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.

Tetrahymena chironomi sp.nov., a ciliate from midge larvae, and the current status of facultative parasitism in the genus Tetrahymena

Parasitology ◽  
1960 ◽  
Vol 50 (1-2) ◽  
pp. 111-153 ◽  
Author(s):  
John O. Corliss
Keyword(s):  
New Species ◽  
Body Cavity ◽  
Fourth Instar ◽  
The Body ◽  
Current Status ◽  
Free Living ◽  
Large Numbers ◽  
Laboratory Cultures ◽  
A New Species ◽  
Large Spherical

A holotrichous ciliate found repeatedly in very large numbers in the body cavity of larval midges (Chironomus plumosus) from Paris and Berlin areas is described as a new species of the genus Tetrahymena, named T. chironomi sp.nov. It appears to represent a true example of facultative parasitism, since parasites released from the host survive in laboratory cultures, and free-living ciliates believed identical have been isolated from fresh-water sources in nature. Over a 3-month period more than 2000 larvae, principally fourth-instar stages, were examined; about 9 % of these were found to be infected with ciliates.T. chironomi is the thirteenth species to be added to the growing holotrich hymenostome genus Tetrahymena. It is taxonomically distinguishable from other members of the genus on the basis of a combination of characteristics related to its morphology and bionomics. It is one of the smallest species, has 24–27 ciliary meridians and a relatively large, spherical micronucleus, does not exhibit dimorphism or cystic stages in its life cycle, and does not possess a caudal cilium.

On a New Species of the Genus Saurositus from an Indian lizard

1965 ◽  
Vol 39 (2-3) ◽  
pp. 137-140
Author(s):  
P. G. Deshmukh ◽  
S. Mehdi Ali
Keyword(s):  
New Species ◽  
Connective Tissue ◽  
Body Cavity ◽  
The Body ◽  
Body Diameter ◽  
Calotes Versicolor ◽  
Maximum Body ◽  
A New Species

Three specimens of this species were collected on one occasion from the lizard Calotes versicolor. The material consists of one male and two females which were found entangled in the connective tissue of the body cavity.These are thin worms measuring 11·5 mm. long in the male and 18·3 mm. in the female. The maximum body diameter is 0·23 and 0·35 mm. respectively in the male and the female.

A new species from Mexico of the Nearctic genus Percymoorensis, and remarks on the family Haemopidae (Hirudinoidea)

1971 ◽  
Vol 49 (8) ◽  
pp. 1095-1103 ◽  
Author(s):  
Laurence R. Richardson
Keyword(s):  
New Species ◽  
Body Cavity ◽  
The Body ◽  
Reproductive Systems ◽  
The Family ◽  
A New Species

P. caballeroi sp. nov. has bimyomeric megamorphic median regions on the reproductive systems, both extended in the paramedian chambers of the body cavity. It differs from P. marmoratis in having pale maculae forming a simple somital pattern, unequal annuli on the midnephric somites, and a postanal chamber. The genera Philobdella and Semiscolex are excluded from the Haemopidae, and subfamilies Haemopinae and Mollibdellinae are proposed.

An integrative taxonomic study reveals a new species ofTylodelphysDiesing, 1950 (Digenea: Diplostomidae) in central and northern Mexico

2015 ◽  
Vol 90 (6) ◽  
pp. 668-679 ◽  
Author(s):  
M. García-Varela ◽  
A.L. Sereno-Uribe ◽  
C.D. Pinacho-Pinacho ◽  
E. Hernández-Cruz ◽  
G. Pérez-Ponce de León
Keyword(s):  
New Species ◽  
Dna Sequences ◽  
Genetic Divergence ◽  
Phylogenetic Trees ◽  
Body Cavity ◽  
The Body ◽  
Internal Transcribed Spacers ◽  
Morphological Evidence ◽  
Northern Mexico ◽  
A New Species

AbstractTylodelphys aztecaen. sp. (Digenea: Diplostomidae) is described from adult specimens obtained from the intestine of the pied-billed grebe (Podilymbus podiceps) and the metacercariae found in the body cavity of freshwater fishes of the families Goodeidae and Cyprinidae in eight localities across central and northern Mexico. The new species is mainly distinguished from the other four described species ofTylodelphysfrom the Americas (T. adulta, T. americana, T. elongataandT. brevis) by having a forebody slightly concave, a larger ventral sucker, two larger pseudosuckers and by having between 2 and 7 eggs in the uterus. Partial DNA sequences of the mitochondrial gene cytochromecoxidase subunit I (cox1), and the internal transcribed spacers (ITS1+5.8S+ ITS2) of the ribosomal DNA, were generated for both developmental stages and compared with available sequences in GenBank of other congeners. The genetic divergence estimated amongTylodelphys aztecaen. sp. and other congeneric species varied from 12 to 15% forcox1, and from 3 to 11% for ITS. In contrast, the genetic divergence among metacercariae and adults of the new species was very low, ranging between 0 and 1% forcox1and between 0 and 0.3% for ITS. Phylogenetic analyses inferred with both molecular markers using maximum likelihood and Bayesian inference placed the adults and their metacercariae in a single clade, confirming that both stages are conspecific. The morphological evidence and the genetic divergence, in combination with the reciprocal monophyly in both phylogenetic trees, support the hypothesis that the diplostomids found in the intestines of the pied-billed grebe bird and the body cavity from goodeid and cyprinid fishes in central and northern Mexico represent a new species.

On a New Species of Splendidofilaria Skrjabin, 1923 from India

1960 ◽  
Vol 34 (1-2) ◽  
pp. 139-140 ◽  
Author(s):  
S. Amir ◽  
S. M. Ali
Keyword(s):  
New Species ◽  
Body Cavity ◽  
The Body ◽  
A New Species

During the tour in Kashmir, two males and four females of the species to be described were collected from the vicinity of the heart and the body cavity of the white cheeked Bulbul, Molpastes leucogenys leucogenys.These are rather slender worms with attenuated anterior ends. The posterior ends are twisted into 2–3 coils. The cuticle is thin, smooth, nonstriated, but richly furnished with bosses throughout the length of the body.

A new species of Otobothrium (Cestoda, Trypanorhyncha) from Australian fishes

Parasitology ◽  
1954 ◽  
Vol 44 (1-2) ◽  
pp. 65-70 ◽  
Author(s):  
Ian D. Hiscock
Keyword(s):  
New Species ◽  
Body Cavity ◽  
The Body ◽  
Mugil Cephalus ◽  
The Common ◽  
A New Species

In April 1953, several specimens of the common commercial mullet, Mugil cephalus L., heavily infested with cysts in the body cavity, were received. In May, June and July 1953, several specimens of the estuarine catfish, Netuma australis (Gunther) (Family Ariidae), similarly infected, came to hand. All specimens were taken from the lower reaches of the Brisbane River, Brisbane.

Steinernema borjomiense n. sp. (Rhabditida: Steinernematidae), a new entomopathogenic nematode from Georgia

Nematology ◽  
2018 ◽  
Vol 20 (7) ◽  
pp. 653-669 ◽  
Author(s):  
Oleg Gorgadze ◽  
Elena Fanelli ◽  
Manana Lortkhipanidze ◽  
Alberto Troccoli ◽  
Medea Burjanadze ◽  
...  
Keyword(s):  
New Species ◽  
18S Rrna ◽  
Entomopathogenic Nematode ◽  
Phylogenetic Analyses ◽  
Tail Length ◽  
Morphological Characters ◽  
18S Rrna Gene ◽  
The Body ◽  
Rrna Gene ◽  
A New Species

Summary A new species of entomopathogenic nematode, Steinernema borjomiense n. sp., was isolated from the body of the host insect, Oryctes nasicornis (Coleoptera: Scarabaeidae), in Georgia, in the territory of Borjomi-Kharagauli. Morphological characters indicate that the new species is closely related to species of the feltiae-group. The infective juveniles are characterised by the following morphological characters: body length of 879 (777-989) μm, distance between the head and excretory pore = 72 (62-80) μm, pharynx length = 132 (122-142) μm, tail length = 70 (60-80) μm, ratio a = 26.3 (23.0-29.3), H% = 45 (40-51), D% = 54 (47-59), E% = 102 (95-115), and lateral fields consisting of seven ridges (eight incisures) at mid-body. Steinernema borjomiense n. sp. was molecularly characterised by sequencing three ribosomal regions (the ITS, the D2-D3 expansion domains and the 18S rRNA gene) and the mitochondrial COI gene. Phylogenetic analyses revealed that S. borjomiense n. sp. differs from all other known species of Steinernema and is a member of the monticolum-group.

A new species and genus of Alienopteridae (Blattodea) from mid-Cretaceous amber of northern Myanmar

Zootaxa ◽  
2021 ◽  
Vol 4941 (4) ◽  
pp. 580-586
Author(s):  
XIN-YU CHEN ◽  
HUA-CHUAN ZHANG ◽  
XIAOXIAO SHI
Keyword(s):  
New Species ◽  
Fossil Record ◽  
Posterior Part ◽  
Batesian Mimicry ◽  
Burmese Amber ◽  
New Evidence ◽  
A New Species

Eminespina burma gen. et sp. nov., is described and illustrated based on a female embedded in Cretaceous Burmese amber of Cenomanian age. Autapomorphic are three unique spines distributed anterior quarter of pronotum from longer posterior part. The new evidence of Batesian mimicry in the insect fossil record is briefly discussed. 

Description of a new species of Bush frog (Anura: Rhacophoridae: Raorchestes) from northwestern Yunnan, China

Zootaxa ◽  
2021 ◽  
Vol 4941 (2) ◽  
pp. 239-258
Author(s):  
YUN-HE WU ◽  
XIAO-LONG LIU ◽  
WEI GAO ◽  
YU-FAN WANG ◽  
YING-CHUN LI ◽  
...  
Keyword(s):  
New Species ◽  
Southern China ◽  
Field Work ◽  
The Body ◽  
Adult Males ◽  
The Past ◽  
Black Region ◽  
One New Species ◽  
A New Species ◽  
Northwestern Yunnan

Approximately half of the species in speciose genus Raorchestes were described during the past 10 years, yet only 11 species are known from Southeast Asia and southern China (SEA-SC), adjacent Himalayas, and northeastern India. Field work in northwestern Yunnan province, China resulted in the discovery of one new species in the genus based on morphological and molecular analyses. The new species is diagnosed by small size with 15.0–19.0 mm SVL in adult males (n=3); tongue pyriform, notched posteriorly; rudimentary webbing between toes; fingers and toes with narrow lateral dermal fringes; tibiotarsal articulation reaching anterior of the eye when hindlimb is stretched along the side of the body; relative finger lengths: I < II < IV < III, relative toe lengths: I < II < V < III < IV; inner metatarsal tubercle oval, outer metatarsal tubercle absent; finger discs and toe discs greyish or orange; flank near the crotch with a distinct black region between two creamy white patches, and the thigh having a similar black patch near the groin, proximal to another creamy white patch; a distinct “) (”-shaped dark marking on the back; male with external single subgular vocal sac; nuptial pad absent. A phylogenetic tree was reconstructed based on the mitochondrial genes for 16S rRNA and ND1. The results indicated that these individuals form a monophyletic group, and show high genetic divergence to their closest relatives within the genus (uncorrected p-distances > 3.2%) by distance of 16S comparable to the divergence between recognized Raorchestes species. This study further enriches the diversity of rhacophorids, especially in northwestern Yunnan. 

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.

Sign in / Sign up

Export Citation Format

Share Document