512.
Belk, D. 1975. Key to the Anostraca (fairy shrimps) of North America. S. West. Nat. 20: 91-103.
Belk, D., 1983. New fairy shrimp distribution records among collections at the California Academy of Sciences. S. West. Nat.
28: 380-381.
43
Belk, D., 1984. Patterns in anostracan distribution. In S. Jain &
P. Moyle (eds), Vernal pools and intermittent streams. Institute
of Ecology Publication No. 28, University of California, Davis,
California: 168-172.
Belk, D., 1991. Anostracan mating behavior: A case of scramblecompetition polygyny. In R. T. Bauer & J. W. Martin (eds), Crustacean sexual biology, Columbia University Press, New York:
II 1-\25.
Belk, D., G. Anderson & Sheau-Yu Hsu 1990. Additional observations on variations in egg size among populations of Streptocephalus seali (Anostraca). J. Crust. Bio!. 10: 128-133.
Brown, J. W., H. A. Wier & D. Belk, 1993. New records of fairy
shrimp (Crustacea: Anostraca) from Baja California, Mexico. S.
West. Nat. 38: 389-390.
Brtek, J., 1974. Zwei Streptocephalus Arten aus Afrika und einige
notizen zur gattung Streptocephalus. Ann. zoo!. bot., Bratislava
96: 1-9.
Claus, c., 1886. Untersuchungen uber die Organisation und
Entwicklung uber andere PhylJopoden. Arb. Zoo!. Inst. Wien
6: 267-370.
Creaser, E. P., 1930. The North American phyllopods of the genus
Streptocephalus. Occ. Pap. Univ. Mich. Mus. Zoo!. 9: 1-10.
Croizat, L., G. Nelson & D. E. Rosen, 1974. Centers of origin and
related concepts. Syst. Zoo!. 23: 265-287.
Daday, E., 1908. Diagnoses praecursoriae specierum aliquot
novarum e familia Branchipodidae. Ann. Sci. Nat., Zoo!. 7: 137150.
Daday, E., 1910. Monographie systematique des phyllopodes Anostraces. Ann. Sci. Nat., Zoo!. ser. 9, II: 91-489.
Dexter, R. W., 1959. Anostraca. In W.T. Edmonson (ed.), Fresh
Water Biology. Wiley, New York: 559-571.
Dodds. G. S., 1915. Descriptions of two new species ofEntomostraca
from Colorado, with notes on other species. Proc. U.S. natn. Mus.,
49: 97-102.
Dubois, A., 1988. The genus in zoology: a contribution to the theory
of evolutionary systematics. Mem. Mus. natn. Hist. nat., Paris,
(A) 140: 1-124.
Dumont, H. J., J. Mertens & A. M. Maeda-Martinez, 1995. Historical biogeography and morphological differentiation of Streptocephalus torvicornis (Waga) since the Wiirm III-glaciation.
Hydrobiologia 298 (Dev. Hydrobiol. 103): 281-286.
Eng, L. L., D. Belk & C. H. Eriksen, 1990. Californian Anostraca:
Distribution, habitat, and status. J. Crust. BioI. 10: 247-277.
Gharth, J. S., 1960. Norman T. Mattox, Ph. D. 1910-1960. Bul!. So.
Calif. Acad. Sc. 59: 53-55.
Hamer, M. & C. C. Appleton, 1993. Four new Streptocephalus (Crustacea, Branchiopoda, Anostraca) species from south-eastern
Africa. Ann. s. afro Mus. 103: 167-181.
Kitching, I. J., 1992. The determination of character polarity. In P. L.
Forey, C. J. Humphries, I. J. Kitching, R. W Scotland, D. J.
Siebert & D. M. Williams (eds), Cladistics. A practical course in
systematics, Oxford University Press, Oxford: 22-43.
Klunzinger, 1867. Ueber Branchipus rubricaudatus nov. spec. Z.
wiss. Zoo!. 17: 23-33.
Koehn, R. K. & G. A. Cole, 1964. Check list of the Branchiopoda (Anostraca) of Arizona with records of Artemia salina and
Streptocephalus dorothae. S. West. Nat. 9: 315-316.
Linder, F, 1941. Contributions to the Morphology and the Taxonomy
of the Branchiopoda Anostraca. Zoo!. Bidr. Upps. 20: 101-302.
Mackin, J. G., 1942. A new species of phyllopod crustacean from the
southwestern short-grass prairies. Proc. U.S. nat. Mus. 92: 33-38.
Maeda-Martinez, A. M., 1991. Distribution of species of Anostraca,
Notostraca, Spinicaudata, and Laevicaudata in Mexico. Hydrobiologia 212: 209-219.