A Nosema (Microsporida) epizootic in fairy shrimp (Crustacea: Anostraca)

1976 ◽  
Vol 54 (7) ◽  
pp. 1161-1164 ◽  
Author(s):  
Graham R. Daborn
Keyword(s):  
New Species ◽  
Egg Production ◽  
First Year ◽  
Fairy Shrimp ◽  
A New Species

A new species of Nosema (Microsporida) is recorded in two species of Branchinecta. In the first year of occurrence (1970) 100% of B. gigas and 91% of B. mackini were infected at the beginning of June. Mortality of infected animals was much higher than of uninfected ones. Infections recurred in 1971 with maximum values of 47% and 57% in B. gigas and B. mackini, respectively, and in 1972 with values of <10% in each, but they were not evident in 1973. No effect on host egg production was detected.

A new species of Branchinecta (Crustacea: Branchiopoda: Anostraca) from the Argentinian Tierra del Fuego

Zootaxa ◽  
2008 ◽  
Vol 1884 (1) ◽  
pp. 60 ◽  
Author(s):  
ROSA GRACIELA COHEN
Keyword(s):  
New Species ◽  
Tierra Del Fuego ◽  
Temporary Pond ◽  
Fairy Shrimp ◽  
Anterior Surface ◽  
Rounded Apex ◽  
A New Species

Branchinecta fueguina, a new species of fairy shrimp, was found together with B. granulosa in a temporary pond beside Laguna de los Cisnes, 53°47'12''S, 67°46'55''W, Tierra del Fuego, Antártida e Islas del Atlántico Sur Province (Argentina). The male second antennal basal article has a proximal, anteriomedial auriculate welt, covered with sensory setae and a hanging posteriomedial ornamented apophysis bending abruptly anteriorly with a rounded apex. Distally, the basal article has a longitudinal medial crest, proximally produced into a blunt posteriomedially directed point. The distal article is strongly rotated, articulating almost perpendicular to the basal article. The anterior surface of the article is triangular, from its proximal joint to the broadly explanate apex. Distally, the broadened article bends anteriorly forming a complex three-lobed apex. The peculiar joint with the basal article and the distal article shape are unique in the genus.

A new species of Dendrocephalus (Crustacea, Anostraca) from Serra dos Carajás (Pará State, Brasil)

Zootaxa ◽  
2012 ◽  
Vol 3363 (1) ◽  
pp. 52 ◽  
Author(s):  
D. CHRISTOPHER ROGERS ◽  
JOÃO PEDRO CORRÊA GOMES ◽  
FABIO VIEIRA
Keyword(s):  
New Species ◽  
Compound Eye ◽  
Proximal Portion ◽  
Fairy Shrimp ◽  
Amazonian Forest ◽  
Temporary Pool ◽  
A New Species

Dendrocephalus carajaensis, a new species of fairy shrimp, is described from a single temporary pool in canga deposits on theSerra Sul plateau, Serra dos Carajás region in Brazilian Amazonian forest, Pará State, Brasil. D. carajaensis sp. nov. males arereadily separated from all other Dendrocephalus species except D. brasiliensis and D. spartaenovae by the absence of a spineon the posterioventral surface of the compound eye. This species is separated from D. brasiliensis and D. spartaenovae by theform of the proximal portion of the frontal appendage and the endopodites of the first three thoracopods. This species appears to be endemic to the Serra dos Carajás.

scholarly journals A new species of Branchinecta (Crustacea: Anostraca) from Brasil

Zootaxa ◽  
2007 ◽  
Vol 1445 (1) ◽  
pp. 27-34 ◽  
Author(s):  
D. CHRISTOPHER ROGERS ◽  
ALOISIO FERREIRA
Keyword(s):  
New Species ◽  
Brood Pouch ◽  
Temporary Pools ◽  
Fairy Shrimp ◽  
Belo Horizonte ◽  
A New Species ◽  
Female Brood

Branchinecta ferrolimneta, a new species of fairy shrimp, is described from shallow temporary pools from west of Nova Lima, about 10 km south-southeast of Belo Horizonte, in southeastern Brasil. This new species is the second species of Branchinecta to be described from Brasil. B. ferrolimneta is unique among Branchinecta species in the form of the male second antenna, and the female brood pouch and dorsolateral ornamentation.  Observations on the ecology of B. ferrolimneta are discussed.

A new species of Chirocephalus (Crustacea: Anostraca) from Iran

Zootaxa ◽  
2013 ◽  
Vol 3609 (3) ◽  
pp. 319-326 ◽  
Author(s):  
D. CHRISTOPHER ROGERS ◽  
MAHMOUD SOUFI
Keyword(s):  
New Species ◽  
National Park ◽  
Fairy Shrimp ◽  
A New Species ◽  
Expanded Form

Chirocephalus soulukliensis, an insular new species of fairy shrimp, is described from the Soulukli Wetland in Golestan National Park in northeastern Iran. The new species shares several characters with the loosely organized "Pristicephalus" group. It is readily separated from all congeners by the short, monolamellar form of the antennal appendage, which is un-armed, the distally expanded form of the apophyses, and the sinuate form of the second antennal distal antennomere.

A new species of Branchinecta (Crustacea: Anostraca) with comments on the large branchiopod crustaceans of Kansas

Zootaxa ◽  
2011 ◽  
Vol 2749 (1) ◽  
pp. 62
Author(s):  
D. CHRISTOPHER ROGERS ◽  
DON DASIS ◽  
DANIEL G. MURROW
Keyword(s):  
New Species ◽  
Great Plains ◽  
Type Locality ◽  
Fairy Shrimp ◽  
Temporary Pool ◽  
Medial Surface ◽  
A New Species ◽  
Large Branchiopod

Branchinecta mediospinosa, a new species of fairy shrimp, is described from a single artificial temporary pool in Kansas, USA. The type locality has since been destroyed. The new species shares several characters with Branchinecta lindahli and B. constricta including the general form of the male second antennal distal antennomere. However, B. mediospinosa males are readily separated from all other Branchinecta species by the presence of an apically spiniform projection on the second antenna proximal antennomere medial surface. Female B. mediospinosa also strongly resemble female B. lindahli, however B. mediospinosa has hemispherical dorsolateral projections on thoracic segments IV to X, whereas in B. lindahli they occur on IV to XI, and in B. constricta they appear on IV to XII. The Anostraca of Kansas and the Great Plains are briefly discussed, and new large branchiopod records are presented.

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