A new species of annual fish, Hypsolebias tocantinensis sp.n. (Cyprinodontiformes:Rivulidae) from the rio Tocantins basin, northeastern Brazil

Zootaxa ◽  
2012 ◽  
Vol 3527 (1) ◽  
pp. 63 ◽  
Author(s):  
DALTON TAVARES BRESSANE NIELSEN ◽  
JOÃO CARLOS CRUZ ◽  
ARSÊNIO CALDEIRA BAPTISTA JUNIOR

Hypsolebias tocantinensis n. sp. is described from a temporary pool located in the rio Tocantins basin, Maranhão stateBrazil. Hypsolebias tocantinensis belongs the H. flammeus species-group. It is the first occurrence of genus Hypsolebiasin Maranhão state. This new species differs from all other species of that group, except Hypsolebias flammeus (Costa,1989), Hypsolebias multiradiatus (Costa &Brasil, 1994) and Hypsolebias brunoi (Costa, 2003), by male color pattern andby the presence of a metallic blue sheen surrounding the black spots in the female. It differs from H. flammeus, H. multi-radiatus and H. brunoi by the shape of the dorsal and anal fins (rounded vs. pointed) and by the orientation of the reddishbrown bars in males (diagonal vs. vertical). Hypsolebias tocantinensis differs from all other Hypsolebias by the presenceof, in females, irregular light brown stains on the anal fins and by the pattern of the metallic blue sheen around the blackspots (completely surrounding the black spots while in congeners this blue sheen is either absent or present in vertical bars).

2008 ◽  
Vol 6 (2) ◽  
pp. 175-180 ◽  
Author(s):  
Juliano Ferrer ◽  
Luiz R. Malabarba ◽  
Wilson J. E. M. Costa

Austrolebias paucisquama is described from the rio Vacacaí drainage, a tributary to the rio Jacuí, Rio Grande do Sul, Brazil. The new species belongs to the Austrolebias alexandri species-group, by sharing the apomorphic bright blue iridescence and dark gray pectoral fins in males. It is distinguished from other species of this group by having fewer scales around caudal peduncle (12) and fewer dorsal-fin rays in males (17-21). The lack of contact organs on the inner surface of the pectoral fin in males and the color pattern of females - ground color light brownish, sides of body with a variable number of relatively large dark black spots distributed mostly on posterior portion of body - distinguish A. paucisquama from all other species of the genus.


Zootaxa ◽  
2004 ◽  
Vol 468 (1) ◽  
pp. 1 ◽  
Author(s):  
WILSON J.E.M. COSTA

Simpsonichthys suzarti, new species, from the floodplains of the lower Rio Pardo, northeastern Brazil, is described. It is a member of a clade, herein termed S. constanciae species group, which is diagnosed by the eyes laterally positioned on the head and a derived pattern of cephalic neuromast arrangement, in which the supraorbital series is interrupted by a median interspace. It differs from all other species of the group in having the anal fin rounded in males and by the distinctive color pattern of males, including the presence of reddish brown bars along the whole flank, reticulate dark brown marks on the dorsal fin and oblique dark brown bars on the anal fin. A key to the species of the S. constanciae group is provided.


Zootaxa ◽  
2018 ◽  
Vol 4514 (1) ◽  
pp. 77 ◽  
Author(s):  
ANGELA M. ZANATA ◽  
TELTON P. A. RAMOS ◽  
LEONARDO OLIVEIRA-SILVA

Characidium tapuia, a new species apparently endemic to the rio Parnaíba basin, Brazil, is described. The new species is easily distinguished from congeners, except C. lanei, C. nana, and C. samurai, by having a broad and conspicuous dark lateral stripe, extending from the tip of snout to the end of caudal peduncle and by the absence of dark vertical bars on body of specimens larger than 23.0 mm SL. Characidium tapuia differs from the aforementioned species by a series of features, including 12 circumpeduncular scales (vs. 13 or 14 in C. lanei and C. samurai), presence of parietal branch of the supraorbital canal (vs. absence in C. lanei and C. nana), complete lateral line and adipose fin present (vs. lateral line incomplete and adipose fin absent in C. nana), and midlateral stripe with irregular borders (vs. lateral stripe with overall straight borders in C. samurai). 


Zootaxa ◽  
2008 ◽  
Vol 1861 (1) ◽  
pp. 44 ◽  
Author(s):  
ULISSES CARAMASCHI ◽  
RENATO N. FEIO ◽  
VINÍCIUS A. SÃO-PEDRO

A new species of Leptodactylus belonging to the L. fuscus species group, and related to the L. mystaceus complex, is described from the Lagoa das Bromélias (20 o 53’S, 42 o 31’W; 1,227 m above sea level), Parque Estadual da Serra do Brigadeiro, Municipality of Ervália, State of Minas Gerais, Southeastern Brazil. Leptodactylus cupreus sp. nov. is characterized by the large size for the group (SVL 50.1–55.1 mm in males) and color pattern. The new species has a non-pulsed advertisement call, with call rate about 12 calls/s and a dominant frequency between 2,800 and 3,058 Hz.


Zootaxa ◽  
2011 ◽  
Vol 2913 (1) ◽  
pp. 27 ◽  
Author(s):  
MARTINA E. POCCO ◽  
GONZALO D. RUBIO ◽  
M. MARTA CIGLIANO

A new species of the romaleid grasshopper genus Zoniopoda Stål (Romaleidae: Romaleini) is described and illustrated from the Sierras Chicas of Córdoba Province, central Argentina. A cladistic analysis based on morphological characters indicates that the genus Zoniopoda constitutes a monophyletic group and that Zoniopoda serrana n. sp. must be assigned to Iheringi species group based on synapomorphies of the pronotum and body color. The new species is similar to Z. similis Bruner from Paraguay, Bolivia and Brazil, from which it can be distinguished by the color pattern of the body, shape of the pronotal dorso-median carina and characters of the male terminalia and epiphallus. This paper has been formatted with embedded links to images of the type specimen, maps based on georeferenced specimen data for the genus and an updated key to the species of Zoniopoda available on the Orthoptera Species File (OSF) online (http://orthoptera.speciesfile.org).


Zootaxa ◽  
2010 ◽  
Vol 2629 (1) ◽  
pp. 61 ◽  
Author(s):  
PETER J. LANDOLT ◽  
JOSÉ MONZÓN SIERRA ◽  
THOMAS R. UNRUH ◽  
RICHARD S. ZACK

Vespula akrei Landolt sp. nov. is described from Guatemala. The first record of Vespa crabro L. in Guatemala is given, and Vespula inexspectata Eck from Mexico is re-described. We place Vespula akrei sp. nov. in the Vespula vulgaris (L.) species group (= Paravespula Bluthgen) based on morphology, color pattern, and DNA sequences from two mitochrondrial genes. It is presently known only from the Sierra de las Minas mountain range in southeastern Guatemala.


2016 ◽  
Vol 14 (3) ◽  
Author(s):  
Gustavo A. Ballen ◽  
Murilo N. L. Pastana ◽  
Luiz A. W. Peixoto

ABSTRACT A new species of Farlowella is described from eighteen specimens collected in the upper rio Xingu basin, Mato Grosso State, Brazil. The new species is a member of the Farlowella nattereri species-group and can be distinguished from other members of the group, with exception of Farlowella jauruensis , by exhibiting a proportionally shorter snout. The new species is distinguished from F. jauruensis by differences on the cleithrum and plate morphology, by counts of pelvic and caudal-fin rays, and by the color pattern of the snout. The discovery of new lots of F. jauruensis , a species so far known only from the holotype, is also herein reported. This discovery represents a considerable expansion of the geographic distribution and of the number of known specimens of F . jauruensis .


Zootaxa ◽  
2008 ◽  
Vol 1851 (1) ◽  
pp. 65
Author(s):  
D. A. DMITRIEV

The North American leafhopper genus Erasmoneura Young was described as a subgenus of Erythroneura Fitch by Young (1952) to comprise the informal Erythroneura vulnerata Fitch species group previously recognized by Beamer (1938, 1946). Erasmoneura was recently elevated to generic status (Dietrich & Dmitriev, 2006) and revised (Dmitriev & Dietrich, 2007). In this paper, the male of Erasmoneura bipentagona (Beamer), previously known only from the female holotype and placed in the genus based on external similarity and features of wing venation (Young, 1952; Dietrich & Dmitriev, 2006; Dmitriev & Dietrich, 2007, see also the note for the species below), and a new species are described. A key for identification of all 13 species of the genus is provided. The key is based mainly on male genitalia characters. Although individual species have a characteristic color pattern, details and intensity may be highly variable both inter- and intraspecifically.


Zootaxa ◽  
2019 ◽  
Vol 2719 (1) ◽  
pp. 62 ◽  
Author(s):  
ELIZA MARIA XAVIER FREIRE ◽  
ULISSES CARAMASCHI ◽  
UBIRATAN GONÇALVES

A new species of Dendrophidion belonging to the D. dendrophis species group is described from Mata do Engenho Coimbra (08°59’S, 35°53’W; 526 m above sea level), Municipality of Ibateguara, in the Atlantic Rainforest remnants of the State of Alagoas, northeastern Brazil. Dendrophidion atlantica sp. nov. is characterized by having 154–163 ventral scales, 140–160 subcaudal scales, tail length 62.2–74.8% of snout–vent length, collar absent, head uniformly brown and dorsal ground color brown, paler on anterior third, with cream transversal lines (one half a scale long), bordered anteriorly and posteriorly by dark brown lines (one half a scale long), distributed from the neck to the tail; hemipenis single, subcylindrical, unicapitate, and unicalyculate; calyces large, well defined, papillate; a series of 12 large spines just below the capitulum, on the asulcate and lateral sides; a series of four spines, two large laterals and two small between them, in the basal region of the asulcate side of the organ body; two large spines on the lateral distal areas of the sulcate side of the hemipenial body; sulcus spermaticus centrolineal, bifurcating at the tip of the capitulum.


Zootaxa ◽  
2020 ◽  
Vol 4859 (2) ◽  
pp. 275-284
Author(s):  
TIAGO C. FARIA ◽  
DOUGLAS A. BASTOS ◽  
JANSEN ZUANON ◽  
FLÁVIO C.T. LIMA

A new species of Hyphessobrycon Durbin from the Paraná do Urariá system in Central Amazon region, Amazonas state, Brazil, is described. The new species is allocated into the Hyphessobrycon heterorhabdus species-group due to its color pattern, composed by a well-defined, horizontally elongated humeral blotch continuous with a conspicuous midlateral dark stripe that becomes blurred towards the caudal peduncle, and can be distinguished from all other species of the group by possessing humeral blotch and continuous midlateral stripe broad, occupying vertical height equivalent of two scale rows. A tricolored pattern composed dorsally by a red or reddish longitudinal stripe, a middle iridescent, golden or silvery longitudinal stripe, and ventrally by a variably-developed longitudinal dark stripe is identified as a putative additional character shared by the species of the Hyphessobrycon heterorhabdus species-group. The presence of bony hooks in all fins in mature males of some species of the Hyphessobrycon heterorhabdus species-group is also discussed. 


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