A revision of the shovel-nosed lobsters of the genus Thenus (Crustacea: Decapoda: Scyllaridae), with descriptions of three new species  

Zootaxa ◽  
2007 ◽  
Vol 1429 (1) ◽  
pp. 1-38 ◽  
Author(s):  
T. E. BURTON ◽  
P. J.F. DAVIE

The shovel-nosed lobster genus Thenus Leach, 1815, long considered to contain only Thenus orientalis (Lund, 1793), is revised and five species recognised. Thenus indicus Leach, 1815, which had been relegated to the synonymy of T. orientalis, is reinstated and a lectotype designated. Three new species T. australiensis, T. unimaculatus and T. parindicus are diagnosed. Specimens of Thenus were collected from various locations throughout the Indo-West Pacific Oceans. Samples were analysed using a concordance approach involving three techniques: morphometrics/morphology, starch gel isozyme electrophoresis, and mitochondrial DNA sequencing of 16S and COI genes. All three investigations supported the recognition of five species. Despite significant genetic divergence, several sympatric species are morphologically similar and identification can be difficult; a key using a combination of live colour patterns and morphometric ratios is presented as an aid to species discrimination.

Zootaxa ◽  
2018 ◽  
Vol 4433 (2) ◽  
pp. 305
Author(s):  
FRANK GLAW ◽  
JÖRN KÖHLER ◽  
MIGUEL VENCES

We describe three new gecko species of the Paroedura oviceps clade, diagnosed by deep divergences in mitochondrial DNA, absence of haplotype sharing in two nuclear genes (sacs and kiaa1239), and morphological differences. Paroedura spelaea sp. nov. is an extremely slender species from karst habitats in the limestone massif of the Tsingy de Bemaraha National Park in western Madagascar, morphologically reminiscent of P. homalorhina but distinguished by the absence of distinct dorsal rows of spiny tubercles. Paroedura fasciata sp. nov. from the small karstic island Nosy Hara in northern Madagascar is phylogenetically placed sister to P. spelaea despite radical morphological differences. It is morphologically most similar to P. hordiesi from the geographically close Montagne des Français massif, but is smaller, has slightly more spiny dorsal scales, and a distinctive colour pattern with light grey dorsal crossbands. The third species, Paroedura kloki sp. nov., is known from Ankarafantsika National Park and the western slopes of Makira, two sites of dry to transitional forest in western Madagascar. It is at least partly arboreal and morphologically very similar to P. oviceps, from which it differs by spiny scales extending over its entire tail. Although incomplete, the available phylogenetic evidence suggests that the karst specialists in the P. oviceps clade (P. fasciata, P. homalorhina, P. hordiesi, P. spelaea) form a monophyletic group which might have diversified by vicariance after becoming isolated, respectively, in their limestone habitats in Tsingy de Bemaraha, Ankarana, Nosy Hara and Montagne des Français. 


Zootaxa ◽  
2008 ◽  
Vol 1740 (1) ◽  
pp. 59 ◽  
Author(s):  
ROGER D. PRICE ◽  
KEVIN P. JOHNSON ◽  
ROBERT C. DALGLEISH

Three new species of Myrsidea parasitic on members of the avian family Troglodytidae are described herein. They and their type hosts are M. whitemani ex the Rufous-naped Wren, Campylorhynchus rufinucha (Lesson, 1838), M. bessae ex the Riverside Wren, Thryothorus semibadius Salvin, 1870, and M. vincesmithi ex the Rufous-breasted Wren, Thryothorus rutilus Vieillot, 1819. Myrsidea troglodyti (Denny, 1842) is redescribed and a lectotype designated. Results of sequencing a portion of the mitochondrial COI gene for one of these species and several other species of Myrsidea are given to compare genetic divergence.


Zootaxa ◽  
2012 ◽  
Vol 3587 (1) ◽  
pp. 78 ◽  
Author(s):  
G. BEHOUNEK ◽  
H. L. HAN ◽  
V. S. KONONENKO

Two new genera and three species of the Pantheinae are described. The genus Flavala gen. n. (type-species Acronycta flavala Moore, 1867) is separated from Anacronicta Warren, 1909. The new combination Flavala flavala (Moore, 1867) comb. n. is introduced. Two new species, Flavala crypta sp. n. and F. secunda sp. n. are described based on the result of barcoding of mitochondrial DNA. The new genus Xizanga gen. n. (type-species Xizanga mysterica sp.n.) is tentatively placed in Pantheinae.


Zootaxa ◽  
2017 ◽  
Vol 4318 (1) ◽  
pp. 1 ◽  
Author(s):  
RYLAN SHEARN ◽  
ISA SCHÖN ◽  
KOEN MARTENS ◽  
STUART HALSE ◽  
JOE KRAWIEC ◽  
...  

In this study, 13 previously recorded populations of Ilyodromus amplicolis De Deckker, 1981 from temporary aquatic habitats in Western Australia were scanned for undescribed species diversity using morphological and molecular systematics techniques. The study found congruent morphological and molecular evidence for three species that are new to science, all of which are formally described here (I. armacutis n. sp., I. sensaddito n. sp. and I. hiatus n. sp.). The findings shed light on the potential for further undescribed diversity in the genus Ilyodromus Sars, 1894. 


ZooKeys ◽  
2019 ◽  
Vol 835 ◽  
pp. 1-15 ◽  
Author(s):  
B. Gabriela Arango ◽  
Hudson T. Pinheiro ◽  
Claudia Rocha ◽  
Brian D. Greene ◽  
Richard L. Pyle ◽  
...  

Three new species ofChromis(Perciformes, Pomacentridae) from the Philippines, collected between 75–150 m depth, are described by a combination of morphological features and their coloration.Chromisguntingsp. n.was found in Batangas and Oriental Mindoro, and differs from its congeners in body depth (2.1–2.2 in SL), and color of adults, light brown, with a silver area on the anterior end and a bilateral black margin along the exterior side of the tail. It is most similar toC.scotochiloptera, with a 5.3% genetic divergence in COI.Chromishangganansp. n.was found around Lubang Island. Body depth (1.9–2.0 in SL) and adult coloration (yellowish with dark black outer margins on dorsal and anal fins) also separate this species from its congeners. It is most similar toC.pembae, with a 2.5% genetic divergence.Chromisbowesisp. n.was found in Batangas, and also differs from its congeners by the combination of body depth (1.5–1.6 in SL), and color of adults (brownish grey in the dorsal side to whitish on the ventral side, with alternating dark and light stripes in the sides of body). It is most similar toC.earina, with a 3.6% genetic divergence in COI.


Zootaxa ◽  
2018 ◽  
Vol 4377 (1) ◽  
pp. 125
Author(s):  
MAGALI AGUILERA-URIBE ◽  
JUAN JOSÉ MARTÍNEZ ◽  
ALEJANDRO ZALDÍVAR-RIVERÓN

Three species of the braconid genus Pambolus (Braconidae) are described from Mexico: P. jarocho sp. n., P. chinanteco sp. n. and P. bizelab sp. n. The external morphological variation in males and females of P. oblongispina Papp, previously known only by two females from Honduras and northern Mexico, is described based on material from Jalisco and Oaxaca in central and southeast Mexico. Molecular characterisation of the examined species was carried out based on the 28S nuclear ribosomal and the COI mitochondrial DNA gene markers. 


Zootaxa ◽  
2019 ◽  
Vol 4674 (1) ◽  
pp. 68-82
Author(s):  
ZHENGYAN ZHOU ◽  
ZHIYONG SUN ◽  
SHUO QI ◽  
YUYAN LU ◽  
ZHITONG LYU ◽  
...  

A new snake species of the genus Hebius is described on the basis of three specimens from Hunan Province, China. The new species can be distinguished from its congeners by a significant genetic divergence of 6.1%–12.9% of the mitochondrial cytb gene and a combination of the following morphological characters: (1) tail long, approximately 25% of the total length; (2) dorsal scale rows 19-19-17, vertebral scales enlarged, smooth, 2nd–10th rows distinctly keeled; (3) anterior temporals 2, preocular 1, postoculars 3; (4) ventrals 160–164; (5) internasals narrowed anteriorly; (6) a pair of occipital spots and a pale postparietal streak; (7) a pale brown or beige dorsolateral stripe on the 4th–6th scale rows; (8) ventral scales brick-red at their outer border, with a row of well-defined dark blotches; (9) maxillary teeth 21, gradually enlarged, followed by 2 moderately enlarged posterior teeth, without diastema; (10) nostrils lateral. 


2020 ◽  
Vol 4 (6) ◽  
Author(s):  
Vinicius S Ferreira ◽  
Oliver Keller ◽  
Marc A Branham

Abstract In this study, we describe a new Lampyridae subfamily, Chespiritoinae new subfamily, its sole genus Chespiritonew genus, and three new species: Chespirito zaragozainew species, Chespirito lloydinew species, and Chespirito ballantyneaenew species from the Neotropical portions of Mexico. Chespirito can be readily separated from all other known Lampyridae by the unique prosternum, characterized by being very wide, divided in the middle by a distinct suture forming two plates, with the anterior margin bearing a narrow inter-coxal process, the strongly setose filiform antennae, with antennomere III much smaller than all other antennomeres, the pronotum medially constricted (not in C. ballantyneae), with area adjacent to disc strongly punctate and with the presence of a strongly developed longitudinal carina. To test the placement of the genus within the Lampyridae, we obtained three genetic markers (18S rRNA, 28SrRNA, and cox1 mitochondrial DNA) from C. zaragozai and performed a maximum likelihood (ML) and Bayesian inference (BI) analysis. Our analyses rendered nearly identical tree topologies, with C. zaragozainew species recovered as an independent lineage as sister to Pollaclasis bifaria (Say) (Coleoptera, Lampyridae) + Cyphonocerus ruficollis Kiesenwetter (Coleoptera, Lampyridae)+Luciolinae, with a posterior probability of 96 for the BI analysis and UFBoot respectively of 91 for the ML analysis with the entire clade sister to Pterotus obscuripennis LeConte (Coleoptera, Lampyridae). A detailed examination of the morphology of Chespirito indicates that this lineage is divergent from all other known Lampyridae, which combined with the results of our analyses supports the erection of a new subfamily.


PhytoKeys ◽  
2021 ◽  
Vol 182 ◽  
pp. 67-82
Author(s):  
John L. Clark ◽  
Francisco Tobar ◽  
Laura Clavijo ◽  
Mathieu Perret ◽  
Catherine Helen Graham

Three new species of Columnea (Gesneriaceae, tribe Gesnerieae) are described from the western Andean slopes of northern Ecuador and southern Colombia. Columnea angulata J.L. Clark & F. Tobar and Columnea floribunda F. Tobar & J.L. Clark are described from northern Ecuador. Columnea tecta J.L. Clark & Clavijo is described from southern Colombia and northern Ecuador. The three new species are facultative epiphytes with dorsiventral shoots and are readily recognized by bright red tips on the abaxial and adaxial leaf surfaces. The species described here are vegetatively similar to the sympatric species Columnea picta H. Karst. and are readily differentiated by floral features that are illustrated, described and featured with digital images.


2021 ◽  
Author(s):  
Giuly G. Iturralde ◽  
Heloísa Allgayer ◽  
Victor H. Valiati ◽  
Ana M. Leal-Zanchet

The genus Obama Carbayo, Álvarez-Presas, Olivares, Marques, Froehlich & Riutort, 2013 currently comprises 41 species, most of them from Brazilian rainforests. This study describes three new species, viz. Obama autumna sp. nov., Obama leticiae sp. nov. and Obama aureolineata sp. nov., from remnants of Mixed Ombrophilous Forest in southern Brazil, based on an integrative approach and analyses their relationships within the genus. Obama autumna and O. aureolineata show distinctive colour patterns, contrasting yellow and black, which is unusual in species of the genus. The three species can be easily distinguished from their congeners by their external features and a combination of anatomical characteristics, such as the pharyngeal shape, shape and arrangement of the prostatic vesicle and anatomy of the penis papilla. The morphological hypotheses are corroborated by three species delimitation methods (ABGD, PTP and GMYC) and by phylogenetic analysis of the cytochrome c oxidase subunit I gene using maximum likelihood estimation and Bayesian inference. Furthermore, our phylogenetic analyses point out that Obama may be subdivided into three main clades, containing a variable number of well supported groups, the relationships of which remain unresolved. Obama autumna belongs to a distinct clade in relation to O. aureolineata and O. leticiae. Obama aureolineata belongs to one of the well supported groups, having a close relationship with O. apeva. Obama autumna may be more closely related to O. anthropophila and O. decidualis and O. leticiae to O. braunsi. However, the low nodal support does not allow the phylogenetic relationships of these species to be clearly established. We discuss morphological knowledge gaps in Obama, as well as issues regarding analyses based on molecular markers, which should be addressed to clarify relationships within the genus. urn:lsid:zoobank.org:pub:9EE7316D-F0BE-49EC-BBFD-5687952D6592


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