A new species of Hastospiculum Skrjabin (Spirurida: Diplotriaenidae) parasite of Xenodon merremii (Walger in Spix) (Serpentes: Dipsadidae) from Northeastern Brazil

Zootaxa ◽  
2020 ◽  
Vol 4878 (2) ◽  
pp. 362-374
Author(s):  
CRISTIANA FERREIRA-SILVA ◽  
EDNA P. ALCANTARA ◽  
ROBSON W. ÁVILA ◽  
REINALDO J. SILVA
Keyword(s):  
Nematode Species ◽  
Neotropical Region ◽  
Body Cavity ◽  
The Body ◽  
Northeastern Brazil ◽  
Species List ◽  
Spicule Length ◽  
Dichotomous Key ◽  
Left Spicule ◽  
A New Species

A new nematode species of the Diplotriaenidae is described from the Neotropical region. The species was found infecting the body cavity of the snake Xenodon merremii (Wagler in Spix) collected in the municipality of Barbalha, Ceará State, Northeastern Brazil. Hastospiculum nordestinum n. sp. differs from the congeners by combining the following characters: caudal end ornamented with lateral alae not surrounding the tail end and not connected, supported by eight pairs of pedunculated papillae (three precloacal, one paracloacal, and four postcloacal pairs) and three adcloacal sessile papillae, and left spicule length 719.6–902.4 µm. Besides the description of Hastospiculum nordestinum n. sp., a species list and a dichotomous key to Hastospiculum are provided.

Foleyellides rhinellae sp. nov. (Nematoda, Onchocercidae) a new filaria parasitizing Rhinella marina (Anura, Bufonidae) in Mexico

2014 ◽  
Vol 59 (3) ◽  
Author(s):  
Luis García-Prieto ◽  
Nallely Ruiz-Torres ◽  
David Osorio-Sarabia ◽  
Aldo Merlo-Serna
Keyword(s):  
New Species ◽  
Nematode Species ◽  
Body Cavity ◽  
The Body ◽  
The Other ◽  
Cane Toad ◽  
Rhinella Marina ◽  
The Pacific ◽  
Pacific Slope ◽  
Left Spicule

AbstractA new nematode species, Foleyellides rhinellae sp. nov. (Onchocercidae), is described from specimens found in the body cavity of the cane toad, Rhinella marina (Linnaeus) (Anura, Bufonidae), in the Laguna de Coyuca, Guerrero, in the Pacific slope of Mexico. The new species differs from the other nine species of Foleyellides by infecting bufonid anurans and by the number and arrangement of caudal papillae. Other distinguishing feature of the new species is the size of the left spicule (0.16–0.23 long), the smallest recorded among the species included in the genus. Foleyellides rhinellae sp. nov. is the second known species of the genus recorded from amphibians of Mexico.

scholarly journals Phasmarhabditis zhejiangensis sp. nov. (Nematoda: Rhabditidae), a new rhabditid nematode from Zhejiang, China

PLoS ONE ◽  
2020 ◽  
Vol 15 (11) ◽  
pp. e0241413
Author(s):  
Chao-nan Zhang ◽  
Qi-zhi Liu
Keyword(s):  
Internal Transcribed Spacer ◽  
Phylogenetic Analyses ◽  
Nematode Species ◽  
The Body ◽  
Molecular Analyses ◽  
Spicule Length ◽  
Rdna Sequences ◽  
Tail Shape ◽  
28S Rdna Sequences ◽  
A New Species

A new nematode species of the genus Phasmarhabditis was isolated from the body surface of a slug (Philomycus bilineatus Benson, PB). Morphological and molecular analyses confirmed this nematode as a new species. The nematode was named Phasmarhabditis zhejiangensis sp. nov. (Nematoda: Rhabditidae) and is dioecious. In males, the open bursa with genital papillae is characterized by the formula 1-1-1-2-1-3, and the spicule length is 58μm. In female, the vulva is located approximately in the middle of the body. The nematode belongs to papillosa group because of its tail shape pointed with filiform tip. The phasmids are rod-shaped. The posterior anus is slightly swollen. P. zhejiangensis was further characterized by internal transcribed spacer (ITS), 18S rDNA and 28S rDNA sequences. After the sequencing results were compared with sequences available from the National Center for Biotechnology Information (NCBI), the maximum similarities of ITS, 18S and 28S sequences were 89.81%, 96.22% and 95.28%, respectively. Phylogenetic analyses placed Phasmarhabditis zhejiangensis sp. nov. in the genus Phasmarhabditis.

scholarly journals A new species of Characidium (Characiformes: Crenuchidae) from small coastal drainages in northeastern Brazil, with remarks on the pseudotympanum of some species of the genus

2014 ◽  
Vol 12 (2) ◽  
pp. 333-342 ◽  
Author(s):  
Angela M. Zanata ◽  
Priscila Camelier
Keyword(s):  
New Species ◽  
Lateral Line ◽  
The Body ◽  
Northeastern Brazil ◽  
Horizontal Scale ◽  
Caudal Peduncle ◽  
Transversal Line ◽  
Lateral Band ◽  
The Family ◽  
A New Species

Characidium samurai, a species of the family Crenuchidae apparently endemic to rio das Almas and rio Vermelho basins, Bahia, Brazil, is described. The new species is readily distinguishable from its congeners, except C. lanei, by having a dark lateral band along the head and body that is particularly broad from the rear of the head to the end of the caudal peduncle (1.5 or 2 scales wide) and by the absence of dark bars or blotches on the ventral half of the body. Characidium samurai differs from C. laneiby having the lateral band with straight borders overall (vs.lateral band with somewhat irregular borders due to blotches extending dorsally or ventrally), anal fin ii,7-8 (vs. ii,6), and 4 horizontal scale rows above the lateral line and 4 below (vs. 5/3). It further differs from congeners by a series of features, including isthmus completely covered by scales, lateral line complete with 34-37 perforated scales, 9 scales on the transversal line, 14 scale rows around the caudal peduncle, anal fin ii,7-8, and the absence of dark bars or spots on the fins, except by a faded dorsal-fin bar. The presence of pseudotympanum in four species of Characidium is discussed.

Two new species of Xyalidae (Monhysterida, Nematoda) from the East China Sea

Zootaxa ◽  
2018 ◽  
Vol 4514 (4) ◽  
pp. 583
Author(s):  
CHUNMING WANG ◽  
LIGUO AN ◽  
YONG HUANG
Keyword(s):  
East China Sea ◽  
Nematode Species ◽  
The Body ◽  
East China ◽  
Valid Species ◽  
The East China Sea ◽  
China Sea ◽  
Free Living Nematode ◽  
Anterior Body ◽  
Left Spicule

Two new free-living nematode species of the family Xyalidae Chitwood, 1951 found in the East China Sea are described. Daptonema donghaiensis sp. nov. is characterized by epidermal chords of transparent cells present in most parts of the body; amphideal fovea approximately two times head diameter from anterior body end; L-shaped spicules with cephalate proximal end; tubular gubernaculums; and conico-cylindrical tail with long cylindrical portion. Cobbia heterospicula sp. nov. is characterized by slender body, buccal cavity with one dorsal tooth and two small subventral teeth; amphideal fovea far from the anterior body end; spicules that are paired but unequal in size, with right spicule longer and left spicule shorter; gubernaculums with dorsal apophyses; and conico-cylindrical tail with long filiform portion. An identification key to valid species of the genus Cobbia is given. 

Spiroplasma burmanica sp. nov. (Spiroplasmataceae: Mollicutes) from a Fossil Plant Louse (Psylloidea: Sternorrhyncha) in mid-Cretaceous Burmese Amber

2020 ◽  
Vol 1 (4) ◽  
pp. 157-163
Author(s):  
George Poinar
Keyword(s):  
New Species ◽  
Body Cavity ◽  
The Body ◽  
Fossil Plant ◽  
Burmese Amber ◽  
Body Shapes ◽  
A New Species

A new species of spiroplasmid, Spiroplasma burmanica sp. nov. (Mollicutes: Entomoplasmatales: Spiroplasmataceae) is described from the body cavity of a fossil plant louse (Psylloidea: Sternorrhyncha) in Burmese amber.  The new species is pleomorphic with body shapes varying from oval to helical.  The majority of the helical cells occur in the head, thorax (including leg cavities) and abdomen of the fossil psyllid.   The association between S. burmanica and the psyllid is considered to be a case of symbiosis, similar to extant relationships.  This discovery of the first fossil spiroplasmid shows that psyllids carried these microorganisms some 100 million years ago.

The association of two Diplogasteroides species (Secernentea: Diplogastrina) and cockchafers (Melolontha spp., Scarabaeidae)

Nematology ◽  
2001 ◽  
Vol 3 (6) ◽  
pp. 603-606 ◽  
Author(s):  
Karin Kiontke ◽  
Albrecht Manegold
Keyword(s):  
Life Cycle ◽  
Nematode Species ◽  
Body Cavity ◽  
The Body ◽  
Southern Germany ◽  
Male To Female

AbstractThe life cycle of two morphologically very similar Diplogasteroides species and their association with cockchafers in southern Germany was investigated. 70-100% of cockchafer grubs and 95% of the imagines carried Diplogasteroides spp. dauer juveniles. The nematodes were almost exclusively found on the external cuticle of the insects and usually not in the body cavity or the intestine. Diplogasteroides spp. dauer juveniles embark on the grub and accumulate during its development. There was some indication that dauer juveniles are transmitted from male to female beetle during copulation. The dauer juveniles resume development only after the death of the beetle, feeding on the cadaver (necromeny). Former hypotheses, assuming the nematode species to be parasitic and to cause the death of cockchafer grubs, can be refuted.

scholarly journals A new heligmonellid (Nematoda) species of the genus Stilestrongylus in Euryoryzomys russatus (Rodentia: Sigmodontinae) in the Atlantic Forest, southern Brazil

2018 ◽  
Vol 93 (3) ◽  
pp. 352-355 ◽  
Author(s):  
R.G. Boullosa ◽  
R.O. Simões ◽  
B.E. Andrade-Silva ◽  
R. Gentile ◽  
A. Maldonado
Keyword(s):  
Small Intestine ◽  
New Species ◽  
Atlantic Forest ◽  
Body Length ◽  
Neotropical Region ◽  
Southern Brazil ◽  
Santa Catarina ◽  
Spicule Length ◽  
A New Species ◽  
Caudal Bursa

AbstractA new species of Nippostrongylinae (Nematoda: Heligmonellidae), Stilestrongylus rolandoi n. sp., is described from specimens collected from the small intestine of the rodent Euryoryzomys russatus in the Atlantic Forest (Santo Amaro da Imperatriz, Santa Catarina state, southern Brazil). The genus Stilestrongylus includes 23 species, which parasitize rodents occurring in the Neotropical region. Stilestrongylus aureus (Durette-Desset & Sutton, 1985) from Argentina, S. azarai (Durette-Desset & Sutton, 1985) from Argentina, S. flavescens (Sutton & Durette-Desset, 1991) from Uruguay, S. franciscanus (Digiani & Durette-Desset, 2002) from Argentina, S. gracielae (Digiani & Durette-Desset, 2006) from Argentina, and S. oryzomysi (Sutton & Durette-Desset, 1991) from Argentina are closely related to Stilestrongylus rolandoi n. sp., all having caudal bursa patterns of types 1–4 in one of the lobes. Stilestrongylus rolandoi n. sp. is distinguished from the aforementioned species by its ray 6 being short in relation to rays 4 and 5, which are long and robust, and by having caudal bursa patterns of types 1–4 in both lobes. The new species has 27 ridges in the mid-body in males, and 24 in females, and has one of the highest ratios of spicule length to body length (21−33%) in this genus.

scholarly journals First record of the genus Lamellarea (Acari, Oribatida, Lamellareidae) from the Neotropical region

2020 ◽  
Vol 27 ◽  
pp. 74-79
Author(s):  
Sergey G. Ermilov
Keyword(s):  
New Species ◽  
Body Size ◽  
First Record ◽  
Neotropical Region ◽  
The Body ◽  
Generic Diagnosis ◽  
Similar Species ◽  
Live Oak ◽  
A New Species

A new species of Lamellarea (Oribatida, Lamellareidae) is described from hick twigs of southern live oak in Florida, U.S.A. (part of the Neotropical region). Lamellarea americana sp. nov. differs from most similar species, Lamellarea digitata and L. forceps by the ventrally inserted lamellar setae, the number of genital setae, the length of interlamellar setae, and the body size. Remarks on generic diagnosis and distribution of Lamellarea are presented.

scholarly journals A striking new species of Papuan groundsnake (Stegonotus: Colubridae) from southern Papua New Guinea, with a dichotomous key to the genus in New Guinea

Zootaxa ◽  
2021 ◽  
Vol 4926 (1) ◽  
pp. 26-42
Author(s):  
MARK O’SHEA ◽  
STEPHEN J. RICHARDS
Keyword(s):  
New Species ◽  
Papua New Guinea ◽  
River Basin ◽  
New Guinea ◽  
Temporal Scale ◽  
The Body ◽  
Colour Pattern ◽  
Dichotomous Key ◽  
Dark Pigmentation ◽  
A New Species

We describe a new species of groundsnake of the genus Stegonotus (Colubridae) from the Purari River basin in Gulf Province, Papua New Guinea. The new species can be most readily distinguished from all other New Guinean Stegonotus by its unique dorsal colour pattern which consists of a dark head and creamy-white anterior one third to two thirds of the body, grading into increasingly dense dark pigmentation on the posterior of the body and tail. It is most similar to S. iridis from the Raja Ampat Archipelago off western New Guinea, but that species has a different pattern of pigmentation dorsally, has a lower ventral scale count (198–211 vs. 229–239), and exhibits a different temporal scale arrangement. The description of S. aplini sp. nov. brings to fourteen the number of Stegonotus species described from New Guinea. A dichotomous key to described species in the New Guinea region is provided. 

Review of blenniid fishes from Fernando de Noronha Archipelago, Brazil, with description of a new species of Scartella (Teleostei: Blenniidae)

Zootaxa ◽  
2009 ◽  
Vol 2006 (1) ◽  
pp. 51-61 ◽  
Author(s):  
CARLOS A. RANGEL ◽  
LIANA F. MENDES
Keyword(s):  
New Species ◽  
Oceanic Islands ◽  
The Body ◽  
Northeastern Brazil ◽  
Dark Line ◽  
Black And White ◽  
Caudal Vertebrae ◽  
Fin Rays ◽  
Fernando De Noronha ◽  
A New Species

Species of the family Blenniidae from Fernando de Noronha Archipelago (03°51’S, 32°26’W), an oceanic island 345 km off northeastern Brazil, are reviewed in this study, which includes the description of a new species of Scartella. The new species differs from its congeners by the combination of the following characters: well-marked diagonal dark line just under the eye, tiny black spots on the head, small black and white spots along the body, 14 segmented dorsal-fin rays, 15 segmented anal-fin rays, and 23 caudal vertebrae. This is the second Scartella species described from Brazilian oceanic islands.

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